文章摘要
崔洪珊,何杰,徐从波,赵玲玲,王丽平.Ag2O-NiTi-LDH复合材料的构建及其光催化氧化乙硫醇性能研究[J].安徽建筑大学学报,2024,32():
Ag2O-NiTi-LDH复合材料的构建及其光催化氧化乙硫醇性能研究
Construction of Ag2O-NiTi-LDH Composite and Its Photocatalytic Oxidation of Ethyl Mercaptan
投稿时间:2023-09-28  修订日期:2024-01-07
DOI:10.11921/j.issn.2095-8382.20231007001
中文关键词: 氧化银,镍钛-层状双金属氢氧化物,复合材料,光催化,乙硫醇
英文关键词: Ag2O  NiTi-layered double hydroxide  composite  photocatalytic  ethyl mercaptan
基金项目:安徽省高校自然科学重点项目(KJ2017A587);安徽省高校自然科学重点项目(KJ2021A1305)
作者单位E-mail
崔洪珊 淮南联合大学 制药与材料学院

安徽理工大学 地球与环境学院
 
54587679@qq.com 
何杰* 安徽理工大学 地球与环境学院安徽理工大学 化学工程学院 jhe@aust.edu.cn 
徐从波 淮南联合大学 制药与材料学院  
赵玲玲 安徽理工大学 化学工程学院  
王丽平 淮南联合大学 制药与材料学院  
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中文摘要:
      本文将氧化银(Ag2O)负载到镍-钛层状双金属氢氧化物(NiTi-LDH)上以构建Ag2O-NiTi-LDH复合材料。通过XRD、SEM、TEM、XPS、UV-vis、电化学工作站和FT-IR等技术对样品进行表征。采用静态吸附-光催化的方法对乙硫醇进行吸附氧化降解。结果表明:复合材料中Ag2O和NiTi-LDH之间存在相互作用,使得Ag2O-NiTi-LDH复合材料比单一基体材料的带隙能小,光生电子-空穴的分离和迁移效率高;在光催化实验中,单一的基体材料NiTi-LDH对乙硫醇的光催化效果不明显,Ag2O和Ag2O-NiTi-LDH虽然都能将乙硫醇光催化氧化成磺酸盐,但Ag2O-NiTi-LDH复合材料光催化氧化降解效率要高于Ag2O。
英文摘要:
      In this paper, Ag2O-NiTi-LDH composites were prepared by loading silver oxide (Ag2O) onto Ni-Ti layered double hydroxide (NiTi-LDH). The samples were characterized by a means of XRD, SEM, TEM, XPS, UV-vis, electrochemical workstation and FT-IR technologies. The adsorption and photocatalytic performance of samples on ethyl mercaptan were evaluated by static adsorption-photocatalytic method. The results show that there is an interaction between Ag2O and NiTi-LDH, which makes the band gap energy of Ag2O-NiTi-LDH composite lower than that of itsprecursors, and the efficiency of separation and migration of photo-generated electron-hole is higher. In the photocatalytic experiment, a single precursor NiTi-LDH has no obvious photocatalytic effect on ethyl mercaptan. Both Ag2O and Ag2O-NiTi LDH can photocatalytic oxidize ethyl mercaptan to sulfonates, however, the photocatalytic degradation efficiency of the composite Ag2O-NiTi-LDH has a much higher than that of Ag2O.
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