B/Fe2O3共掺杂纳米TiO2可见光下的催化性能

被引：15

作者：

李立清 ^{[1
]}

刘宗耀 ^{[2
]}

唐新村 ^{[3
]}

唐琳 ^{[2
]}

郭三霞 ^{[2
]}

李海龙 ^{[2
]}

何益波 ^{[2
]}

机构：

[1] 中南大学能源科学与工程学院

[2] 湖南大学环境科学与工程学院

[3] 中南大学化学与化工学院

来源：

中国有色金属学报 | 2006年 / 12期

关键词：

纳米TiO2; B/Fe2O3; 溶胶凝胶; 共掺杂; 可见光; 光催化性能;

D O I：

10.19476/j.ysxb.1004.0609.2006.12.018

中图分类号：

O643.32 [催化反应]; O644.1 [光化学];

学科分类号：

摘要：

采用溶胶凝胶法制备B/Fe2O3共掺杂TiO2复合光催化材料,并用X射线衍射仪(XRD)、扫描电镜(TEM)和紫外可见漫反射光谱(DRS)对粉体进行表征。结果表明:催化剂以锐钛矿存在的纳米颗粒,直观地显示了物质的形貌,掺杂B能极大提高催化剂的可见光响应。以二氯苯酚(DCP)为降解物质,在紫外和可见光下分别研究了复合催化剂的光催化活性。掺杂B能使吸收光谱红移至可见光区,而进一步掺杂Fe2O3大大提高了催化剂的活性。

引用

页码：2098 / 2103

页数：6

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