PHOTOCATALYTIC DECOMPOSITION OF ISOLAN BLACK BY TIO2, TIO2-SIO2 CORESHELL NANOCOMPOSITES

K. Balachandran, R. Venckatesh, Rajeshwari Sivaraj

Abstract: Anatase phase TiO2, TiO2-SiO2 (TS) photocatalyst were prepared by wet chemical technique. The synthesized nano particles were characterized by XRD, SEM-EDAX, TEM, UV and FTIR spectroscopy. The grain size of the TiO2 nanoparticles was found to be 24nm, while 7-10nm for TiO2-SiO2was calculated by using Scherrer’s formula. The TiO2-SiO2 core shell nanocomposites were identified by TEM analysis. Ti-O, Si-O bonds were confirmed by EDAX and FTIR. The photocatalytic decomposition of Isolan black was investigated. The photo catalytic activity of TiO2, enhanced by doping of SiO2 on TiO2. The important factors such as pH, Wt % of dyes and nanoparticles, intensity of light are also affect the photocatalytic action

Keywords: Nanocomposites, Photocatalyst, TEM, SEM-EDAX

DOI: https://doi.org/10.15623/ijret.2013.0209006