B/Fe2O3共掺杂纳米TiO2可见光下催化性能研究

被引：2

作者：

刘宗耀 ^{[1
]}

李立清 ^{[2
]}

崔跃菊 ^{[1
]}

李桂萍 ^{[1
]}

机构：

[1] 机械工业第四设计研究院环保所

[2] 中南大学能源科学与工程学院

来源：

四川环境 | 2007年 / 06期

关键词：

溶胶-凝胶; B/Fe2O3; 共掺杂; 可见光; 光催化性能;

D O I：

10.14034/j.cnki.schj.2007.06.001

中图分类号：

O643.3 [催化];

学科分类号：

081705 ;

摘要：

采用溶胶-凝胶法制备了B/Fe2O3共掺杂TiO2复合光催化材料,并用XRD、荧光光谱(FS)和紫外可见漫反射光谱(DRS)对粉体进行了表征。XRD显示催化剂以锐钛矿存在的纳米颗粒,FS显示了颗粒的光谱特征,DRS显示掺杂B能极大提高催化剂可见光响应。以2,4-二氯苯酚(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。结果表明,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：28 / 31

页数：4

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