WS2/MgAl-LDH复合材料的制备及其光催化性能研究

人工晶体学报 ›› 2020, Vol. 49 ›› Issue (12): 2322-2330.

WS₂/MgAl-LDH复合材料的制备及其光催化性能研究

孟子卉¹, 郑国源^1,2,3, 王吉林^1,2, 奚羽¹, 龙飞^1,2,3

1.桂林理工大学材料科学与工程学院,桂林 541004;
2.广西光电材料与器件重点实验室,桂林 541004;
3.桂林理工大学,有色金属矿产勘查与资源高效利用协同创新中心,桂林 541004

出版日期:2020-12-15 发布日期:2021-01-25
通信作者: 郑国源,博士。E-mail:zhengguoyuan@glut.edu.cn
作者简介:孟子卉(1996—),女,河北省人,硕士研究生。E-mail:1194825032@qq.com
基金资助:
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)

Preparation and Photocatalytic Performance of WS₂/MgAl-LDH Composite

MENG Zihui¹, ZHENG Guoyuan^1,2,3, WANG Jilin^1,2, XI Yu¹, LONG Fei^1,2,3

1. School of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China;
2. Guangxi Key Laboratory of Optoelectronic Materials and Devices, Guilin 541004, China;
3. Collaborative Innovation Center for Exploration of Nonferrous Metal Deposits and Efficient Utilization of Resources, Guilin University of Technology, Guilin 541004, China

Online:2020-12-15 Published:2021-01-25

摘要/Abstract

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。

关键词: WS₂, MgAl-LDH, 两步水热法, 层间负载, 光催化性能, 降解染料

Abstract: 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.

Key words: WS₂, MgAl-LDH, two-step hydrothermal method, interlayer load, photocatalytic performance, degradation dye

中图分类号:

孟子卉, 郑国源, 王吉林, 奚羽, 龙飞. WS₂/MgAl-LDH复合材料的制备及其光催化性能研究[J]. 人工晶体学报, 2020, 49(12): 2322-2330.

MENG Zihui, ZHENG Guoyuan, WANG Jilin, XI Yu, LONG Fei. Preparation and Photocatalytic Performance of WS₂/MgAl-LDH Composite[J]. JOURNAL OF SYNTHETIC CRYSTALS, 2020, 49(12): 2322-2330.

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WS₂/MgAl-LDH复合材料的制备及其光催化性能研究

Preparation and Photocatalytic Performance of WS₂/MgAl-LDH Composite

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