Kinetics of Photocatalytic Degradation of Gaseous Organic Compounds on Modified TiO_2/AC Composite Photocatalyst  

气相有机化合物在改性TiO_2/AC复合光催化剂上的光催化降解动力学(英文)

作　　者：杨青山 廖永进 毛玲玲 

机构地区：[1]Guangzhou Unisun Power Technology Co.,Ltd. [2]Guangdong Power Test and Research Institute [3]Guangdong Inspection&Quarantine Technology Center

出　　处：《Chinese Journal of Chemical Engineering》2012年第3期572-576,共5页中国化学工程学报（英文版）

基　　金：Supported by the Natural Science Foundation of Guangdong Province,China(8151064101000049)

摘　　要：This study is focused on the kinetic characteristics of photocatalytic degradation of gaseous organic compounds on modified titanium dioxide/activated carbon composite photocatalyst(MTA).The MTA,which co-doping with iron(Fe) and nitrogen(N),was synthesized by a sol-gel method,and its photocatalytic performance was investigated under different reaction conditions.The experimental data obtained were tested by the zero,first and second order kinetic model,and the factors affecting the kinetic model were analyzed.It was clearly demonstrated that the experimental data of toluene and acetone on MTA fit quite well with second order kinetic model equation,but the experimental data of formaldehyde fits well with zero order kinetic model equation.This study is focused on the kinetic characteristics of photocatalytic degradation of gaseous organic compounds on modified titanium dioxide/activated carbon composite photocatalyst （MTA）. The MTA, which co-doping with iron （Fe） and nitrogen （N）, was synthesized by a sol-gel method, and its photocatalytic performance was investigated under different reaction conditions. The experimental data obtained were tested by the zero, first and second order kinetic model, and the factors affecting the kinetic model were analyzed. It was clearly demonstrated that the experimental data of toluene and acetone on MTA fit quite well with second order kinetic model equation, but the experimental data of formaldehyde fits well with zero order kinetic model equation.

关 键 词：titanium dioxide activated carbon PHOTOCATALYST kinetic model 

分 类 号：O643.32[理学—物理化学]