One-step template-free fabrication of mesoporous ZnO/TiO2 hollow microspheres with enhanced photocatalytic activity

被引：64
作者：
Wang, Yazhi [1 ]
Zhu, Shuping [1 ]
Chen, Xiangrong [1 ]
Tang, Yougen [1 ]
Jiang, Yifan [1 ]
Peng, Zhiguang [1 ]
Wang, Haiyan [1 ]
机构：
[1] Cent S Univ, Coll Chem & Chem Engn, Minist Educ, Key Lab Resources Chem Nonferrous Met, Changsha 410083, Hunan, Peoples R China
来源：
APPLIED SURFACE SCIENCE | 2014年 / 307卷
关键词：
Hollow microspheres; Photocatalytic-degradation; Methyl orange; ZnO/TiO2; hybrid; DOPED TIO2; HYDROTHERMAL SYNTHESIS; OXIDE NANOPARTICLES; HYDROGEN-PRODUCTION; METHYL-ORANGE; TEMPERATURE; SPHERES; ZNO; CARBON; NANOSTRUCTURES;
D O I：
10.1016/j.apsusc.2014.04.023
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Mesoporous ZnO/TiO2 hollow microspheres have been successfully synthesized by a facile one-step hydrothermal route without any template. The effect of reactants, temperature and hydrothermal time on the morphology and photocatalytic degradation activity has been investigated in details. The hollow microspheres with average diameter of 0.5-2 mu m showed time-dependent growth process and consisted of nanoparticles with a diameter of 10-20 nm. The photocatalytic activity of ZnO/TiO2 hollow microspheres was evaluated via the photocatalytic degradation of methyl orange (MO). Compared with the pristine TiO2 hollow microspheres or ZnO nanosheets, the ZnO/TiO2 hollow microspheres produced significantly positive effect on the band-gap energy shift (from 3.16 eV (TiO2 ) to 2.80 eV (ZnO/TiO2 )) and photocatalytic degradation (with a high apparent reaction rate of 10.19 10(-2) min(-1)) probably owing to the hybrid hollow microsphere morphology and their synergistic catalytic effect. (C) 2014 Elsevier B.V. All rights reserved.
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收藏
页码：263 / 271
页数：9
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共 51 条
  • [1] Visible light photocatalytic water splitting for hydrogen production from N-TiO2 rice grain shaped electrospun nanostructures
    Babu, Veluru Jagadeesh
    Kumar, Manippady K.
    Nair, Appukuttan Sreekumaran
    Kheng, Tan Lee
    Allakhverdiev, Suleyman I.
    Ramakrishna, Seeram
    [J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2012, 37 (10) : 8897 - 8904
  • [2] Synthesis of TiO2 hollow sphere multimer photocatalyst by etching titanium plate and its application to the photocatalytic decomposition of gaseous styrene
    Chen, Jiangyao
    Nie, Xin
    Shi, Huixian
    Li, Guiying
    An, Taicheng
    [J]. CHEMICAL ENGINEERING JOURNAL, 2013, 228 : 834 - 842
  • [3] Gold nanocages: Engineering their structure for biomedical applications
    Chen, JY
    Wiley, B
    Li, ZY
    Campbell, D
    Saeki, F
    Cang, H
    Au, L
    Lee, J
    Li, XD
    Xia, YN
    [J]. ADVANCED MATERIALS, 2005, 17 (18) : 2255 - 2261
  • [4] Soft-Template Synthesis and Characterization of ZnO2 and ZnO Hollow Spheres
    Cheng, S.
    Yan, D.
    Chen, J. T.
    Zhuo, R. F.
    Feng, J. J.
    Li, H. J.
    Feng, H. T.
    Yan, P. X.
    [J]. JOURNAL OF PHYSICAL CHEMISTRY C, 2009, 113 (31) : 13630 - 13635
  • [5] One-pot synthesis of double-shelled ZnV2O4 hollow nanostructures via a template-free route
    Duan, Fang
    Zhang, Qianhong
    Wei, Congjie
    Shi, Dongjian
    Chen, Mingqing
    [J]. MATERIALS LETTERS, 2013, 92 : 231 - 234
  • [6] ELECTROCHEMICAL PHOTOLYSIS OF WATER AT A SEMICONDUCTOR ELECTRODE
    FUJISHIMA, A
    HONDA, K
    [J]. NATURE, 1972, 238 (5358) : 37 - +
  • [7] Grain refining effect of magnetic field on Mg2Ni0.8Mn0.2 hydrogen storage alloys during rapid quenching
    Jiang, Chenxi
    Wang, Haiyan
    Chen, Xiangrong
    Tang, Yougen
    Lu, Zhouguang
    Wang, Yazhi
    Liu, Zuming
    [J]. ELECTROCHIMICA ACTA, 2013, 112 : 535 - 540
  • [8] Preparation of Cu2O/TiO2 composite porous carbon microspheres as efficient visible light-responsive photocatalysts
    Jiang, Guohua
    Wang, Rijing
    Jin, He
    Wang, Yin
    Sun, Xinke
    Wang, Sheng
    Wang, Tao
    [J]. POWDER TECHNOLOGY, 2011, 212 (01) : 284 - 288
  • [9] One-pot template-free preparation of mesoporous TiO2 hollow spheres and their photocatalytic activity
    Kang, Shizhao
    Yin, Dieer
    Li, Xiangqing
    Li, Liang
    Mu, Jin
    [J]. MATERIALS RESEARCH BULLETIN, 2012, 47 (11) : 3065 - 3069
  • [10] Photocatalytic activity of ZnO-TiO2 hierarchical nanostructure prepared by combined electrospinning and hydrothermal techniques
    Kanjwal, Muzafar A.
    Barakat, Nasser A. M.
    Sheikh, Faheem A.
    Park, Soo Jin
    Kim, Hak Yong
    [J]. MACROMOLECULAR RESEARCH, 2010, 18 (03) : 233 - 240
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