首页 | 本学科首页   官方微博 | 高级检索  
     检索      

电场对TiO2纳米膜光催化性能的影响
引用本文:黄金球,唐超群,马新国,胡连峰,薛霞,周文斌.电场对TiO2纳米膜光催化性能的影响[J].催化学报,2006,27(9):783-786.
作者姓名:黄金球  唐超群  马新国  胡连峰  薛霞  周文斌
作者单位:华中科技大学物理系,湖北,武汉,430074
摘    要: 以泡沫镍为基材,采用溶胶-凝胶法制备了TiO2纳米膜光催化剂. 在自制外加电场光催化反应装置中,对催化剂施加一定的偏电压,研究了甲基橙溶液的光电催化降解反应,考察了偏压极性、阳极偏压和甲基橙初始溶液浓度等对降解效率的影响,并比较了光电催化与光催化、光解对甲基橙溶液降解的差异. 结果表明,外加阳极偏压形成的电场可以较大幅度提高甲基橙溶液的降解效率. 从半导体和量子力学理论出发探讨了电场促进光催化反应的作用机理.

关 键 词:电场  氧化钛  纳米膜  光催化  甲基橙  降解
文章编号:0253-9837(2006)09-0783-04
收稿时间:01 19 2006 12:00AM
修稿时间:2006-01-19

Effect of Electric Field on the Photocatalytic Performance of Titania Nano-Membrane
HUANG Jinqiu,TANG Chaoqun,MA Xinguo,HU Lianfeng,XUE Xia,ZHOU Wenbin.Effect of Electric Field on the Photocatalytic Performance of Titania Nano-Membrane[J].Chinese Journal of Catalysis,2006,27(9):783-786.
Authors:HUANG Jinqiu  TANG Chaoqun  MA Xinguo  HU Lianfeng  XUE Xia  ZHOU Wenbin
Institution:Department of Physics, Huazhong University of Science and Technology, Wuhan 430074 , Hubei, China
Abstract:A TiO_2 nano-membrane photocatalyst was prepared by the sol-gel method using foam-nickel as the radical material.In an in-house constructed photocatalytic reaction equipment with an electric field,the photo-electro-catalytic degradation of methyl orange solution was studied by applying a definite anode bias voltage on the catalyst.The effects of bias polarity,anode bias voltage,and initial concentration of methyl orange were investigated,and the differences between the photo-electro-catalysis and photocatalysis as well as photolysis were compared.The degradation efficiency of methyl orange can be greatly increased by applying the electric field.According to the theories of semiconductor and quantum mechanics,the photo-electro-catalytic reaction mechanism was discussed.
Keywords:electric field  titania  nano-membrane  photocatalysis  methyl orange  degradation
本文献已被 CNKI 维普 万方数据 等数据库收录!
点击此处可从《催化学报》浏览原始摘要信息
点击此处可从《催化学报》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号