SYNTHESIS, PHYSICOCHEMICAL CHARACTERIZATION AND PHOTOCATALYTIC DEGRADATION STUDY OF W, N-CODOPED ZnO OVER REACTIVE BLUE 160 UNDER NATURAL SUN LIGHT IRRADIATION Authors: E. Krishnan , M. RAVISHANKAR*, M. SIVAKUMAR AND S. SIVAKUMAR
ABSTRACT
The photocatalytic activity of W, N-codoped ZnO was investigated by the degradation of
Reactive Blue 160 (RB 160) under natural sunlight irradiation. A series of W, N-codoped TiO2
photocatalyst with different mole ratio (0.02 mol%, 0.03 mol%, 0.04 mol%, 0.05 mol%, and 0.06
mol%) were prepared sol-gel technique. The pure ZnO was low photocatalytic activity, due to its
poor surface properties, gets photocorrosion and low utilization of visible light. These problems
were minimised by adding dopant (W and N) with ZnO. The photocatalytic activity of W, Ncodoped
ZnO was remarkably higher than that of the as-prepared sample like pure TiO2. The
highlighted photocatalytic properties of W, N-codoped ZnO were confirmed by XRD, SEM and
UV-DRS. W, N-codoped TiO2 photocatalyst has photostability and long durability.
Keywords: W, N-Codoped TiO2, sol-gel route, Photocatalytic Degradation, Reactive Black 5
and Natural Sun Light Publication date: 01/05/21 https://ijbpas.com/pdf/2021/May/MS_IJBPAS_2021_5070.pdfDownload PDFhttps://doi.org/10.31032/IJBPAS/2021/10.5.5070