石油化工高等学校学报

石油化工高等学校学报 ›› 2018, Vol. 31 ›› Issue (01): 23-29.DOI: :10.3969/j.issn.1006-396X.2018.01.005

• 石油化工 • 上一篇    下一篇

不同g-C3N4/WO3 异质结材料的制备及其光催化性能研究

梁红玉1,2,李建中1,田彦文1,邹 赫2,胡绍争2   

  1. 1.东北大学 冶金学院，辽宁 沈阳 110819； 2.辽宁石油化工大学 化学化工与环境学部，辽宁 抚顺 113001
  • 收稿日期:2017-11-23 修回日期:2017-12-25 出版日期:2018-02-28 发布日期:2018-02-27
  • 作者简介::梁红玉(1969-),女,博士研究生,副教授,从事层状材料(水滑石、石墨型氮化碳等)在绿色能源及环境工程中的应用;Email: lianghongyu163@163.com。
  • 基金资助:
    国家自然科学基金项目资助(No.51374053)。

Different Preparation and Photocatalytic Performance of g-C3N4/WO3  Heterojunctions

Liang Hongyu1,2, Li Jianzhong1, Tian Yanwen1, Zou He2, Hu Shaozheng2   

  1. 1. School of Metallurgy, Northeastern University, Shenyang Liaoning 110819, China; 2. College of Chemistry, Chemical Engineering and Environmental Engineering, Liaoning Shihua University，Fushun Liaoning 113001，China
  • Received:2017-11-23 Revised:2017-12-25 Published:2018-02-28 Online:2018-02-27

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摘要： 分别采用超声分散法、水热法和焙烧法制备了g-C3N4/WO3 异质结催化剂,采用XRD、UV-Vis、氮气吸附、XPS、荧光光谱、EIS(阻抗谱)等多种手段对制备的催化剂进行表征。结果表明,制备方法对异质结组分间的结合强弱有显著影响,导致电子空穴分离效率迥异。模拟可见光下降解罗丹明B(RhB)和分解水制氢气作为探针反应来考察产品光催化性能,可得出三种异质结产品催化性能全部优于单个组分,而且水热法制备的产品催化性能最佳。

关键词: 石墨相氮化碳, 三氧化钨, 异质结材料, 光催化

Abstract: Three different methods (ultrasonic dispersion, hydrothermal method and calcination) were used to prepared g-C3N4/WO3  heterojunctions. Obtained catalysts were characterized with X-ray diffraction (XRD), UVvis spectroscopy, nitrogen adsorption, X-ray photoelectron spectroscopy (XPS), photoluminescence (PL), and Electrochemical impedance spectroscopy (EIS). The results showed that the interaction between g-C3N4/WO3  and WO3 was obviously affected by the preparation methods, resulting in the significant difference in separation rate of photogenerated electrons and holes. The photocatalytic performances were detected in photocatalytic Rhodamine B (RhB) degradation under simulated visible light. The results indicated that activities of g-C3N4/WO3  heterojunction composites were evidently higher than that of single g-C3N4/WO3  or WO3 semiconductor, and the heterojunction semiconductor prepared by the hydrothermal method showed the highest photocatalytic activity.

Key words: g-C3N4, WO3, Heterojunction composites, Photocataly

引用本文

梁红玉,李建中,田彦文,邹 赫,胡绍争. 不同g-C3N4/WO3 异质结材料的制备及其光催化性能研究[J]. 石油化工高等学校学报, 2018, 31(01): 23-29.

Liang Hongyu, Li Jianzhong, Tian Yanwen, Zou He, Hu Shaozheng. Different Preparation and Photocatalytic Performance of g-C3N4/WO3  Heterojunctions[J]. Journal of Petrochemical Universities, 2018, 31(01): 23-29.

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