WE CLAIM:
1. A nanocomposite polymeric film to adsorb the CO and hydrocarbons from the vehicles exhaust smoke, said system comprising of:
A calcium acetate (1);
A copper acetate (2);
A sodium hydroxide (3); A distilled water (4);
An ethanol (5); and
A Polyvinyl alcohol (PVA) (6),
wherein the calcium acetate (1) and copper acetate (2) solutions were prepared and mixed with the sodium hydroxide (3); therein, two types of solutions were prepared, the first solution was prepared by mixing the calcium acetate (1) with the distilled water (4) (known as solution A) and the second solution has been prepared by mixing the copper acetate (2) with the distilled water (4) (known as solution B),
wherein solution A is mixed dropwise with the B solution, continuously stirred for one hour, then the sodium hydroxide (3) is added to the mixture of solution A and solution B therein, the solution is initially green, and after 2 hours, the solution changes to dark black-brown colour,
wherein the resulting precipitate is washed to remove the residual salt with the distilled water (4) and the ethanol (5), and the resulting colloidal gel is dried at 80°C for 24 hours in a conventional hotplate, and then the obtained sample is crushed and calcinated at 300°C for 5 hours to get high crystalline metal oxide nanocomposites, and
wherein the prepared sample was made into a film by blending CaO-CuO-CU2O with the polyvinyl alcohol (PVA) (6) mixed together with the help of a magnetic stirrer for 2 hours and dried for 24 hours to form the polymeric film, which absorbs 56.20% of carbon monoxide and the hydrocarbons adsorbed 296 ppm.
2. The nanocomposite polymeric film to adsorb the CO and hydrocarbons from the vehicles exhaust smoke as claimed in claim I, wherein said nanocomposite polymeric film adsorb the carbon monoxide and hydrocarbons from the exhaust smoke from vehicles, which can be used as emission reducing/controlling product of CO and hydrocarbons in mentioned gas emitting area.
3. The nanocomposite polymeric film to adsorb the CO and hydrocarbons from the vehicles exhaust smoke as claimed in claim 1, wherein the combination of composite and crystal growth only obtained at a specific calcination temperature (300°C) using the calcium acetate (1) and the copper acetate (2) as the precursor.
4. The nanocomposite polymeric film to adsorb the CO and hydrocarbons from the -vehicles exhaust smoke as claimed in claim 1, wherein the nanocomposite polymeric film prepared with CaO-CuO-Cu20 nanocomposite of 1 gram and with the addition of polyvinyl alcohol (PVA) (6) of 10 grams in 100ml distilled water and dried, which results in high CO adsorption.