等离子体光催化剂在典型 EDCs降解与耦合制氢中的研究

项目名称： 等离子体光催化剂在典型 EDCs降解与耦合制氢中的研究

项目编号： No.51508168

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 其他

项目作者： 亓丽芳

作者单位： 湖北第二师范学院

项目金额： 20万元

中文摘要： 内分泌干扰物（EDCs）的环境分布广、生物危害大、作用持久且难降解，对其治理已经刻不容缓。利用光催化技术降解污染物与制氢是能源、环境与催化领域的前沿性热点课题。本项目为内分泌干扰物的治理及资源化利用提供了一个新的思路，拟利用等离子体光催化剂在可见光照射下使其降解的同时并制备氢气。首先通过水热、微波水热、化学还原等方法制备等离子体光催化剂，考察贵金属的种类、含量及化学态、光催化剂的组成及微纳结构等与可见光光催化降解内分泌干扰物及耦合制氢性能的内在联系，探究贵金属纳米颗粒提高等离子体光催化剂可见光光催化活性与稳定性的作用机制，揭示光生载流子的迁移与分离规律，重点阐明2-4种典型内分泌干扰物的降解及耦合制氢机理。本项目的开展可以丰富等离子体光催化剂的制备方法，为发展新型高效的内分泌干扰物降解去除与资源化利用技术提供实验依据与理论指导。

中文关键词： 内分泌干扰物；等离子体光催化剂；可见光；降解；制氢

英文摘要： It is urgent to remove endocrine disrupting chemicals (EDCs) due to their wide distribution in the environment, great health hazard to living organisms, persistent impact and hard degradability. Photocatalytic degradation of organic pollutants and production of hydrogen are hotspots in renewable energy, environmental protection and catalytic investigation. This project will provide insight into the treatment and recycling of EDCs, which mainly focuses on the efficient degradation of EDCs with simultaneous production of hydrogen by using visible-light-driven plasmonic photocatalysts, which will be prepared using various approaches such as hydrothermal synthesis, microwave hydrothermal synthesis and chemical reduction. The effects of content, kind and chemical status of noble metal, composition and microstructure of photocatalysts on the visible-light-driven photocatalytic performance of composite photocatalysts toward typical EDCs-degradation with simultaneous production of hydrogen will be investigated. The mechanism of noble metal nanoparticles in enhancing the visible-light-driven photocatalytic activity and stability of plasmonic photocatalysts, the rule of transfer and separation of photoinduced charges, as well as the underlying reaction mechanism of 2-4 typical EDCs-degradation with simultaneous H2-production will be discussed. The implementation of this project will enrich the methods for the fabrication of plasmonic photocatalysts and provide theoretical and experimental guidance for the development of advanced and efficient methods for the degradation and recycling of EDCs.

英文关键词： Endocrine disrupting chemicals;plasmonic photocatalysts;visible light;degradation;hydrogen production