辽宁石油化工大学学报 ›› 2025, Vol. 45 ›› Issue (5): 28-36.DOI: 10.12422/j.issn.1672-6952.2025.05.004

• 材料科学与新能源(光电功能材料) • 上一篇    下一篇

CdS/Mg⁃CdIn2S4异质结构筑及CO2光还原性能研究

张燕(), 宋正宜, 万柳, 杜成, 解明江, 陈建()   

  1. 黄冈师范学院 化学化工学院,湖北 黄冈 438000
  • 收稿日期:2025-07-07 修回日期:2025-07-21 出版日期:2025-10-25 发布日期:2025-10-20
  • 通讯作者: 陈建
  • 作者简介:张燕(1987⁃),女,博士,讲师,从事光催化和储能方面的研究;E⁃mail:zhangyan@hgnu.edu.cn
  • 基金资助:
    中南民族大学催化转化与能源材料化学教育部重点实验室/催化材料科学湖北省重点实验室开放课题(CHCL2024006)

Research on the Construction of CdS/Mg⁃CdIn2S4 Heterostructures and Their Catalytic Performance in CO2 Photoreduction

Yan ZHANG(), Zhengyi SONG, Liu WAN, Cheng DU, Mingjiang XIE, Jian CHEN()   

  1. School of Chemistry and Chemical Engineering,Huanggang Normal University,Huanggang Hubei 438000,China
  • Received:2025-07-07 Revised:2025-07-21 Published:2025-10-25 Online:2025-10-20
  • Contact: Jian CHEN

摘要:

CdS在可见光区具有优异的光化学性能和高量子效率,但其光催化稳定性明显受光腐蚀限制,构筑CdS/Mg?CdIn2S4异质结可抑制光腐蚀并提升其光催化稳定性。采用离子交换法制备CdS纳米线(CdS NWs)、CdS纳米颗粒(CdS NPs)和Mg?CdIn2S4纳米片(NSs),并构筑5%CdS NWs/Mg?CdIn2S4(5%为CdS NWs的质量分数)和5%CdS NPs/Mg?CdIn2S4(5%为CdS NPs的质量分数)异质结;通过XRD、UV?vis DRS、FT?IR光谱、N2吸脱附等温测试及瞬态光电流和电化学阻抗对光催化剂进行了表征。结果表明,CdS NWs/Mg?CdIn2S4和CdS NPs/Mg?CdIn2S4异质结成功构筑;在光反应系统对催化剂进行的性能评价中,二者均展现出良好的光催化CO2还原性能,其中CdS NWs/Mg?CdIn2S4展现出更为突出的光催化CO2还原性能,CO和H2的产率分别为716.7 μmol/(g·h)和664.3 μmol/(g·h),分别比Mg?CdIn2S4提高了46.2倍和56.8倍。研究结果为光催化CO2还原领域的深入研究和应用奠定了基础,具有重要的学术和实际意义。

关键词: CdS/Mg?CdIn2S4, 异质结构, 光催化, CO2还原

Abstract:

CdS exhibits excellent photochemical properties and high quantum efficiency in the visible light region, however, its catalytic stability is significantly compromised by photocorrosion. Constructing CdS/Mg?CdIn2S4 heterojunctions can effectively suppress photocorrosion and enhance the material's overall stability. In this study, CdS nanowires (CdS NWs), CdS nanoparticles (CdS NPs), and Mg?CdIn2S4 nanosheets (NSs) were prepared using the ion exchange method, and heterojunctions of 5% CdS NWs/Mg?CdIn?S? (5% by mass fraction of CdS NWs) and 5% CdS NPs/Mg?CdIn?S? (5% by mass fraction of CdS NPs) were constructed. The photocatalysts were characterized using X?ray diffraction (XRD), UV?vis diffuse reflectance spectroscopy (DRS), Fourier?transform infrared (FT?IR) spectroscopy, N2 adsorption?desorption isothermal analysis, transient photocurrent measurements, and electrochemical impedance spectroscopy. The results confirmed the successful construction of both CdS NWs/Mg?CdIn2S4 and CdS NPs/Mg?CdIn2S4 heterojunctions. The catalytic performance was evaluated in a photoreaction system, both heterojunctions possess significant capabilities for the photocatalytic reduction of CO2. Notably, the CdS NWs/Mg?CdIn2S4 heterojunction exhibited superior photocatalytic performance, achieving CO and H2 production rates of 716.7 μmol/(g·h) and 664.3 μmol/(g·h), respectively. These values represent a 46.2?fold and 56.8?fold enhancement compared to pristine Mg?CdIn?S?.Consequently, this work provides a solid foundation for further research and practical applications in the field of photocatalytic CO2 reduction, underscoring significant academic and practical significance.

Key words: CdS/Mg?CdIn2S4, Heterostructure, Photocatalysis, CO2 reduction

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引用本文

张燕, 宋正宜, 万柳, 杜成, 解明江, 陈建. CdS/Mg⁃CdIn2S4异质结构筑及CO2光还原性能研究[J]. 辽宁石油化工大学学报, 2025, 45(5): 28-36.

Yan ZHANG, Zhengyi SONG, Liu WAN, Cheng DU, Mingjiang XIE, Jian CHEN. Research on the Construction of CdS/Mg⁃CdIn2S4 Heterostructures and Their Catalytic Performance in CO2 Photoreduction[J]. Journal of Liaoning Petrochemical University, 2025, 45(5): 28-36.

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