Superhydrophilic Cu-doped TiO2 thin film for solar-driven photocatalysis

被引:58
作者
Wang, S. [1 ]
Meng, K. K. [1 ]
Zhao, L. [1 ]
Jiang, Q. [1 ]
Lian, J. S. [1 ]
机构
[1] Jilin Univ, Coll Mat Sci & Engn, Key Lab Automobile Mat, Minist Educ, Changchun 130025, Peoples R China
关键词
Photocatalysis; Thin films; Sol-gel; Cu-doping; Superhydrophilic surface; WETTABILITY CONVERSION; SURFACES; HYDROPHILICITY; PROPERTY; ANATASE;
D O I
10.1016/j.ceramint.2013.09.028
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Nanosized Cu-doped TiO2 film was prepared by the sol gel spin coating technique. XPS analysis showed that Cu atoms had been successfully doped into TiO2 lattice, which hence modified the surface chemical composition. As a result, the Cu-doped TiO2 thin film possessed a superhydrophilic surface with a water contact angle (WCA) only 5.1 degrees and exhibited excellent anti-fogging behavior. The Cu-doped TiO2 thin film also exhibited a much better photocatalytic activity than the reference TiO2 thin film; as evaluated by the degradation of 10 mg/L methylene blue (MB) solution under simulated solar-driven irradiation. (C) 2013 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
引用
收藏
页码:5107 / 5110
页数:4
相关论文
共 20 条
[1]   Super-hydrophobic surfaces: From natural to artificial [J].
Feng, L ;
Li, SH ;
Li, YS ;
Li, HJ ;
Zhang, LJ ;
Zhai, J ;
Song, YL ;
Liu, BQ ;
Jiang, L ;
Zhu, DB .
ADVANCED MATERIALS, 2002, 14 (24) :1857-1860
[2]  
GRUNIN VS, 1976, PHYS STATUS SOLIDI B, V77, P85, DOI 10.1002/pssb.2220770107
[3]   Enhancing the UV inducing hydrophilicity of TiO2 thin film by doping Fe ions [J].
Jiang, HB ;
Gao, L .
MATERIALS CHEMISTRY AND PHYSICS, 2003, 77 (03) :878-881
[4]   Superhydrophilicity and photocatalytic activity of sol-gel deposited nanosized titania thin films [J].
Kazemi, M. ;
Mohammadizadeh, M. R. .
THIN SOLID FILMS, 2011, 519 (19) :6432-6437
[5]   Superhydrophobic states [J].
Lafuma, A ;
Quéré, D .
NATURE MATERIALS, 2003, 2 (07) :457-460
[6]   PHOTOCATALYSIS ON TIO2 SURFACES - PRINCIPLES, MECHANISMS, AND SELECTED RESULTS [J].
LINSEBIGLER, AL ;
LU, GQ ;
YATES, JT .
CHEMICAL REVIEWS, 1995, 95 (03) :735-758
[7]   Superhydrophobic surfaces [J].
Ma, Minglin ;
Hill, Randal M. .
CURRENT OPINION IN COLLOID & INTERFACE SCIENCE, 2006, 11 (04) :193-202
[8]   A mechanism for enhanced hydrophilicity of silver nanoparticles modified TiO2 thin films deposited by RF magnetron sputtering [J].
Meng, Fanming ;
Sun, Zhaoqi .
APPLIED SURFACE SCIENCE, 2009, 255 (13-14) :6715-6720
[9]  
Nakamura M., SURFACE SCI, V507-510, P778
[10]   Biologically inspired surfaces: Broadening the scope of roughness [J].
Nosonovsky, Michael ;
Bhushan, Bharat .
ADVANCED FUNCTIONAL MATERIALS, 2008, 18 (06) :843-855