Preparation and Photocatalytic Properties of TiO2-CoFe2O4 Magnetic Composite Photocatalyst

被引：2

作者：

Sun, Dongfeng ^{[1
]}

Xu, Zhijian ^{[1
]}

Wang, Kai ^{[1
]}

Dong, Guifu ^{[1
]}

Zhang, Xiuling ^{[1
]}

机构：

[1] Dalian Univ, Coll Phys Sci & Technol, Dalian 116622, Peoples R China

来源：

CHEMICAL ENGINEERING AND MATERIAL PROPERTIES, PTS 1 AND 2 | 2012年 / 391-392卷

关键词：

Photocatalyst; Magnetic; TiO2; Composite material; DEPENDENCE;

D O I：

10.4028/www.scientific.net/AMR.391-392.1488

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A TiO2-CoFe2O4 composite photocatalyst was prepared by one-step method with ultrasound technique using TiCl4, trivalent iron salt and divalent cobalt salts as precursors. The properties of the sample were investigated by XRD, TEM and VSM techniques. The photocatalyst activity was evaluated by using methyl orange aqueous solution as the model contaminant under the sunlight. The results showed that the TiO2-CoFe2O4 composite photocatalyst exhibited good magnetic properties and the saturation magnetization was 212Gs. The microstructure of samples consists of the TiO2 with anatase phase and CoFe2O4 with spinel structure. The size of TiO2-CoFe2O4 particles is approximately 20 nm in diameter. The photocatalyst test showed highly photocatalytic activity in the sunlight.

引用

页码：1488 / 1492

页数：5

共 10 条

[1] Decomposition of pollutants in wastewater using magnetic photocatalyst particles [J].

Kurinobu, S. ;

Tsurusaki, K. ;

Natui, Y. ;

Kimata, M. ;

Hasegawa, M. .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2007, 310 (02) :E1025-E1027

[2] Different effects of cerium ions doping on properties of anatase and rutile TiO2 [J].

Li, Guangqin ;

Liu, Chunyan ;

Liu, Yun .

APPLIED SURFACE SCIENCE, 2006, 253 (05) :2481-2486

[3] Photooxidation pathway of sulforhodamine-B.: Dependence on the adsorption mode on TiO2 exposed to visible light radiation [J].

Liu, GM ;

Li, XZ ;

Zhao, JC ;

Hidaka, H ;

Serpone, N .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2000, 34 (18) :3982-3990

[4] Synthesis of TiO2-coated CoFe2O4 photocatalysts applied to the photodegradation of atrazine and rhodamine B in water [J].

Mourao, Henrique A. J. L. ;

Malagutti, Andrea R. ;

Ribeiro, Caue .

APPLIED CATALYSIS A-GENERAL, 2010, 382 (02) :284-292

[5] Photocatalytic activity of a TiO2 photocatalyst doped with C4+ and S4+ ions having a rutile phase under visible light [J].

Ohno, T ;

Tsubota, T ;

Toyofuku, M ;

Inaba, R .

CATALYSIS LETTERS, 2004, 98 (04) :255-258

[6] Photocatalytic activity of TiO2-nanotube layers loaded with Ag and Au nanoparticles [J].

Paramasivalm, I. ;

Macak, J. M. ;

Schmuki, P. .

ELECTROCHEMISTRY COMMUNICATIONS, 2008, 10 (01) :71-75

[7] Structure and photocatalytic characteristics of TiO2 film photocatalyst coated on stainless steel webnet [J].

Shang, J ;

Li, W ;

Zhu, YF .

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2003, 202 (1-2) :187-195

[8] Synthesis of a novel magnetic photocatalyst by direct deposition of nanosized TiO2 crystals onto a magnetic core [J].

Watson, S ;

Beydoun, D ;

Amal, R .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2002, 148 (1-3) :303-313

[9]

Woo L. S., 2006, MATER CHEM PHYS, V96, P483

[10] Dependence of photocatalytic activity on the compositions and photo-absorption of functional TiO2-Fe3O4 coatings deposited by plasma spray [J].

Ye, F. X. ;

Tsumura, T. ;

Nakata, K. ;

Ohmori, A. .

MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS, 2008, 148 (1-3) :154-161

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