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Thin films of zinc oxide have been deposited onto glass/FTO substrates at optimized 400℃by using a chemical spray pyrolysis technique.Deposited films are characterized for their structural,morphological optical and photocatalytic activity by using XRD,an SEM,a UV-vis spectrophotometer,and a PEC single-cell reactor.Films are polycrystalline and have a hexagonal(wurtzite) crystal structure with c-axis(002) orientation growth perpendicular to the substrate surface.The observed direct band gap is about 3.22 eV for typical films prepared at 400℃.The photocatalytic activity of starch with a ZnO photocatalyst has been studied by using a novel photoelectrocatalytic process.
Thin films of zinc oxide have been deposited onto glass / FTO substrates at optimized 400 ° C by using a chemical spray pyrolysis technique. Deposited films are characterized for their structural, morphological optical and photocatalytic activity by using XRD, an SEM, a UV-vis spectrophotometer , and a PEC single-cell reactor. Films are polycrystalline and have a hexagonal (wurtzite) crystal structure with c-axis (002) orientation growth perpendicular to the substrate surface. Observed direct band gap is about 3.22 eV for typical films prepared at 400 ° C. The photocatalytic activity of starch with a ZnO photocatalyst has been studied by using a novel photoelectrocatalytic process.