Visible light catalysis of rhodamine B using nanostructured Fe2O3, TiO2 and TiO2/Fe2O3 thin films

被引：87
作者：
Mahadik, M. A. [1 ]
Shinde, S. S. [1 ]
Mohite, V. S. [1 ]
Kumbhar, S. S. [1 ]
Moholkar, A. V. [1 ]
Rajpure, K. Y. [1 ]
Ganesan, V. [2 ]
Nayak, J. [2 ]
Barman, S. R. [2 ]
Bhosale, C. H. [1 ]
机构：
[1] Shivaji Univ, Dept Phys, Electrochem Mat Lab, Kolhapur 416004, Maharashtra, India
[2] UGC DAE Consortium Sci Res, Indore 452017, Madhya Pradesh, India
来源：
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY | 2014年 / 133卷
关键词：
TiO2/Fe2O3 thin films; Photocatalysis; Rhodamine B; PHOTOACTIVITY ENHANCEMENT; PHOTOCATALYTIC PROPERTIES; ZINC-OXIDE; PERFORMANCE; IMPROVEMENT; INHIBITION; OXIDATION; ACID;
D O I：
10.1016/j.jphotobiol.2014.01.017
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
The Fe2O3, TiO2 and TiO2/Fe2O3 composite films are deposited using spray pyrolysis method onto glass and FTO coated substrates. The structural, morphological, optical and photocatalytic properties of Fe2O3, TiO2 and TiO2/Fe2O3 thin films are studied. XRD analysis confirms that films are polycrystalline with rhombohedral and tetragonal crystal structures for Fe2O3 and TiO2 respectively. The photocatalytic activity was tested for the degradation of Rhrodamine B (Rh B) in aqueous medium. The rate constant (-k) was evaluated as a function of the initial concentration of species. Substantial reduction in concentrations of organic species was observed from COD and TOC analysis. Photocatalytic degradation effect is relatively higher in case of the TiO2/Fe2O3 than TiO2 and Fe2O3 thin film photoelectrodes in the degradation of Rh B and 98% removal efficiency of Rh B is obtained after 20 min. The photocatalytic experimental results indicate that TiO2/alpha-Fe2O3 photoelectrode is promising material for removing of water pollutants. (C) 2014 Elsevier B.V. All rights reserved.
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收藏
页码：90 / 98
页数：9
相关论文
共 31 条
[1]   Thickness dependent activity of nanostructured TiO2/α-Fe2O3 photocatalyst thin films [J].
Akhavan, O. .
APPLIED SURFACE SCIENCE, 2010, 257 (05) :1724-1728
[2]   Influence of preparation conditions on the dispersion parameters of sprayed iron oxide thin films [J].
Akl, Alaa A. .
APPLIED SURFACE SCIENCE, 2010, 256 (24) :7496-7503
[3]   Advanced oxidation processes (AOP) for water purification and recovery [J].
Andreozzi, R ;
Caprio, V ;
Insola, A ;
Marotta, R .
CATALYSIS TODAY, 1999, 53 (01) :51-59
[4]   Preparation and characterization of Fe2O3-TiO2 thin films on glass substrate for photocatalytic applications [J].
Celik, E ;
Yildiz, AY ;
Azem, NFA ;
Tanoglu, M ;
Toparli, M ;
Emrullahoglu, OF ;
Ozdemir, I .
MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 2006, 129 (1-3) :193-199
[5]   Influence of Feature Size, Film Thickness, and Silicon Doping on the Performance of Nanostructured Hematite Photoanodes for Solar Water Splitting [J].
Cesar, Ilkay ;
Sivula, Kevin ;
Kay, Andreas ;
Zboril, Radek ;
Graetzel, Michael .
JOURNAL OF PHYSICAL CHEMISTRY C, 2009, 113 (02) :772-782
[6]   Enhanced photoelectrocatalytic performance of Zn-doped WO3 photocatalysts for nitrite ions degradation under visible light [J].
Cheng, X. F. ;
Leng, W. H. ;
Liu, D. P. ;
Zhang, J. Q. ;
Cao, C. N. .
CHEMOSPHERE, 2007, 68 (10) :1976-1984
[7]  
Cheng Y., 2012, INT J PHOTOENERGY, V2012, P1
[8]   FT-IR, XPS and PEC characterization of spray deposited hematite thin films [J].
Desai, JD ;
Pathan, HM ;
Min, SK ;
Jung, KD ;
Joo, OS .
APPLIED SURFACE SCIENCE, 2005, 252 (05) :1870-1875
[9]   Structural, optical and electrical characterization of spray-deposited TiO2 thin films [J].
Deshmukh, H. P. ;
Shinde, P. S. ;
Patil, P. S. .
MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 2006, 130 (1-3) :220-227
[10]   Development of surface coating technology of TiO2 powder and improvement of photocatalytic activity by surface modification [J].
Kim, TK ;
Lee, MN ;
Lee, SH ;
Park, YC ;
Jung, CK ;
Boo, JH .
THIN SOLID FILMS, 2005, 475 (1-2) :171-177
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