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

页码：2660 / 2664

页数：5

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