Preparation of the g-Al(2)O(3)/PANI Nanocomposite via Enzymatic Polymerization

Peroxidase-catalyzed template-guided polymerization of aniline in the presence of g- alumina nanosheet (NS) particles have been carried out in aqueous media and g-Al(2)O(3)/PANI nanocomposite was obtained. The polymerization of aniline occurred in aqueous solution in the presence of SPS (sulfonated polystyrene) as a template and SDS (sodium dodecyl sulfate) as a surfactant. Both obtained nanocomposites were comparable by SEM images. It was demonstrated that the g-Al(2)O(3) NS/PANI-SPS nanocomposite has higher conductivity and the g-Al(2)O(3) NS/PANI-SDS nanocomposite has higher void areas. The higher conductivity ofg-Al(2)O(3) NS/PANI-SPS nanocomposite is attributed to the higher coated areas of g-Al(2)O(3) NS during polymerization in comparison with g-Al(2)O(3) NS/PANI-SDS which are not coated efficiently as the former. The FT-IR studies showed that the g-Al(2)O(3) NS/PANI nanocomposite was formed by interaction of the polyaniline (PANI) and g-Al(2)O(3) NS. FTIR also showed that the amount of PANI in g-Al(2)O(3) NS/PANI-SPS is more than in g-Al(2)O(3) NS/PANI-SDS.