One-step preparation of silver and indium oxide co-doped TiO2 photocatalyst for the degradation of rhodamine B

被引：83

作者：

Yang, Xia ^{[1
]}

Xu, Leilei ^{[1
]}

Yu, Xiaodan ^{[1
]}

Guo, Yihang ^{[1
]}

机构：

[1] NE Normal Univ, Sch Chem, Changchun 130024, Peoples R China

来源：

CATALYSIS COMMUNICATIONS | 2008年 / 9卷 / 06期

关键词：

silver; indium oxide; co-doped TiO2; photocatalysis; sol-gel; rhodamine B;

D O I：

10.1016/j.catcom.2007.11.008

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A novel co-doped TiO2 photocatalyst, Ag/InM-TiO2, was developed through a one-step sol-gel process followed by a solvent thermal treatment in the presence of triblock copolymer surfactant. The product showed very small particle size (12 +/- 2 nm) with metallic Ag clusters well-distributed on the surface of the product, at the same time, the product was mainly in the anatase phase with high crystallinity. The photocatalytic activity of Ag/In2O3-TiO2 was evaluated by the degradation of an aqueous solution of dye rhodamine B(RB), and the obtained significantly high photocatalytic activity can be ascribed to the simultaneous effects of doped noble metal Ag by acting as electron traps and semiconductor In2O3 as narrow band gap sensitizer. In addition, the unique morphology and nanosize of the product also played an important role in this enhanced photocatalytic activity. (C) 2007 Published by Elsevier B.V.

引用

页码：1224 / 1229

页数：6

共 26 条

[1] Semiconductor clusters, nanocrystals, and quantum dots [J].

Alivisatos, AP .

SCIENCE, 1996, 271 (5251) :933-937

[2]

[Anonymous], 1992, HDB XRAY PHOTOELECTR

[3] Substrate development for surface-enhanced Raman study of photocatalytic degradation processes: Congo red over silver modified titanium dioxide films [J].

Bonancea, Carlos E. ;

Nascimento, Gustavo M. do ;

de Souza, Michele L. ;

Temperini, Marcia L. A. ;

Corio, Paola .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2006, 69 (1-2) :34-42

[4] Preparation of highly uniform Ag/TiO2 and Au/TiO2 supported nanoparticle catalysts by photodeposition [J].

Chan, SC ;

Barteau, MA .

LANGMUIR, 2005, 21 (12) :5588-5595

[5] Preparation, photocatalytic activity, and mechanism of Nano-TiO2 co-doped with nitrogen and iron (III) [J].

Cong, Ye ;

Zhang, Jinlong ;

Chen, Feng ;

Anpo, Masakazu ;

He, Dannong .

JOURNAL OF PHYSICAL CHEMISTRY C, 2007, 111 (28) :10618-10623

[6] Photocatalytic synthesis of silver nanoparticles stabilized by TiO2 nanorods:: A semiconductor/metal nanocomposite in homogeneous nonpolar solution [J].

Cozzoli, PD ;

Comparelli, R ;

Fanizza, E ;

Curri, ML ;

Agostiano, A ;

Laub, D .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (12) :3868-3879

[7] Low temperature selective oxidation of ammonia to nitrogen on silver-based catalysts [J].

Gang, L ;

Anderson, BG ;

van Grondelle, J ;

van Santen, RA .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2003, 40 (02) :101-110

[8]

GE L, 2006, CHEM, P258

[9] Silver and gold nanocluster catalyzed reduction of methylene blue by arsine in a micellar medium [J].

Ghosh, SK ;

Kundu, S ;

Mandal, M ;

Pal, T .

LANGMUIR, 2002, 18 (23) :8756-8760

[10] Influence of silver doping on the photocatalytic activity of titania films [J].

He, C ;

Yu, Y ;

Hu, XF ;

Larbot, A .

APPLIED SURFACE SCIENCE, 2002, 200 (1-4) :239-247

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