首页|Mechanochemical synthesis of Ag/TiO2@PANI nanocomposites for enhanced toluene photocatalytic degradation under near-ultraviolet light
Mechanochemical synthesis of Ag/TiO2@PANI nanocomposites for enhanced toluene photocatalytic degradation under near-ultraviolet light
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Mechanochemical synthesis of Ag/TiO2@PANI nanocomposites for enhanced toluene photocatalytic degradation under near-ultraviolet light
Photocatalytic oxidation technology is a promising green technology for degrading volatile organic compounds(VOCs)due to its non-toxic,environmentally friendly,energy-saving and affordable char-acteristics.In this paper,Ag/TiO2@PANI-MC with high stability and activity was synthesized by the mechanochemical method.The designed Ag/TiO2@PANI-MC were of high specific surface area,light absorption capacity and low recombination rate of electron-hole pairs,which was demonstrated by various characterizations.When applied in photocatalytic toluene oxidation,the conversion is 17％at 20 ℃ under 100 W high-pressure mercury lamp.This photocatalytic performance is with less temper-ature sensitivity and significantly improved compared with Ag/TiO2 or TiO2 catalysts.Furthermore,the reaction routine was also confirmed by gas chromatography-mass spectrometry and toluene was mineralized to CO2.More importantly,the Ag/TiO2@PANI-MC indicated good reusability after three cy-cles,which was verified by the Fourier transform-infrared spectroscopy comparison with fresh and used catalysts.Our work proves a potential way of constructing nanocomposites based on mechanochemical synthesis for enhanced toluene photocatalytic degradation.
Qiulian Zhu、Binghao Wang、Ying Mo、Shengfan Liao、Yinfei Chen、Hanfeng Lu
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Innovation Team of Air Pollution Control,Institute of Catalytic Reaction Engineering,College of Chemical Engineering,Zhejiang University of Technology,Hangzhou 310014,China
Department of Chemical and Biochemical Engineering,College of Chemistry and Chemical Engineering,Key Laboratory for Chemical Biology of Fujian Province,Xiamen University,Xiamen 361005,China
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