辽宁石油化工大学学报2025，Vol.45Issue(5)：28-36,9.DOI:10.12422/j.issn.1672-6952.2025.05.004
CdS/Mg-CdIn2S4异质结构筑及CO2光还原性能研究
Research on the Construction of CdS/Mg-CdIn2S4 Heterostructures and Their Catalytic Performance in CO2 Photoreduction
摘要
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-CdIn2S4(5％by mass fraction of CdS NWs)and 5％CdS NPs/Mg-CdIn2S4(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-CdIn2S4.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.关键词
CdS/Mg-CdIn2S4/异质结构/光催化/CO2还原Key words
CdS/Mg-CdIn2S4/Heterostructure/Photocatalysis/CO2 reduction分类
能源科技引用本文复制引用
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):28-36,9.基金项目
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). （CHCL2024006）
