辽宁石油化工大学学报

辽宁石油化工大学学报 ›› 2015, Vol. 35 ›› Issue (4): 1-4,15.DOI: 10.3696/j.issn.1672-6952.2015.04.001

• 石油化工 •    下一篇

C d S / A g 2S复合光催化剂的制备及其光催化性能的研究

艾 东1,赵荣祥1,李秀萍1,徐铸德2   

  1. ( 1. 辽宁石油化工大学化学化工与环境学部, 辽宁抚顺1 1 3 0 0 1; 2. 浙江大学化学系物理化学研究所, 浙江杭州3 1 0 0 2 7)
  • 出版日期:2015-08-25 发布日期:2015-08-14
  • 通讯作者: 赵荣祥( 1 9 7 1 - ) , 男, 博士, 副教授, 从事催化剂制备与性能研究; E - m a i l : z y l h z r x@1 2 6. c o m。
  • 作者简介:艾东( 1 9 9 0 - ) , 男, 硕士研究生, 从事催化剂方面的研究; E - m a i l : 2 7 1 8 7 6 2 5 8@q q. c o m。
  • 基金资助:
    国家自然科学基金项目( 2 0 1 7 1 0 3 9) 。

Preparation of CdS/Ag2S Composite Photocatalyst and Its Photocatalytic Performance

Ai Dong1, Zhao Rongxiang1, Li Xiuping1, Xu Zhude2   

  1. (1.College of Chemistry,Chemical Engineering and Environmental Engineering,Liaoning  Shihua University,Fushun Liaoning 113001,China;  2.Institute of Physical Chemistry, Department of Chemisry,Zhejiang University,Hangzhou Zhejiang 310027,China)
  • Published:2015-08-25 Online:2015-08-14

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摘要： 采用沉积 � 沉淀法制备了一系列不同 A g 2S负载量的C d S / A g 2S复合光催化剂, 通过 X射线衍射、 扫描电镜、 紫外 � 可见光谱等手段对催化剂进行了表征。结果表明, C d S / A g 2S系列样品的颗粒粒径小于C d S的颗粒粒径。以可见光为光源, 考察了 A g 2S负载量对 C d S / A g 2S系列样品的光催化性能的影响。结果表明, 当A g 2S负载量为1 0. 0%、 反应时间为2 2 0m i n时, 罗丹明B的降解率达到最高, 为7 1%。 C d S / A g 2S复合光催化剂能够显著减少光生电子 � 空穴对的重新结合次数, 因此其光催化降解罗丹明B的能力要高于C d S。

关键词:  C d S / A g 2S, 光催化, 异质结, 罗丹明B, 沉积 —&mdash, 沉淀法

Abstract: Series of CdS/Ag2S composite photocatalysts with different Ag2S concentrations were prepared by the precipitation-grinding method. The prepared samples were characterized by X-ray diffraction, scanning electron microscopy, UVvisible spectroscopy, and photoluminescence spectroscopy. The catalyst particle size of CdS/Ag2S was proved to be smaller than the catalyst particle size of CdS. The reaction system was set under visible light irradiation to study the influence to the photocatalytic performance of CdS/Ag2S with different condentration of Ag2S. The CdS/Ag2S composite photocatalyst with the weight of 100% concentration of Ag2S showed the highest photocatalytic activity and the degradation of Rhodamine B was 71%.The presence of Ag2S also restrained the recombination rate of e-/h+ pairs.The photocatalytic activity of degradation of Rhodamine B was significantly improving.

Key words: CdS/Ag2S, Photocatalytic, Heterojunction, Rhodamine B, Precipitationgrinding method

引用本文

艾 东,赵荣祥,李秀萍,徐铸德. C d S / A g 2S复合光催化剂的制备及其光催化性能的研究[J]. 辽宁石油化工大学学报, 2015, 35(4): 1-4,15.

Ai Dong, Zhao Rongxiang, Li Xiuping, Xu Zhude. Preparation of CdS/Ag2S Composite Photocatalyst and Its Photocatalytic Performance[J]. Journal of Liaoning Petrochemical University, 2015, 35(4): 1-4,15.

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