华南理工大学学报(自然科学版) ›› 2013, Vol. 41 ›› Issue (3): 129-134.doi: 10.3969/j.issn.1000-565X.2013.03.019

• 化学化工 • 上一篇    下一篇

合成反应时间对ZnIn2S4光催化制氢性能的影响

袁文辉1 刘晓晨1 李莉2   

  1. 1.华南理工大学 化学与化工学院,广东 广州 510640; 2. 华南理工大学 环境与能源学院,广东 广州 510006
  • 收稿日期:2012-06-15 修回日期:2012-11-13 出版日期:2013-03-25 发布日期:2013-02-01
  • 通信作者: 袁文辉(1969-),男,博士,副教授,主要从事纳米功能材料研究. E-mail:cewhyuan@scut.edu.cn
  • 作者简介:袁文辉(1969-),男,博士,副教授,主要从事纳米功能材料研究.
  • 基金资助:

    国家自然科学基金资助项目( 20976057)

Effect of Reaction Time on Photocatalytic Performance of ZnIn2S4 for Hydrogen Production

Yuan Wen-Hui1 Liu Xiao-Chen1 Li Li2   

  1. 1.School of Chemistry and Chemical Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China;2.School of Environment and Energy,South China University of Technology,Guangzhou 510006,Guangdong,China
  • Received:2012-06-15 Revised:2012-11-13 Online:2013-03-25 Published:2013-02-01
  • Contact: 袁文辉(1969-),男,博士,副教授,主要从事纳米功能材料研究. E-mail:cewhyuan@scut.edu.cn
  • About author:袁文辉(1969-),男,博士,副教授,主要从事纳米功能材料研究.
  • Supported by:

    国家自然科学基金资助项目( 20976057)

摘要: 在无模板、无催化剂、无表面活性剂的条件下,用溶剂热法合成了ZnIn2 S4光催化剂.通过X 射线衍射、扫描电子显微镜、能谱、X 射线光电子能谱、紫外-可见漫反射光谱分析等技术对样品进行了表征,研究了合成反应时间对ZnIn2S4催化剂晶体结构、形貌、光学性质及催化性能的影响. 结果表明: ZnIn2S4微球由大量的纳米薄片组成,呈现出花瓣状结构; 缩短合成反应时间导致ZnIn2 S4晶粒变大,同时样品的稳定性增加,产氢速率增大;ZnIn2S4的催化性能随着合成反应时间的延长而下降; 合成反应时间为1 h 时制备的样品具有最佳的光催化制氢活性,产氢率达745.8 μmol /( h·g) .

关键词: 光催化剂, 溶剂热法, ZnIn2S4, 制氢

Abstract:

Photocatalyst ZnIn2S4 was synthesized via the solvothermal method without templates,catalysts and surfactants,and the as-synthesized samples were characterized by means of XRD,SEM,EDS,XPS and UV-vis.Moreover,the effects of reaction time on the crystal structure,morphology,optical properties and photocatalyticactivity of ZnIn2S4 samples were discussed. The results indicate that ZnIn2S4 microspheres are composed of numerousnanosheets and present petaloid structure,and that,with the decrease of reaction time,the crystallite graduallyenlarges,the stability of the samples improves and the hydrogen production rate increases. However,with theincrease of reaction time,the photocatalytic activity of ZnIn2S4 decreases. In addition,after a solvothermal procedurefor 1h,the photocatalytic activity of ZnIn2S4 achieves the maximum and the hydrogen production rate is up to745.8 μmol /( h·g) .

Key words: photocatalyst, solvothermal method, ZnIn2S4, hydrogen production

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