硅酸盐通报2011，Vol.30Issue(6)：1459-1463,5.
铁掺杂二氧化钛光催化降解硝基苯的动力学研究
Research on Photocatalysis Degradation Kinetics of Iron-doped TiO2 to Nitrobenzene
摘要
Abstract
Anatase iron-doped TiO2 photocatalyst is prepared by hydrothermal method. Kinetics of iron-doped TiO2 catalyzing nitrobenzene is researched by analysis of the influence of initial nitrobenzene concentration, catalyst amount, iron amount and Ph value on photochemical catalysis speed. The results show that the decolorization rate and observed degradation rate constant A: of nitrobenzene achieve maximum under the conditions;a initial nitrobenzene s concentration 50 mg/L (Ph =3) ,a catalyst dosage 1.2 g/L,an amount of iron-doped 0.05% (mole percentage) ,and an illumination time 2.5 h at room temperature. The photocatalytic process of nitrobenzene conforms to the rule of Langmuir-Hinshelwood kinetics,which follows the first-order reaction and the observed degradation rate constant k is 0.0028 min-1 .关键词
光催化/铁掺杂TiO2/降解/动力学/硝基苯Key words
photocatalysis/iron-doped TiO2/degradation/kinetics/nitrobenzene分类
资源环境引用本文复制引用
张一兵,汪华丽,谈军..铁掺杂二氧化钛光催化降解硝基苯的动力学研究[J].硅酸盐通报,2011,30(6):1459-1463,5.基金项目
教育部第四批高等学校特色专业建设点资助项目(TS11524) （TS11524）
江西省高校教学团队资助项目(赣教高字(2008)100) （赣教高字(2008）
