应用化学2025，Vol.42Issue(9)：1196-1208,13.DOI:10.19894/j.issn.1000-0518.240289
Zn掺杂CdS/g-C3N4复合材料的制备及其光催化性能
Preparation and Photocatalytic Properties of Zn-CdS/g-C3N4 Composites
摘要
Abstract
Under strong light irradiation,CdS quantum dots are prone to photocorrosion.The photocatalytic performance and photostability of CdS can be improved by metal doping and recombination.In this paper,Zn-doped CdS/g-C3N4 composite nanomaterials(Zn-CdS/g-C3N4)were synthesized by a hydrothermal method.The morphology,structure and composition of Zn-CdS/g-C3N4 were characterized by scanning electron microscope(SEM),transmission electron microscope(TEM),X-ray diffraction(XRD),X-ray photoelectron spectrometer(XPS)and Fourier transform infrared spectroscopy(FT-IR).The results show that Zn-CdS nanoparticles are attached on g-C3N4 to form Zn-CdS/g-C3N4 composite nanomaterials with the smaller band gap and lower recombination rate of electron-hole.The photocatalytic performance of Zn-CdS/g-C3N4 for rhodamine B(RhB)was studied.Under the optimum conditions,the photocatalytic degradation efficiency of as-prepared Zn-CdS/g-C3N4 is up to 99％after 40 min of light irradiation with 500 W Xe lamp.In addition,the synthesized Zn-CdS/g-C3N4 composites have high photostability and good reproducibility.This is attributed to the synergistic effect between Zn and Cd and the recombination with g-C3N4,which promotes the separation and transfer of photogenerated carriers.关键词
硫化镉/石墨相氮化碳(g-C3N4)/水热法/罗丹明B/光催化降解Key words
CdS/g-C3N4/Hydrothermal method/Rhodamine B/Photocatalytic degradation分类
化学化工引用本文复制引用
翟好英,杨琴,吴毅,蒋洪洋,周文俊..Zn掺杂CdS/g-C3N4复合材料的制备及其光催化性能[J].应用化学,2025,42(9):1196-1208,13.基金项目
国家自然科学基金(No.21801176)和内江师范学院重点科研项目(No.2021ZD05)资助 Supported by the National Natural Science Foundation of China(No.21801176)and the Key Research Project of Neijiang Normal University(No.2021ZD05) （No.21801176）
