Fabrication and characterization of zinc oxide-decorated titania nanoporous by electrochemical anodizing-chemical bath deposition techniques: visible light active photocatalysts with good stability

被引:50
作者
Momeni, Mohamad Mohsen [1 ]
Ghayeb, Yousef [1 ]
机构
[1] Isfahan Univ Technol, Dept Chem, Esfahan 8415683111, Iran
关键词
Nanoporous; ZnO; Titania; Visible light; Photocatalysts; TIO2 NANOTUBE ARRAYS; DEGRADATION; COMPOSITE; PHOTOANODES; PROTECTION; CONSTRUCTION; ANODIZATION; PERFORMANCE; OXIDATION; GROWTH;
D O I
10.1007/s13738-015-0757-y
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
ZnO-decorated titania nanoporous (ZnO/TNPs) nanocomposites were fabricated by electrochemical anodizing-chemical bath deposition and characterized by SEM, EDX and XRD. Results showed that titania nanoporous with an inner average pore diameter of 80-110 nm and a length of 40 mu m are grown on titanium foils. ZnO is decorated on titania nanoporous by a chemical bath deposition technique. Diffuse reflectance spectra showed an increase in the visible absorption relative to bare titania nanoporous. The ZnO was successfully decorated on the titania nanoporous, which enhanced the photocatalytic activity of the ZnO/TNPs, as indicated by the efficient removal of methylene blue. The resultant ZnO decorated titania nanoporous showed better photocatalytic activity than the bare titania under visible light radiation. Such photocatalyst benefits from the capability of high specific surface and the direct conduction path through the aligned nanoporous. This inexpensive photocatalyst prepared free of noble metals, showed enhanced high photocatalytic activity with good stability.
引用
收藏
页码:481 / 488
页数:8
相关论文
共 46 条
[1]   A Facile Approach to Fabrication of ZnO-TiO2 Hollow Spheres [J].
Agrawal, Mukesh ;
Gupta, Smrati ;
Pich, Andrij ;
Zafeiropoulos, Nikolaos E. ;
Stamm, Manfred .
CHEMISTRY OF MATERIALS, 2009, 21 (21) :5343-5348
[2]   Synthesis and characterization of titania nanostructures on glass by Al anodization and sol-gel process [J].
Chu, SZ ;
Wada, K ;
Inoue, S ;
Todoroki, S .
CHEMISTRY OF MATERIALS, 2002, 14 (01) :266-272
[3]  
Greene LE, 2007, J PHYS CHEM C, V111, P18451, DOI [10.1021/jp077593l, 10.1021/jp0775931]
[4]   Heteroepitaxial growth of ZnO branches selectively on TiO2 nanorod tips with improved light harvesting performance [J].
Gu, Feng ;
Gai, Lili ;
Shao, Wei ;
Li, Chunzhong ;
Schmidt-Mende, Lukas .
CHEMICAL COMMUNICATIONS, 2011, 47 (29) :8400-8402
[5]   Effect of Zn nanoparticles morphology on the photoelectrochemical properties of Zn/TiO2NTs nanocomposites [J].
He, Huichao ;
Xiao, Peng ;
Zhang, Yunhuai ;
Jia, Yichao ;
Yang, Yannan ;
Qiao, Zhengyang .
JOURNAL OF ALLOYS AND COMPOUNDS, 2012, 522 :63-68
[6]   Heterogeneous photocatalysis: State of the art and present applications [J].
Herrmann, JM .
TOPICS IN CATALYSIS, 2005, 34 (1-4) :49-65
[7]   Platinum nanoparticle-decorated TiO2 nanotube arrays as new highly active and non-poisoning catalyst for photo-electrochemical oxidation of galactose [J].
Hosseini, Mir Ghasem ;
Momeni, Mohamad Mohsen .
APPLIED CATALYSIS A-GENERAL, 2012, 427 :35-42
[8]   Fabrication of Au-Nanoparticle/TiO2-Nanotubes Electrodes Using Electrochemical Methods and Their Application for Electrocatalytic Oxidation of Hydroquinone [J].
Hosseini, Mir Ghasem ;
Momeni, Mohamad Mohsen ;
Faraji, Masoud .
ELECTROANALYSIS, 2011, 23 (07) :1654-1662
[9]   Nanoforest of Hydrothermally Grown Hierarchical ZnO Nanowires for a High Efficiency Dye-Sensitized Solar Cell [J].
Ko, Seung Hwan ;
Lee, Daeho ;
Kang, Hyun Wook ;
Nam, Koo Hyun ;
Yeo, Joon Yeob ;
Hong, Suk Joon ;
Grigoropoulos, Costas P. ;
Sung, Hyung Jin .
NANO LETTERS, 2011, 11 (02) :666-671
[10]   Photocatalytic transformation of pesticides in aqueous titanium dioxide suspensions using artificial and solar light: intermediates and degradation pathways [J].
Konstantinou, IK ;
Albanis, TA .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2003, 42 (04) :319-335