Ag2O-NiTi-LDH复合材料的构建及其光催化氧化乙硫醇性能研究

崔洪珊; 何杰; 徐从波; 赵玲玲; 王丽平

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(1):36-42

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

DOI：

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:安徽高校自然科学研究项目（KJ2017A587、KJ2021A1305）

作者	单位
崔洪珊	淮南联合大学制药与材料学院,安徽淮南 232038；安徽理工大学地球与环境学院,安徽淮南 232001
何杰	安徽理工大学地球与环境学院,安徽淮南 232001；安徽理工大学化学工程学院,安徽淮南 232001
徐从波	淮南联合大学制药与材料学院,安徽淮南 232038
赵玲玲	安徽理工大学化学工程学院,安徽淮南 232001
王丽平	淮南联合大学制药与材料学院,安徽淮南 232038

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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硫酸盐，但Ag2O-NiTi-LDH复合材料光催化氧化降解效率高于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 bandgap energy of Ag2O-NiTi-LDH composite lower than that of its precursors, 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 sulfates, however, the photocatalytic degradation efficiency of the composite Ag2O-NiTi-LDH has a much higher than that of Ag2O.

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