Preparation of Ag-doped mesoporous titania and its enhanced photocatalytic activity under UV light irradiation

被引：42
|
作者：
Ao, Yanhui [1 ,2 ,3 ,4 ]
Xu, Jingjing [1 ,2 ,3 ,4 ]
Fu, Degang [1 ,2 ,3 ,4 ]
Yuan, Chunwei [1 ,2 ]
机构：
[1] Southeast Univ, Sch Chem & Chem Engn, Nanjing 210096, Peoples R China
[2] Southeast Univ, State Key Lab Bioelect, Nanjing 210096, Peoples R China
[3] Southeast Univ, Res Inst, Key Lab Environm & Biosafety Suzhou, Suzhou 215123, Peoples R China
[4] Jiangsu Lab Biomat & Devices, Nanjing 210096, Peoples R China
来源：
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 2008年 / 69卷 / 11期
基金：
中国国家自然科学基金;
关键词：
D O I：
10.1016/j.jpcs.2008.06.100
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Ag-doped mesoporous titania was synthesized via a combined sol-gel process with surfactant-assisted templating method using cetyltrimethyl ammonium bromide (CTAB) as the structure-directing agent. The prepared samples were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), N-2 adsorption-desorption measurements (BET) and X-Fay photoelectron spectroscopy (XPS). The photocatalytic activity of the samples was determined by degradation of model contaminant water, of phenol in aqueous solution. Results showed that different amounts of Ag-doping had different effects on the crystal phase structure and photocatalytic activity of the samples. The sample with 0.5% Ag doping shows the highest photocatalytic activity, which is 2.3 times that of the undoped mesoporous titania. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2660 / 2664
页数：5
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