Synthesis of C,N,S-tridoped mesoporous titania with enhanced visible light-induced photocatalytic activity

被引：33
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, Key Lab Environm & Biosafety Suzhou, Res Inst, Suzhou 215123, Peoples R China
[4] Jiangsu Lab Biomat & Devices, Nanjing 210096, Peoples R China
来源：
MICROPOROUS AND MESOPOROUS MATERIALS | 2009年 / 122卷 / 1-3期
基金：
中国国家自然科学基金;
关键词：
Mesoporous structure; Titania; C; N; S-tridoped; Photocatalysis; DOPED TIO2 FILM; TEMPLATING METHOD; SOLAR LIGHT; NITROGEN; NANOPARTICLES; DEGRADATION; TEMPERATURE; EVAPORATION; ADSORPTION; WALLS;
D O I：
10.1016/j.micromeso.2008.11.010
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
C,N,S-tridoped mesoporous titania was synthesized via a combined sol-gel process with surfactant-assisted templating method using cetyltrimethylammonium bromide (CTAB) as the structure-directing agent. The prepared samples were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), diffuse reflectance spectra (DRS), N-2 adsorption-desorption measurements (BET) and Fourier transform infrared spectroscopy (FT-IR). The photocatalytic activity was evaluated by the photocatalytic degradation of Reactive Brilliant Red X-3B in aqueous solution. The results showed that the prepared titania was mesoporous structured and exhibited stronger absorption in the visible light region with red shift in the absorption edge. The prepared C,N,S-tridoped mesoporous titanias showed high photocatalytic activity under visible light irradiation. The high activity can be attributed to the synergetic effects of large surface area, red shift in absorption edge, strong absorption in visible light region and mixed phase structures of the C,N,S-tridoped mesoporous titania. (C) 2008 Elsevier Inc. All rights reserved.
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页码：1 / 6
页数：6
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