Description:Brief Description of the Drawings

Generally, the present disclosure relates to nanocomposite synthesis methods. Particularly, the present disclosure relates to a method for synthesizing a Strontium Ferrite Graphene Oxide Nanocomposite.
Background
The background description includes information that may be useful in understanding the present invention. It is not an admission that any of the information provided herein is prior art or relevant to the presently claimed invention, or that any publication specifically or implicitly referenced is prior art.
In recent years, the field of material science has witnessed significant advancements, particularly in the development and application of nanocomposites. Nanocomposites, composed of a matrix and one or more nanoscale reinforcements, offer enhanced properties over their individual constituents, making them highly desirable for a wide range of applications. Among these, nanocomposites have garnered attention due to their potential in data storage, electronics, and biomedicine. Specifically, Strontium Ferrite Graphene Oxide Nanocomposites (SFGO-Nanocomposites) have emerged as a material of interest due to their unique properties combined with the exceptional mechanical, thermal, and electrical properties of graphene oxide.
The synthesis of graphene oxide, a derivative of graphene, involves various chemical and physical methods, each contributing to the functionalization of graphene sheets with oxygen-containing groups. This functionalization facilitates the dispersion of graphene oxide in solvents, making it an ideal candidate for composite materials. However, the challenge lies in uniformly integrating magnetic particles, such as strontium ferrite, with graphene oxide to form a homogenous nanocomposite. Traditional methods, while effective in some aspects, often lead to agglomeration of magnetic particles, which can detract from the composite's overall performance.
One conventional approach to synthesizing nanocomposites involves the physical mixing of pre-synthesized nanoparticles with graphene or graphene oxide. This method, though straightforward, frequently results in non-uniform distribution of nanoparticles within the matrix, affecting the structural properties of the final product. Another commonly employed technique is in-situ chemical precipitation, where magnetic particles are grown directly on the graphene oxide sheets. While this method improves the distribution of magnetic particles, controlling the size and shape of the nanoparticles remains a challenge, impacting the characteristics of the nanocomposite.
In light of the above discussion, there exists an urgent need for solutions that overcome the challenges associated with conventional systems and techniques for synthesizing Strontium Ferrite Graphene Oxide Nanocomposites. The present method aims to address these issues by offering a novel approach to the synthesis of SFGO-Nanocomposites, providing uniform dispersion of strontium ferrite within a graphene oxide matrix and enhancing the composite's mechanical, and thermal properties.
Summary
The following presents a simplified summary of various aspects of this disclosure in order to provide a basic understanding of such aspects. This summary is not an extensive overview of all contemplated aspects, and is intended to neither identify key or critical elements nor delineate the scope of such aspects. Its purpose is to present some concepts of this disclosure in a simplified form as a prelude to the more detailed description that is presented later.
The following paragraphs provide additional support for the claims of the subject application.
In a first aspect, the present disclosure aims to provide a method for synthesizing a Strontium Ferrite Graphene Oxide Nanocomposite (SFGO-Nanocomposite). Said method includes ultrasonically dissolving synthesized graphene oxide in ethylene glycol, followed by mixing and stirring strontium nitrate, ferric nitrate, and sodium hydroxide into the graphene oxide-ethylene glycol solution. The solution is then transferred into a Teflon-lined stainless-steel autoclave, heated to a specific temperature for a predetermined time duration, and cooled to obtain a precipitate. The resulting nanocomposite exhibits enhanced magnetic and antimicrobial properties, making it suitable for various applications in data storage, electromagnetic interference shielding, and biomedical fields.
Further, the method specifies quantities for the graphene oxide and other reagents, ensuring precision in the synthesis process. The graphene oxide, for example, is used in an amount of approximately 0.9 grams, combined with precise amounts of ethylene glycol, strontium nitrate, ferric nitrate, and sodium hydroxide, to facilitate the optimal reaction conditions for nanocomposite formation.
Moreover, the process involves stirring the solution for approximately 50-70 minutes and maintaining the autoclave temperature at 200 °C for around 6 hours, which contributes to the uniformity and quality of the nanocomposite produced. Post-synthesis steps include washing the precipitate with ethanol and drying it in a vacuum oven at 60 °C, with multiple washes to remove byproducts and unreacted materials, further purifying the final SFGO-Nanocomposite.
Furthermore, the synthesis of graphene oxide is detailed, beginning with a mixture of graphene powder, potassium nitrate, and concentrated sulfuric acid, followed by a series of steps including cooling, adding potassium permanganate, heating, diluting, and neutralizing the reaction media. This preparation plays a critical role in the overall synthesis process, providing a high-quality graphene oxide base for the nanocomposite. The specific amounts of graphene powder, potassium nitrate, sulfuric acid, and potassium permanganate are delineated, emphasizing the controlled environment required for successful synthesis.
Additionally, the antimicrobial nanocomposite material produced by the disclosed method offers significant potential for application in environments where antimicrobial properties are crucial, further expanding the utility and applicability of the SFGO-Nanocomposite.

Field of the Invention

The features and advantages of the present disclosure would be more clearly understood from the following description taken in conjunction with the accompanying drawings in which:
FIG. 1 illustrates a method (100) for the synthesis of a Strontium Ferrite Graphene Oxide Nanocomposite, in accordance with the embodiments of the present disclosure.
FIG. 2 illustrates antibacterial efficacy of Strontium Ferrite Graphene Oxide Nanocomposite (SFGO-Nanocomposite) was evaluated using the disc diffusion method on various bacterial strains, in accordance with the embodiments of the present disclosure.
FIG. 3 illustrates antifungal effects of Strontium Ferrite Graphene Oxide Nanocomposite (SFGO-Nanocomposite) against Candida albicans and Candida tropicalis were assessed using the broth microdilution method, in accordance with the embodiments of the present disclosure.
FIG. 4 illustrates the synthesis process of Graphene Oxide (GO), starting with graphite powder as the raw material, in accordance with the embodiments of the present disclosure.
FIG. 5 outlines the subsequent steps to convert the Graphene Oxide into a Strontium Ferrite Graphene Oxide Nanocomposite, in accordance with the embodiments of the present disclosure.

Detailed Description
In the following detailed description of the invention, reference is made to the accompanying drawings that form a part hereof, and in which is shown, by way of illustration, specific embodiments in which the invention may be practiced. In the drawings, like numerals describe substantially similar components throughout the several views. These embodiments are described in sufficient detail to claim those skilled in the art to practice the invention. Other embodiments may be utilized and structural, logical, and electrical changes may be made without departing from the scope of the present invention. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is defined only by the appended claims and equivalents thereof.
The use of the terms “a” and “an” and “the” and “at least one” and similar referents in the context of describing the invention (especially in the context of the following claims) are to be construed to cover both the singular and the plural, unless otherwise indicated herein or clearly contradicted by context. The use of the term “at least one” followed by a list of one or more items (for example, “at least one of A and B”) is to be construed to mean one item selected from the listed items (A or B) or any combination of two or more of the listed items (A and B), unless otherwise indicated herein or clearly contradicted by context. The terms “comprising,” “having,” “including,” and “containing” are to be construed as open-ended terms (i.e., meaning “including, but not limited to,”) unless otherwise noted. Recitation of ranges of values herein are merely intended to serve as a shorthand method of referring individually to each separate value falling within the range, unless otherwise indicated herein, and each separate value is incorporated into the specification as if it were individually recited herein. All methods described herein can be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The use of any and all examples, or exemplary language (e.g., “such as”) provided herein, is intended merely to better illuminate the invention and does not pose a limitation on the scope of the invention unless otherwise claimed. No language in the specification should be construed as indicating any non-claimed element as essential to the practice of the invention.
Pursuant to the "Detailed Description" section herein, whenever an element is explicitly associated with a specific numeral for the first time, such association shall be deemed consistent and applicable throughout the entirety of the "Detailed Description" section, unless otherwise expressly stated or contradicted by the context.
FIG. 1 illustrates a method (100) for the synthesis of a Strontium Ferrite Graphene Oxide Nanocomposite, in accordance with the embodiments of the present disclosure. The method (100) encompasses several important steps, each contributing to the successful production of the nanocomposite. The method (100) comprises step (102), ultrasonically dissolving synthesized graphene oxide in ethylene glycol. This step involves the dispersion of graphene oxide particles in ethylene glycol using ultrasonic waves, which helps to exfoliate the graphene oxide and distribute it uniformly throughout the solvent. Ultrasonic dissolution serves as a critical precursor for the incorporation of metal nitrates, ensuring a homogenous solution that is conducive to the formation of the nanocomposite. Subsequent to the ultrasonic dissolution, the method (100) step (104) includes mixing and stirring strontium nitrate, ferric nitrate, and sodium hydroxide into the graphene oxide-ethylene glycol solution. This mixture of strontium and iron nitrates with sodium hydroxide introduces the necessary ions for strontium ferrite formation. The stirring process ensures that these components are evenly distributed within the solution, facilitating a uniform reaction throughout the mixture.
Following the mixing and stirring process, in step (106), the solution is transferred into a Teflon-lined stainless-steel autoclave. The use of a Teflon-lined autoclave is crucial for maintaining the chemical integrity of the solution, as it prevents any reaction between the solution and the autoclave's material. Additionally, the stainless-steel construction of the autoclave ensures durability and resistance to the high temperatures required for the synthesis process. The autoclave is then heated to a temperature for a pre-set time duration. Heating the autoclave initiates the chemical reaction that leads to the formation of strontium ferrite particles within the graphene oxide matrix. The precise control over temperature and time is imperative for achieving the desired size and distribution of strontium ferrite particles, which directly influence the magnetic properties of the final nanocomposite. In step (108), the method (100) involves cooling the autoclave to obtain a precipitate. Cooling allows the reaction to cease at a controlled rate, ensuring the stabilization of the newly formed strontium ferrite particles within the graphene oxide matrix. The precipitate thus obtained comprises the Strontium Ferrite Graphene Oxide Nanocomposite, which can then be further processed as needed for specific applications. The described method enables the production of SFGO-Nanocomposites with controlled magnetic properties, facilitating their use in a variety of applications, including data storage, electromagnetic interference shielding, and advanced sensing technologies.
In an embodiment, the method (100) for synthesizing a Strontium Ferrite Graphene Oxide Nanocomposite, precise quantities of reactants are stipulated to ensure optimal synthesis conditions. Specifically, the graphene oxide is utilized in an amount of approximately 0.9 grams. This quantity is crucial for achieving the desired dispersion and interaction with strontium ferrite within the composite. Ethylene glycol, serving as the solvent and reaction medium, is used in an amount of approximately 80 milliliters, facilitating the uniform dispersion of graphene oxide. Strontium nitrate and ferric nitrate, providing the strontium and iron components for the ferrite, are used in amounts of approximately 0.95 grams and 1.72 grams, respectively. These quantities are meticulously calculated to maintain stoichiometric ratios conducive to the formation of strontium ferrite. Sodium hydroxide, added in an amount of approximately 1.5 grams, plays a pivotal role in controlling the pH of the solution, which is critical for the precipitation of the nanocomposite. This precise control over the reactant quantities ensures a consistent and reproducible synthesis process, leading to nanocomposites with uniform properties.
In another embodiment, the method (100) emphasizes the importance of specific process conditions during the synthesis of the Strontium Ferrite Graphene Oxide Nanocomposite. The solution containing the reactants is stirred for a duration of approximately 50-70 minutes, ensuring thorough mixing and interaction between the components. Subsequently, the autoclave containing the solution is maintained at a temperature of 200 °C for a period of approximately 6 hours. This controlled heating process facilitates the chemical reactions necessary for the formation of the nanocomposite. The precision in stirring duration and heating conditions significantly influences the size, morphology, and distribution of strontium ferrite particles within the graphene oxide matrix. By adhering to these specified conditions, the method aims to produce nanocomposites with enhanced magnetic properties and uniform particle dispersion, which are critical for their intended applications.
In another embodiment, post-synthesis processing steps are introduced to enhance the purity and performance of the SFGO-Nanocomposite. Following the synthesis, the precipitate obtained is subjected to washing with ethanol. This washing step removes any residual byproducts and unreacted starting materials, which could otherwise affect the nanocomposite's properties. After washing, the nanocomposite is dried in a vacuum oven at 60 °C. The drying process not only removes any remaining solvents but also aids in improving the structural integrity of the nanocomposite. These post-synthesis treatments are crucial for ensuring the high quality of the SFGO-Nanocomposite, making it suitable for various applications, including those requiring high magnetic responsiveness and structural stability.
In a further embodiment, the method (100) incorporates a rigorous washing protocol to ensure the complete removal of byproducts and unreacted starting materials from the synthesized nanocomposite. The washing step is performed multiple times, utilizing ethanol as the washing agent. This repeated washing is essential for achieving a high level of purity in the final nanocomposite product. By meticulously removing all impurities, the method enhances the magnetic and physical properties of the SFGO-Nanocomposite, making it more effective for its intended applications. The thorough cleaning process thus plays a critical role in optimizing the performance and applicability of the nanocomposite.
In an embodiment, concerning the synthesis of graphene oxide for use in method (100), a detailed process is outlined to ensure the production of high-quality graphene oxide. The process begins with creating a mixture comprising graphene powder, potassium nitrate, and concentrated sulfuric acid. This mixture is then cooled in an ice bath while being continuously stirred, followed by the addition of potassium permanganate. The mixture is heated to approximately 35 °C to form a paste, which is then diluted with distilled water and heated to 90 °C. Hydrogen peroxide is added dropwise to obtain a dark reaction media, which is subsequently neutralized with distilled water. The pH-neutralized reaction media is sonicated, centrifuged to separate solid particles, and dried to obtain graphene oxide. This meticulous process ensures the production of graphene oxide with optimal characteristics for synthesizing the SFGO-Nanocomposite, highlighting the importance of starting material quality in achieving desired nanocomposite properties.
In an embodiment, specific quantities of materials used in the synthesis of graphene oxide are defined within method (100). The graphene powder is used in an amount of two grams, potassium nitrate in an amount of approximately two grams, and concentrated sulfuric acid in an amount of approximately one hundred milliliters. These specified quantities are critical for achieving the desired reaction conditions and ensuring the successful production of graphene oxide with the necessary properties for nanocomposite synthesis. By maintaining precise control over the quantities of these materials, the method ensures consistency and reproducibility in the graphene oxide synthesis process, directly influencing the quality of the final SFGO-Nanocomposite.
In yet another embodiment, the addition of potassium permanganate is specified in an amount of approximately twelve grams during the synthesis of graphene oxide. This precise quantity is crucial for ensuring the effective oxidation of graphene powder, a key step in producing graphene oxide with the desired properties. The controlled addition of potassium permanganate facilitates the introduction of oxygen-containing functional groups onto the graphene structure, which is essential for its subsequent dispersion and reactivity in the nanocomposite synthesis process. This careful control over the quantity of potassium permanganate underscores the importance of reaction conditions in obtaining high-quality graphene oxide for use in the SFGO-Nanocomposite synthesis.
In an embodiment, the method (100) culminates in the production of an antimicrobial nanocomposite material. This nanocomposite, synthesized according to the specified process, exhibits enhanced antimicrobial properties, making it suitable for a wide range of applications where microbial resistance is desired. The integration of strontium ferrite with graphene oxide not only imparts magnetic properties to the nanocomposite but also contributes to its antimicrobial efficacy. This multifunctional characteristic of the SFGO-Nanocomposite opens up new avenues for its application in biomedical devices, water purification systems, and coatings where antimicrobial properties are critical. The method's ability to produce a nanocomposite with both magnetic and antimicrobial properties exemplifies the innovative approach to material synthesis, addressing the needs of various industries.
In an embodiment, the present disclosure provides protocol to facilitate the synthesis of graphene oxide (GO) material through a modified procedure. Initially, graphene powder was combined with potassium nitrate and concentrated sulfuric acid in a 1000 milliliter round-bottom flask maintained at 0–5 °C with the aid of an ice bath. Continuous magnetic stirring ensured a uniform mixture to which potassium permanganate was gradually added. The reaction mixture turned into a dense dark paste after being transferred to another flask and stirred at 35 °C for an hour. Subsequently, the addition of distilled water followed by hydrogen peroxide led to the formation of a dark solution. The acidic mixture was neutralized to a pH of 7 by thorough washing with distilled water. This neutralized solution was sonicated at low speed to disperse the GO particles uniformly, creating a suspension. Centrifugation at 4000 RPM ensured the removal of unreacted materials, and the supernatant was discarded to isolate the GO, which was then left to air dry to form films. Further steps involved the dispersion of synthesized GO in ethylene glycol using ultrasonication, which was a lengthy process taking approximately 6-7 hours. Strontium nitrate, iron nitrate, and sodium hydroxide were then dissolved into this GO-ethylene glycol solution at an optimal temperature. After stirring for an hour, the resultant mixture was transferred to a Teflon-lined stainless-steel autoclave, subjected to a temperature of 200° C for six hours. Once the autoclave cooled down to room temperature, the precipitated black substance was collected, rinsed with ethanol to ensure purity, and then dried in a vacuum oven at 60 °C to acquire the final product. The process is characterized by its meticulous control over reaction conditions and temperatures, ensuring the production of high-quality GO and its nanocomposite.
In an embodiment, the Strontium Ferrite Graphene Oxide nanocomposite exhibits antimicrobial applications. The nanocomposite also can be used to provide solution to antibiotic resistance by providing a new method to combat resistant bacteria, thereby reducing reliance on conventional antibiotics. Furthermore, the composite can be coated on various implantable device such as pacemaker or joint replacement to prevent bacterial colonization and incidence of infections. Furthermore, nanocomposite can be used in wound care products such as in dressings for burns and chronic wounds, helping prevent infections, enhancing healing processes. Optionally, the nanocomposite can be used to improve water quality by eliminating pathogens in filtration systems. Additionally, nanocomposite can be incorporated into food packaging to extend shelf life and prevent microbial contamination, to enhance food safety and reducing waste.
FIG. 2 illustrates antibacterial efficacy of Strontium Ferrite Graphene Oxide Nanocomposite (SFGO-Nanocomposite) was evaluated using the disc diffusion method on various bacterial strains, in accordance with the embodiments of the present disclosure. The method employed Luria Bertani agar as the medium to culture Pseudomonas aeruginosa, Escherichia coli, Bacillus subtilis, and Staphylococcus aureus. Following incubation at 37°C overnight, the bacterial cultures were assessed for growth via spectrophotometry. Upon reaching the exponential phase, the cultures were immobilized on Luria Bertani agar medium, and films containing GO and SFGO-Nanocomposite were placed. As illustrated GO and SFGO-Nanocomposite were effective against all tested bacterial species, barring Bacillus, with zones of inhibition measuring 6 mm for Pseudomonas aeruginosa and 3-4 mm for both Escherichia coli and Staphylococcus aureus at varying concentrations. The absence of inhibition in Bacillus species suggests the involvement of complex factors related to peptidoglycan structure. The sharp edges of the nanocomposite may disrupt cell membranes by breaking hydrophobic interactions, hindering vital processes such as energy transfer and respiration. Additional mechanisms potentially contributing to the antibacterial action include the entrapment of bacteria by the nanocomposite, prevention of nutrient reflux by material covering the bacterial outer layer, and physical disruption by the nanocomposite edges. The size of the SFGO-Nanocomposite, similar to that of the bacteria tested, indicates that entrapment and membrane coverage could be plausible mechanisms of inhibition.
FIG. 3 illustrates antifungal effects of Strontium Ferrite Graphene Oxide Nanocomposite (SFGO-Nanocomposite) against Candida albicans and Candida tropicalis were assessed using the broth microdilution method, in accordance with the embodiments of the present disclosure. This method involved mixing the fungal cultures with a nutritional broth to a concentration of 105 CFU/ml and placing the solution in 96-well microtiter plates. Concentrations of the tested materials, GO and SFGO-Nanocomposite, ranged from 0.125 to 10 mg/ml. After incubation at 37°C for 24 hours, the antifungal activity was determined by measuring the optical density at 570 nm using an ELISA reader, with uninoculated broth serving as the control. The analysis of the results revealed that the antifungal activity of SFGO-Nanocomposite was superior to that of GO alone. When examining the effects on different strains, Candida albicans exhibited more pronounced inhibition compared to Candida tropicalis. The minimum inhibitory concentration (MIC) values were found to be 0.25 mg/ml for C. tropicalis and 0.125 mg/ml for C. albicans when treated with SFGO-Nanocomposite, indicating the potency of the nanocomposite against these fungal strains.
FIG. 4 illustrates the synthesis process of Graphene Oxide (GO), starting with graphite powder as the raw material, in accordance with the embodiments of the present disclosure. To oxidize the graphite and produce GO, a mixture of sulfuric acid and potassium nitrate is added to the graphite in a 500 ml beaker, which is then placed in an ice bath. Subsequently, potassium permanganate is slowly introduced while the mixture is stirred on a magnetic stirrer and maintained within the temperature range of approximately 308K-313K for an hour. Following this, hydrogen peroxide is added to the mixture, resulting in a dark paste within the beaker. This paste is diluted with water and the suspension is stirred at a higher temperature of 363K for 30 minutes. The resulting solution is then filtered and washed until the pH reaches 7 to remove any excess reactants. Finally, the GO is deposited as a thin layer on a glass plate and left to dry, after which it is subjected to ultrasonication to ensure homogeneity and proper dispersion of the material.
FIG. 5 outlines the subsequent steps to convert the Graphene Oxide into a Strontium Ferrite Graphene Oxide Nanocomposite, in accordance with the embodiments of the present disclosure. The GO is first dispersed in ethylene glycol, followed by the addition of iron(III) nitrate and strontium nitrate, which serve as precursors for the ferrite component. Sodium hydroxide is then introduced to initiate the precipitation of the ferrite particles. The mixture is stirred for an extended period, typically 6-7 hours, to ensure complete reaction and dissolution of the precursors in the ethylene glycol-GO mixture, after which it is stirred for an additional 60 minutes. The black precipitates formed are separated, washed with ethanol to remove any impurities, and dried. These steps lead to the formation of the desired nanocomposite product. To complete the process, the product is transferred into a Teflon-lined stainless-steel autoclave and subjected to a high-temperature treatment at 473K for six hours, which likely induces the crystallization of the ferrite component and embeds it firmly onto the GO matrix, thus forming the final nanocomposite.
Example embodiments herein have been described above with reference to block diagrams and flowchart illustrations of methods and apparatuses. It will be understood that each block of the block diagrams and flowchart illustrations, and combinations of blocks in the block diagrams and flowchart illustrations, respectively, can be implemented by various means including hardware, software, firmware, and a combination thereof. For example, in one embodiment, each block of the block diagrams and flowchart illustrations, and combinations of blocks in the block diagrams and flowchart illustrations can be implemented by computer program instructions. These computer program instructions may be loaded onto a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions which execute on the computer or other programmable data processing apparatus create means for implementing the functions specified in the flowchart block or blocks.
Operations in accordance with a variety of aspects of the disclosure is described above would not have to be performed in the precise order described. Rather, various steps can be handled in reverse order or simultaneously or not at all.
While several implementations have been described and illustrated herein, a variety of other means and/or structures for performing the function and/or obtaining the results and/or one or more of the advantages described herein may be utilized, and each of such variations and/or modifications is deemed to be within the scope of the implementations described herein. More generally, all parameters, dimensions, materials, and configurations described herein are meant to be exemplary and that the actual parameters, dimensions, materials, and/or configurations will depend upon the specific application or applications for which the teachings is/are used. Those skilled in the art will recognize, or be able to ascertain using no more than routine experimentation, many equivalents to the specific implementations described herein. It is, therefore, to be understood that the foregoing implementations are presented by way of example only and that, within the scope of the appended claims and equivalents thereto, implementations may be practiced otherwise than as specifically described and claimed. Implementations of the present disclosure are directed to each individual feature, system, article, material, kit, and/or method described herein. In addition, any combination of two or more such features, systems, articles, materials, kits, and/or methods, if such features, systems, articles, materials, kits, and/or methods are not mutually inconsistent, is included within the scope of the present disclosure.

Claims

I/We Claims

A method (100) for synthesizing a Strontium Ferrite Graphene Oxide Nanocomposite (SFGO-Nanocomposite), the method comprising:
ultrasonically dissolving synthesized graphene oxide in ethylene glycol;
mixing and stirring strontium nitrate, ferric nitrate, and sodium hydroxide to the graphene oxide-ethylene glycol solution;
transferring the solution into a Teflon-lined stainless-steel autoclave and heating the autoclave to a temperature for a pre-set time duration; and
cooling the autoclave to obtain a precipitate.
The method (100) of claim 1, wherein the graphene oxide is present in an amount of approximately 0.9 grams, the ethylene glycol is present in an amount of approximately 80 milliliters, the strontium nitrate is present in an amount of approximately 0.95 grams, the iron nitrate is present in an amount of approximately 1.72 grams, and the sodium hydroxide is present in an amount of approximately 1.5 grams.
The method (100) of claim 1, wherein the solution is stirred for approximately 50-70 minutes and the temperature of the autoclave is maintained at 200 °C for approximately 6 hours.
The method (100) of claim 1, further comprising washing the precipitate with ethanol and drying it in a vacuum oven at 60 °C to obtain the SFGO-Nanocomposite.
The method (100) of claim 1, further comprising performing the washing step multiple times to ensure the complete removal of byproducts and unreacted starting materials.
The method (100) of claim 1, wherein the synthesized graphene oxide (GO) is synthesize through:
creating a mixture comprising graphene powder, potassium nitrate, and concentrated sulfuric acid;
cooling the mixture in an ice bath while continuous stirring;
adding potassium permanganate to the mixture;
heating the mixture to approximately 35 °C while stirring to form a paste;
diluting the paste with distilled water and heating to 90 °C while stirring;
adding hydrogen peroxide dropwise to the mixture to obtain a dark reaction media;
neutralizing the pH of the reaction media with distilled water;
sonicating the pH neutralized reaction media;
centrifuging the sonicated reaction media to separate solid particles; and
drying the resultant material to obtain graphene oxide.
The method (100) of claim 1, wherein the graphene powder is present in an amount of two grams, the potassium nitrate is present in an amount of approximately two grams, and the concentrated sulfuric acid is present in an amount of approximately one hundred milliliters.
The method (100) of claim 1, wherein the potassium permanganate is added in an amount of approximately twelve grams.
An antimicrobial nanocomposite material produced by claim 1.

STRONTIUM FERRITE GRAPHENE OXIDE NANOCOMPOSITE BASED ANTIMICROBIAL COMPOSITION

The present disclosure provides a method for synthesizing a Strontium Ferrite Graphene Oxide Nanocomposite (SFGO-Nanocomposite) with antimicrobial composition. The method comprises ultrasonically dissolving synthesized graphene oxide in ethylene glycol, mixing and stirring strontium nitrate, ferric nitrate, and sodium hydroxide to the graphene oxide-ethylene glycol solution, transferring the solution into a Teflon-lined stainless-steel autoclave and heating the autoclave to a temperature for a pre-set time duration, and cooling the autoclave to obtain a precipitate.

, Claims:I/We Claims

A method (100) for synthesizing a Strontium Ferrite Graphene Oxide Nanocomposite (SFGO-Nanocomposite), the method comprising:
ultrasonically dissolving synthesized graphene oxide in ethylene glycol;
mixing and stirring strontium nitrate, ferric nitrate, and sodium hydroxide to the graphene oxide-ethylene glycol solution;
transferring the solution into a Teflon-lined stainless-steel autoclave and heating the autoclave to a temperature for a pre-set time duration; and
cooling the autoclave to obtain a precipitate.
The method (100) of claim 1, wherein the graphene oxide is present in an amount of approximately 0.9 grams, the ethylene glycol is present in an amount of approximately 80 milliliters, the strontium nitrate is present in an amount of approximately 0.95 grams, the iron nitrate is present in an amount of approximately 1.72 grams, and the sodium hydroxide is present in an amount of approximately 1.5 grams.
The method (100) of claim 1, wherein the solution is stirred for approximately 50-70 minutes and the temperature of the autoclave is maintained at 200 °C for approximately 6 hours.
The method (100) of claim 1, further comprising washing the precipitate with ethanol and drying it in a vacuum oven at 60 °C to obtain the SFGO-Nanocomposite.
The method (100) of claim 1, further comprising performing the washing step multiple times to ensure the complete removal of byproducts and unreacted starting materials.
The method (100) of claim 1, wherein the synthesized graphene oxide (GO) is synthesize through:
creating a mixture comprising graphene powder, potassium nitrate, and concentrated sulfuric acid;
cooling the mixture in an ice bath while continuous stirring;
adding potassium permanganate to the mixture;
heating the mixture to approximately 35 °C while stirring to form a paste;
diluting the paste with distilled water and heating to 90 °C while stirring;
adding hydrogen peroxide dropwise to the mixture to obtain a dark reaction media;
neutralizing the pH of the reaction media with distilled water;
sonicating the pH neutralized reaction media;
centrifuging the sonicated reaction media to separate solid particles; and
drying the resultant material to obtain graphene oxide.
The method (100) of claim 1, wherein the graphene powder is present in an amount of two grams, the potassium nitrate is present in an amount of approximately two grams, and the concentrated sulfuric acid is present in an amount of approximately one hundred milliliters.
The method (100) of claim 1, wherein the potassium permanganate is added in an amount of approximately twelve grams.
An antimicrobial nanocomposite material produced by claim 1.

STRONTIUM FERRITE GRAPHENE OXIDE NANOCOMPOSITE BASED ANTIMICROBIAL COMPOSITION