重庆大学学报：自然科学版2012，Vol.35Issue(3)：127-132,6.
不同制备方法对Fe~（3＋）/TiO_2光催化剂活性的影响
Effects of different preparation methods on photocatalytic activity of Fe~（3＋）/TiO_2
摘要
Abstract
Two kinds of Fe3＋/TiO2 catalysts are prepared by Sol-gel method and hydrolysis method.XRD,UV-Vis,BET,curves of N2 adsorption-desorption and 3D fluorescence are used to analyze the structures and properties of the catalysts,and their photocatalytic activities are investigated through degradation of DBP.The results show that two kinds of catalysts are anatase TiO2.The band gap of the Fe3＋/TiO2 catalysts prepared by Sol-gel and hydrolysis method are 2.6 eV and 3.2 eV respectively,and the former with an absorption edge at 477 nm,while the latter with no redshift.The curves of N2 adsorption-desorption of the Fe3＋/TiO2 catalysts prepared by Sol-gel and hydrolysis method are type Ⅳ and Ⅴ,their BET specific surface areas are 57.03 m2/g and 10.94 m2/g,and the hysteresis loop of the latter shifts to the high relative pressure region with a smaller pore volume and a bigger average pore diameter.Two kinds of catalysts can reduce photoluminescence properties of TiO2 at various degrees,and the catalyst prepared by Sol-gel method shows a weaker photoluminescence property.The results of degradation experiment show the degradation rate of DBP by catalyst prepared by Sol-gel method and hydrolysis method are 60.53% and 31.83% respectively after 2 h.关键词
光催化/二氧化钛/掺杂/邻苯二甲酸二丁酯Key words
photocatalysis/titanium dioxide/dope/DBP分类
资源环境引用本文复制引用
吉芳英,何莉,赵易,徐璇,王晓东..不同制备方法对Fe~（3＋）/TiO_2光催化剂活性的影响[J].重庆大学学报：自然科学版,2012,35(3):127-132,6.基金项目
教育部博士点基金项目（20070611009）,教育部科技创新工程重大项目培育项目 （）
重庆大学大型仪器设备开放基金资助项目 （）
