摘要
采用两步水热法制备了WS2/MgAl-LDH(水滑石)复合材料,通过X-射线衍射仪、傅立叶变换红外光谱仪、场发射扫描电子显微镜、透射电子显微镜和X-射线光电子能谱仪等测试分析,表明在MgAl-LDH层间原位合成了WS2纳米粒子。将该复合材料作为催化剂来降解150 mg/L,pH值为3的甲基橙溶液,其结果是:在模拟可见光条件下辐照75 min,该甲基橙溶液的降解率超过80%,且循环性能优异。由此表明,WS2/MgAl-LDH复合材料是一种极具应用潜力的光催化剂。
The WS2/MgAl-LDH composite was prepared by a two-step hydrothermal method.The analysis of X-ray diffraction,Fourier transform infrared spectroscopy,field emission scanning electron microscope,transmission electron microscope and X-ray photoelectron spectroscopy show that the WS2 nanoparticles are synthesized in situ between layers of MgAl-LDH.The composite was used as a catalyst to degrade 150 mg·L^-1 methyl orange solution with pH value of 3.The results show that the degradation rate of methyl orange solution exceeds 80%under simulated visible light irradiation for 75 min,and the cycling performance is excellent.Therefore,WS2/MgAl-LDH composite is considered a promising photocatalyst.
作者
孟子卉
郑国源
王吉林
奚羽
龙飞
MENG Zihui;ZHENG Guoyuan;WANG Jilin;XI Yu;LONG Fei(School of Materials Science and Engineering,Guilin University of Technology,Guilin 541004,China;Guangxi Key Laboratory of Optoelectronic Materials and Devices,Guilin 541004,China;Collaborative Innovation Center for Exploration of Nonferrous Metal Deposits and Efficient Utilization of Resources,Guilin University of Technology,Guilin 541004,China)
出处
《人工晶体学报》
EI
CAS
北大核心
2020年第12期2322-2330,共9页
Journal of Synthetic Crystals
基金
广西特聘专家专项经费
广西科技计划项目广西科技基地和人才专项(2019AC19003)。
