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富含硫空位CdS-In2O3异质结光催化剂的构建及可见光产氢性能研究

作者:时间:2025-12-28点击数:


全文下载: 202506004.pdf


文章编号: 1672-6987(2025)06-0029-09 DOI: 10.16351/j.1672-6987.2025.06.004

吴笑群, 荆博洋, 王德宝*(青岛科技大学 化学与分子工程学院, 山东 青岛 266042)

摘要: 采用溶剂热-热解法合成了富含硫空位CdS-In2O3异质结光催化剂,以解决In2O3可见光利用率低、光生电荷分离效率低等问题。通过结构表征、XPS、XPS-VB、光电流和莫特-肖特基谱图等实验,探究了异质结中光生载流子分离和转移途径。结果表明:富含硫空位CdS-In2O3形成S机制异质结,所得光催化剂可见光产氢效率可达11.11 mmol · (g · h)-1,对比单组分CdS和In2O3的产氢性能明显提高。探讨了硫空位和丰富的活性位点协同增强光催化性能的机理。该工作为构建可见光产氢高活性异质结光催化剂提供了一种简便有效的途径。


关键词: CdS; In2O3 S-机制; 异质结; 光催化; 产氢性能


中图分类号: O 614        文献标志码: A


引用格式: 吴笑群, 荆博洋, 王德宝. 富含硫空位CdS-In2O3异质结光催化剂的构建及可见光产氢性能研究[J]. 青岛科技大学学报(自然科学版), 2025, 46(6): 29-37.


WU Xiaoqun, JING Boyang, WANG Debao. CdS-In2O3 heterojunction photocatalysts with rich sulfur vacancy for enhanced visible-light hydrogen evolution[J]. Journal of Qingdao University of Science and Technology(Natural Science Edition), 2025, 46(6): -.

CdS-In2O3 Heterojunction Photocatalysts with Rich Sulfur Vacancy for Enhanced Visible-light Hydrogen Evolution

WU Xiaoqun, JING Boyang, WANG DebaoCollege of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China)

Abstract: A new type of CdS-In2O3 heterojunction photocatalyst with rich sulfur vacancy was constructed by using solvothermal method combined pyrolysis to improve visible light utilization and photogenerated charge carrier separation efficiency in In2O3. Microstructure characterization, XPS, XPS-VB, Mott-Schottky plots, and photoelectrochemical properties were investigated to explore photogenerated charge separation and transfer in the heterojunction. The experimental results showed a S-scheme heterojunction forms for CdS-In2O3 with rich sulfur vacancy. The maximum hydrogen production rate is 11.11 mmol · (g · h)-1 under visible-light. Moreover, a reasonable mechanism for enhanced hydrogen production performance from synergistic effect of sulfur vacancy and rich active sites was also discussed. This work provides a new strategy to construct S-scheme heterojunction photocatalyst for enhanced visible-light hydrogen evolution.


Key words: CdS; In2O3 S-scheme; heterojunction; photocatalysis; hydrogen evolution performance

收稿日期: 2023-05-03

基金项目: 国家自然科学基金项目 51872152).

作者简介: 吴笑群 1997—), 女, 硕士研究生.    * 通信联系人.


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