PHOTOCATALYTIC PROPERTIES OF Cr DOPED TiO2-SiO2 NANOSTRUCTURE THIN FILM

被引:0
作者
Eshaghi, Akbar [1 ]
Eshaghi, Ameneh [2 ]
机构
[1] Maleke Ashtar Univ Technol, Fac Mat Sci & Engn, Shahinshahr, Isfahan, Iran
[2] Islamic Azad Univ, Sari Branch, Sari, Iran
关键词
Sol-gel; Thin film; TiO2; doping; Photocatalysis; SUPER-HYDROPHILIC PROPERTY; TIO2; NANOPARTICLES;
D O I
暂无
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
Cr doped TiO2-SiO2 nanostructure thin film on glass substrates was prepared by a so/-gel dip coating method. X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and UV-vis spectrophotometer were used to characterize the structural, chemical and optical properties of the thin film. The XRD showed that thin films contain only anatase phase. FE-SEM images illustrated that anatase average crystallite size in the pure TiO2 and Cr doped TiO2-SiO2 thin films are 15 nm and 10 nm, respectively. XPS spectra confirmed the presence of Cr3+ in the thin film. UV-vis absorption spectra indicated that absorption edge in Cr doped TiO2-SiO2 thin film shifted to the visible light region. The photocatalytic results pointed that Cr doping in TiO2-SiO2 improved decoloring rate of methyl orange in comparison to pure TiO2 thin film.
引用
收藏
页码:135 / 138
页数:4
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共 21 条
[1]   The design and development of second-generation titanium oxide photocatalysts able to operate under visible light irradiation by applying a metal ion-implantation method [J].
Anpo, M ;
Kishiguchi, S ;
Ichihashi, Y ;
Takeuchi, M ;
Yamashita, H ;
Ikeue, K ;
Morin, B ;
Davidson, A ;
Che, M .
RESEARCH ON CHEMICAL INTERMEDIATES, 2001, 27 (4-5) :459-467
[2]   FTIR study of formic acid interaction with TiO2 and TiO2 doped with Pd and Cu in photocatalytic processes [J].
Araña, J ;
Cabo, CGI ;
Doña-Rodríguez, JM ;
González-Díaz, O ;
Heffera-Melián, JA ;
Pérez-Peña, J .
APPLIED SURFACE SCIENCE, 2004, 239 (01) :60-71
[3]   Preparation of TiO2 nanofilm via sol-gel process and its photocatalytic activity for degradation of methyl orange [J].
Chen, Lijuan ;
Tian, Jintao ;
Qiu, Huang ;
Yin, Yansheng ;
Wang, Xin ;
Dai, Jinhui ;
Wu, Pingwei ;
Wang, Aiping ;
Chu, Lei .
CERAMICS INTERNATIONAL, 2009, 35 (08) :3275-3280
[4]   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
[5]   Hydrogen production by photocatalytic water-splitting using Cr- or Fe-doped TiO2 composite thin films photocatalyst [J].
Dholam, R. ;
Patel, N. ;
Adami, M. ;
Miotello, A. .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2009, 34 (13) :5337-5346
[6]   Preparation and photo-induced superhydrophilicity of composite TiO2-SiO2-In2O3 thin film [J].
Eshaghi, A. ;
Pakshir, M. ;
Mozaffarinia, R. .
APPLIED SURFACE SCIENCE, 2010, 256 (23) :7062-7066
[7]   Optical and hydrophilic properties of Cr doped TiO2-SiO2 nanostructure thin film [J].
Eshaghi, Akbar ;
Eshaghi, Ameneh .
APPLIED SURFACE SCIENCE, 2012, 258 (07) :2464-2467
[8]   Photocatalytic properties of TiO2 sol-gel modified nanocomposite films [J].
Eshaghi, Akbar ;
Mozaffarinia, Reza ;
Pakshir, Mahmoud ;
Eshaghi, Ameneh .
CERAMICS INTERNATIONAL, 2011, 37 (01) :327-331
[9]   Effect of rare earth addition on super-hydrophilic property of TiO2/SiO2 composite film [J].
Guan, KS ;
Yin, YS .
MATERIALS CHEMISTRY AND PHYSICS, 2005, 92 (01) :10-15
[10]   Increasing surface hydrophilicity of titania thin films by doping [J].
Luca, D. ;
Mardare, D. ;
Iacomi, F. ;
Teodorescu, C. M. .
APPLIED SURFACE SCIENCE, 2006, 252 (18) :6122-6126