项目名称: 石墨炔增强的半导体金属氧化物光催化剂的设计合成
项目编号: No.51302266
项目类型: 青年科学基金项目
立项/批准年度: 2014
项目学科: 一般工业技术
项目作者: 金泉
作者单位: 中国科学院过程工程研究所
项目金额: 25万元
中文摘要: 本项目以光催化降解空气中挥发性有机污染物为切入点,从增强催化材料内部光生电子的传导以及污染物和降解产物的传输出发,进行材料设计。通过优良电子受体材料-石墨炔与光催化剂-半导体金属氧化物的复合,提高电子传输性能,抑制光生电子与空穴的复合。研究石墨炔对半导体金属氧化物光催化性能的增强机制,从而实现高效光催化降解有机污染物。总结半导体金属氧化物石墨炔复合材料的合成规律,在制备过程中对复合方式、复合比例进行调控;同时对半导体金属氧化物的结构进行设计,制备由纳米粒子堆砌构筑的空心球结构,提高催化剂有效活性位点同时提高气体在催化剂中的传输。系统研究半导体金属氧化物石墨炔复合材料的制备及光催化性能,探明结构、组成与性质的相互关系,为半导体金属氧化物石墨炔复合材料在降解空气污染物中的应用奠定基础。
中文关键词: 光催化;石墨炔;半导体金属氧化物;;
英文摘要: This application aims at photocatalytic degradation of air pollutants, which will start from the design of the materials, in accordance with the principle of improving the electron transport and transmission of contaminants and degradation products in the material. By compositing graphdiyne (electron acceptor material) with semiconductor metal oxides, improve the electron transport properties of the material and avoid the recombination of the electron-hole. The enhanced photocatalytic properties of graphdiyne composited semiconductor metal oxide material will be studied. During the synthesis process, the mode and proportion of composite will be controlled as much as possible. Design the structure of semiconductor metal oxides; prepare a nanoparticles constructed hollow spherical structure, to improve the effective activity sites and gas transmission rate of the catalyst. The relationship of structure, composition and properties will be discussed. The technique of preparing semiconductor metal oxides graphdiyne composite materials with high-performance will finally realized through the implementation of the project, which will provide basis for fabrication and benefit development of photocatalytic degradation of air pollutants.
英文关键词: photocatalytic;graphdiyne;semiconductor metal oxides;;