CQDs/Ag3PO4/CS材料的制备及其光催化性能  

Preparation of CQDs/Ag3PO4/CS Composites and Study on Their Photocatalytic Performance

作　　者：张玲帆[1] 余行健 柏昱汀 杨晨 阮晟哲 刘鑫[1] ZHANG Lingfan;YU Xingjian;BAI Yuting;YANG Chen;RUAN Chengzhe;LIU Xin(School of Chemistry and Molecular Engineering,East China University of Science and Technology,Shanghai 200237,China;School of Pharmacy,East China University of Science and Technology,Shanghai 200237,China)

机构地区：[1]华东理工大学化学与分子工程学院,上海200237 [2]华东理工大学药学院,上海200237

出　　处：《实验室研究与探索》2020年第11期50-53,共4页Research and Exploration In Laboratory

基　　金：上海市大学生创新创业训练计划项目(S17035);华东理工大学分子工程与材料科学青少年科学创新实践工作站(19DZ2330400)。

摘　　要：以碳微球(CS)为载体,碳量子点(CQDs)为助催化剂,对磷酸银(Ag3PO4)的光催化性能进行改性。采用低温水热法制备了Ag3PO4/CS、CQDs/Ag3PO4和CQDs/Ag3PO4/CS 3种光催化剂。通过X射线衍射、紫外-可见光分光光谱、傅里叶红外光谱、扫描电子显微镜和透射电子显微镜对3种光催化剂的结构和形态进行表征,并用3种光催化剂对亚甲基蓝进行光催化降解研究。实验结果表明:CQDs/Ag3PO4/CS光催化剂在可见光范围内均有较强吸收,CS和CQDs的协同改性能够提高Ag3PO4的光催化性能和稳定性,为Ag3PO4的改性提供了一种新的途径。Using carbon microspheres(CS)as carriers and carbon quantum dots(CQDs)as co-catalysts,the photocatalytic performance of silver phosphate(Ag3PO4)was modified.Ag3 PO4/CS,CQDs/Ag3PO4 and CQDs/Ag3PO4/CS composites were prepared by a low-temperature hydrothermal method.The structure and morphology of the three photocatalysts were characterized by X-ray diffraction,ultraviolet-visible spectroscopy,Fourier transform infrared spectroscopy,scanning electronic microscopy,and transmission electronic microscopy.Then their photocatalytic degradations on methylene blue were analyzed.The experimental results show that the CQDs/Ag3PO4/CS photocatalyst has an intensive absorption in the visible light range.The combination of carbon microspheres and carbon quantum dots can improve the photocatalytic performance and stability of Ag3PO4,which provides a new approach of the modification for Ag3PO4.

关 键 词：磷酸银 碳量子点 碳微球 光催化 

分 类 号：O655.1[理学—分析化学]