期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2019
卷号：10
期号：5
页码：1-11
出版社：University of Mohammed Premier Oujda
摘要：TiO2 and Ag doped TiO2 were synthesized by sol gel method. Morphology of as synthesized
Ag doped TiO2 nano catalyst was investigated using scanning election microscopy (SEM),
Electron dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD). The
photocatalytic activity of Ag doped TiO2 nano catalyst was investigated by degradation of
Eosin-Y solution under visible light radiation. The effects of various experimental
parameters such as the Eosin-Y concentration, catalyst dose, and pH on the photocatalytic
degradation were investigated. The kinetics study shows that the reaction follows first order
kinetics. Among the different amounts of dopant that like 1, 2, and 4wt% Ag-doped with
TiO2 nanocatalyst. It was observed that 4 wt % Ag doped TiO2 shows highest degradation
with visible light radiation for Eosin-Y solution than pure TiO2 nano catalyst. The particle
size, morphology and separation of photo induced electron–hole pair are the main factors
which influence photocatalytic activity. The degradation by-products formed during the
complete degradation process were qualitatively identified by liquid chromatography-mass
spectrometry (HR-LCMS) and a detailed degradation pathway has been proposed.
关键词：Eosinp-Y;
TiO2 and Ag- doped
TiO2;
Photocatalysis;
HR-LCMS;
Kinetic Study
