Template-free hydrothermal synthesis and high photocatalytic activity of ZnWO4 nanorods

被引：37

作者：

Gao, Bin ^{[1
,2
]}

Fan, Huiqing ^{[1
]}

Zhang, Xiaojun ^{[2
]}

Song, Lixun ^{[2
]}

机构：

[1] Northwestern Polytech Univ, Sch Mat Sci & Engn, State Key Lab Solidificat Proc, Xian 710072, Peoples R China

[2] Xian Polytech Univ, Sch Sci, Xian 710048, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS | 2012年 / 177卷 / 13期

关键词：

Photocatalytic; Hydrothermal synthesis; ZnWO4; nanorod; Methylene blue; DEGRADATION; GROWTH; POWDERS; FABRICATION; PROPERTY; TIO2; CD;

D O I：

10.1016/j.mseb.2012.05.022

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

ZnWO4 nanorods are successfully synthesized by a template-free hydrothermal method, and are characterized in detail by X-ray diffractometer (XRD), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM) and selected area electron diffraction (SAED). The results show that the ZnWO4 nanorods with wolframite structure are well-crystallized single crystallites. The crystallinity of the products is influenced by the pH value of initial precursor suspension. The width and length of the synthesized samples increase with hydrothermal reaction temperature. The photocatalytic efficiency of the ZnWO4 nanorods for degradation of methylene blue (MB) in aqueous solution under UV light irradiation declines greatly with increasing crystallinity. The ZnWO4 nanorods prepared at pH of 4 have the best activity in photo-degradation of MB. After six recycles, photocatalytic activity loss of the catalyst is not obvious. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：1126 / 1132

页数：7

共 35 条

[1] A facile microwave solvothermal process to synthesize ZnWO4 nanoparticles [J].

Bi, Jinhong ;

Wu, Ling ;

Li, Zhaohui ;

Ding, Zhengxin ;

Wang, Xuxu ;

Fu, Xianzhi .

JOURNAL OF ALLOYS AND COMPOUNDS, 2009, 480 (02) :684-688

[2] Conversion of colloidal ZnO-WO3 heteroaggregates into strongly blue luminescing ZnWO4 xerogels and films [J].

Bonanni, M ;

Spanhel, L ;

Lerch, M ;

Fuglein, E ;

Muller, G ;

Jermann, F .

CHEMISTRY OF MATERIALS, 1998, 10 (01) :304-310

[3] Optical spectra and energy levels of the Cr3+ ions in MWO4 (M = Mg, Zn, Cd) and MgMoO4 crystals [J].

Cavalli, E. ;

Belletti, A. ;

Brik, M. G. .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 2008, 69 (01) :29-34

[4] Fabrication of nanocrystalline ZnWO4 with different morphologies and sizes via hydrothermal route [J].

Chen, SJ ;

Zhou, JH ;

Chen, XT ;

Li, J ;

Li, LH ;

Hong, JM ;

Xue, ZL ;

You, XZ .

CHEMICAL PHYSICS LETTERS, 2003, 375 (1-2) :185-190

[5] Processing-structure-property relationships of Bi2WO6 nanostructures as visible-light-driven photocatalyst [J].

Cui, Zhankui ;

Zeng, Dawen ;

Tang, Tengteng ;

Liu, Jun ;

Xie, Changsheng .

JOURNAL OF HAZARDOUS MATERIALS, 2010, 183 (1-3) :211-217

[6] MgWO4-A new crystal scintillator [J].

Danevich, F. A. ;

Chernyak, D. M. ;

Dubovik, A. M. ;

Grinyov, B. V. ;

Henry, S. ;

Kraus, H. ;

Kudovbenko, V. M. ;

Mikhailik, V. B. ;

Nagornaya, L. L. ;

Podviyanuk, R. B. ;

Polischuk, O. G. ;

Tupitsyna, I. A. ;

Vostretsov, Yu. Ya. .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2009, 608 (01) :107-115

[7] Characterizations and properties of Eu3+-doped ZnWO4 prepared via a facile self-propagating combustion method [J].

Dong, Tiaotiao ;

Li, Zhaohui ;

Ding, Zhengxin ;

Wu, Ling ;

Wang, Xuxu ;

Fu, Xianzhi .

MATERIALS RESEARCH BULLETIN, 2008, 43 (07) :1694-1701

[8] Visible-light-induced degradation of rhodamine B by nanosized Bi2WO6 [J].

Fu, HB ;

Pan, CS ;

Yao, WQ ;

Zhu, YF .

JOURNAL OF PHYSICAL CHEMISTRY B, 2005, 109 (47) :22432-22439

[9] Synthesis, characterization and photocatalytic properties of nanosized Bi2WO6, PbWO4 and ZnWO4 catalysts [J].

Fu, Hongbo ;

Pan, Chengsi ;

Zhang, Liwu ;

Zhu, Yongfa .

MATERIALS RESEARCH BULLETIN, 2007, 42 (04) :696-706

[10] Preparation and luminescence property of Sm-doped ZnWO4 powders and films with wet chemical methods [J].

He, H. Y. .

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 2009, 246 (01) :177-182

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