Preparation of an Ag-TiO2 photocatalyst coated on activated carbon by MOCVD

被引:64
作者
Zhang, XW [1 ]
Zhou, MH [1 ]
Lei, LC [1 ]
机构
[1] Zhejiang Univ, Inst Environm Engn, Hangzhou 310027, Peoples R China
基金
中国国家自然科学基金;
关键词
activated carbon; MOCVD; TiO2; ag; modification; photocatalysis;
D O I
10.1016/j.matchemphys.2004.10.058
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The metal organic chemical vapor deposition (MOCVD) method has been applied to the preparation of an Ag-TiO2 photocatalyst coated on activated carbon. The Ag-TiO2 coating was characterized by various experimental techniques. Ag particles (1 -5 nm) were coated on the surface of an anatase TiO2 layer. The photoactivity of the Ag-TiO2 photocatalyst with a proper Ag/Ti atomic ratio (0.0198-0.0595) was greatly higher than that of pure TiO2. The repeatability and strength test indicated that the Ag particles had a good adhesion on TiO2 (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:73 / 79
页数:7
相关论文
共 27 条
[1]  
[Anonymous], UNPUB
[2]   PHOTODECOLORIZATION OF METHYL-ORANGE USING SILVER ION MODIFIED TIO2 AS PHOTOCATALYST [J].
CHEN, LC ;
CHOU, TC .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 1994, 33 (06) :1436-1443
[3]   THE ROLE OF METAL-ION DOPANTS IN QUANTUM-SIZED TIO2 - CORRELATION BETWEEN PHOTOREACTIVITY AND CHARGE-CARRIER RECOMBINATION DYNAMICS [J].
CHOI, WY ;
TERMIN, A ;
HOFFMANN, MR .
JOURNAL OF PHYSICAL CHEMISTRY, 1994, 98 (51) :13669-13679
[4]   Synthesis of anatase TiO2 supported on porous solids by chemical vapor deposition [J].
Ding, Z ;
Hu, XJ ;
Yue, PL ;
Lu, GQ ;
Greenfield, PF .
CATALYSIS TODAY, 2001, 68 (1-3) :173-182
[5]   Novel silica gel supported TiO2 photocatalyst synthesized by CVD method [J].
Ding, Z ;
Hu, XJ ;
Lu, GQ ;
Yue, PL ;
Greenfield, PF .
LANGMUIR, 2000, 16 (15) :6216-6222
[6]   The influence of silver additives on titania photoactivity in the photooxidation of phenol [J].
Dobosz, A ;
Sobczynski, A .
WATER RESEARCH, 2003, 37 (07) :1489-1496
[7]  
Fujishima A, 1999, FUNDAMENTALS APPL
[8]  
Fujishima A., 2000, J PHOTOCH PHOTOBIO C, V1, P1, DOI DOI 10.1016/S1389-5567(00)00002-2
[9]   PHOTOCATALYTIC OXIDATION OF ORGANIC-MOLECULES AT TIO2 PARTICLES BY SUNLIGHT IN AERATED WATER [J].
GERISCHER, H ;
HELLER, A .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1992, 139 (01) :113-118
[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