Fe^(3+)掺杂对TiO_2光催化氧化甲醇的影响  

Influence of Fe^(3+) Doping on the Photocatalytic Activities of TiO_2 for Oxidation of Methanol

作　　者：霍莉[1] 丁克强[2] 常青云[2] 王庆飞[2] 童汝亭[2] 郝彦忠[3] 

机构地区：[1]保定师范专科学校化学系,河北保定071051 [2]河北师范大学化学学院,河北石家庄050016 [3]河北科技大学应用化学系,河北石家庄050018

出　　处：《河北师范大学学报（自然科学版）》2005年第4期372-375,共4页Journal of Hebei Normal University：Natural Science

基　　金：国家自然科学基金资助项目(20203008)

摘　　要：用改进的溶胶凝胶法制备了一系列Fe3+掺杂的TiO2光薄膜电极,并将其应用到甲醇光电氧化中.当掺杂Fe3+的质量分数为0.25%、焙烧温度为400℃时光催化氧化甲醇的效果最好,通过SEM,XRD,UV等手段的表征,进一步验证了掺杂对一定粒径范围内的纳米TiO2粒子有效.Fe^(3+) doped TiO_2 film electrodes have been applied to the photoelectrooxidation of methanol.It shows that an appropriated doping amount of Fe^(3+) can improve the photoelectrochemical activity.The photocurrent of methanol oxidation is best at 0.25?% of content and 400?℃,which is 2.2 times better than that of the un-doped TiO_2,and the burning temperature reduced 50?℃.The result shows that Fe^(3+) doping changed the structure of TiO_2.By XRD and SEM characterization,and Fe^(3+) doping is effective to improve the photocatalytic activity of TiO_2 for the nanoparticle in certain diameter extent.

关 键 词：TIO2 掺杂Fe^3+ 甲醇 光催化氧化 

分 类 号：O646.54[理学—物理化学]