水滑石基可见光响应型复合光催化剂薄膜的研制及其光催化性能研究

项目名称： 水滑石基可见光响应型复合光催化剂薄膜的研制及其光催化性能研究

项目编号： No.51268047

项目类型： 地区科学基金项目

立项/批准年度： 2013

项目学科： 建筑科学

项目作者： 涂新满

作者单位： 南昌航空大学

项目金额： 51万元

中文摘要： 本项目针对当前光催化技术存在的光催化剂回收难、催化效率较低、太阳能利用率低等关键问题，围绕着开发"具有可见光响应的新型复合光催化剂薄膜"这一目标，以无机材料水滑石（LDHs）为前体，充分利用LDHs结构上的优点，即层板金属元素原子级的分散、层板金属元素和层间阴离子的可调控性，旨在研究制备多功能的"水滑石基可见光响应型复合光催化剂薄膜"的技术和原理，并将该薄膜应用于有机污染物处理，考察其光催化降解性能。在此基础上利用压电石英谐振测量技术实时监测有机污染物在催化剂薄膜表面的吸附-降解动态过程，揭示光催化降解有机污染物的催化机理和吸附-催化协同效应，以进一步丰富光催化降解的相关理论。以上研究将为新型光催化剂的设计和制备以及光催化高效降解有机污染物提供理论依据和技术支持。

中文关键词： 水滑石；薄膜；复合；可见光；光催化

英文摘要： This project is aimed at the existence problem in photocatalytic technology, such as the photocatalysts recovery difficulties, low photocatalytic efficiency, low solar utilization rate. The target is to develop the novel composite photocatalyst films with visible light response. By using inorganic material layered double hydroxides ( LDHs ) as the precursor, making full use of the advantages of LDHs structure (Laminates metallic element of atomic-level dispersion, laminate metal elements and anions in the interlayer regulative), the preparation technology and principle of multifunctional composite photocatalyst films with visible light response will be studied. The films will be applied to the treatment of organic pollutants, and investigated its photocatalytic degradation performance. By using piezoelectric quartz resonator measurement technology, adsorption and degradation of dynamic process of of organic pollutants on catalyst film surface will be real-time monitord, in order to reveal the photocatalytic degradation mechanism of organic pollutants and adsorption-catalytic synergetic effect, and further enrich l photocatalytic degradation theory. The above research will provide new theoretical basis and technical support for optical catalyst design and preparation, and photocatalytic degrading organic pollutan

英文关键词： layered double hydroxide；films；composite；visible light；photocatalysis