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SO2-4/TiO2光催化降解邻硝基苯酚
引用本文:彭少洪,黄运凤,钟理,米杰,张渊明.SO2-4/TiO2光催化降解邻硝基苯酚[J].化学与生物工程,2006,23(5).
作者姓名:彭少洪  黄运凤  钟理  米杰  张渊明
作者单位:华南理工大学化工学院,广东,广州,510640;广州城市职业学院,广东,广州,510405;广州城市职业学院,广东,广州,510405;华南理工大学化工学院,广东,广州,510640;暨南大学化学系,广东,广州,510632
摘    要:采用硫酸溶液浸渍处理TiO2制得SO2-4/TiO2光催化剂.考察了光催化剂对邻硝基苯酚溶液的光催化行为.发现SO2-4/TiO2的光催化活性高于TiO2,浸渍液中H2SO4的浓度和催化剂的焙烧温度对SO2-4/TiO2的催化活性有一定的影响,H2SO4溶液的最佳浓度为0.5 mol·L-1,最佳焙烧温度为500℃.催化降解过程符合一级反应动力学规律.

关 键 词:SO2-4/TiO2  光催化  邻硝基苯酚

Photocatalytic Degradation of o-Nitrophenol by SO2-4/TiO2
PENG Shao-hong,HUANG Yun-feng,ZHONG Li,MI Jie,ZHANG Yuan-ming.Photocatalytic Degradation of o-Nitrophenol by SO2-4/TiO2[J].Chemistry & Bioengineering,2006,23(5).
Authors:PENG Shao-hong  HUANG Yun-feng  ZHONG Li  MI Jie  ZHANG Yuan-ming
Abstract:SO2-4/TiO2 photocatalysts were prepared in the presence of H2SO4.The photocatalytic action of o- nitrophenol were observed by photocatalysts.It was found that the photocatalytic activity of SO2-4/TiO2 was higher than that of TiO2.Concentration of H2SO4 and calcination temperature had effect on the catalytic activity of SO2-4/TiO2 and the best conditions were 0.5 mo1·L-1and 500℃ respectively.o-Nitrophenol degradation approximately followed the first-order reaction kinetics regularity.
Keywords:SO2-4/TiO2  photocatalysis  o-nitrophenol
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