金属基反应型离子液体中碳基复合材料的构筑及其光催化降解酚类污染物研究

项目名称： 金属基反应型离子液体中碳基复合材料的构筑及其光催化降解酚类污染物研究

项目编号： No.21206060

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 化学工程及工业化学

项目作者： 夏杰祥

作者单位： 江苏大学

项目金额： 28万元

中文摘要： 光催化技术作为一种新兴高级氧化技术，在污染物治理方面受到越来越多的关注。本课题拟采用长碳链烷基/腈基咪唑盐和季铵盐与金属配合物阴离子(卤代金属盐，金属氰基配合物等)构建金属基反应型离子液体，该类离子液体阳离子具有表面活性功能，阴离子具有金属离子控制释放功能。以功能化金属基反应型离子液体为直接反应源、分散剂和模板剂，在特定反应气氛下原位可控合成非金属掺杂金属氧化物/多孔石墨碳复合光催化材料。该复合光催化材料将非金属元素掺杂，多孔石墨碳的吸附、分散和良好的电子传输性能与半导体材料良好的光催化性能相结合，实现石油化工废水中苯酚等酚类有机污染物的高效可见光光催化降解。运用一系列表征手段研究金属氧化物/多孔石墨碳复合光催化材料的组成、结构与酚类污染物降解活性之间的内在关系及污染物降解的动力学模型。通过原位谱学研究反应过程中复合光催化材料降解酚类污染物的降解机理。

中文关键词： 离子液体；光催化；复合材料；；

英文摘要： Photocatalytic technology is one kind of green advanced oxidation technology, which has been widely used in environmental pollutant treatment. This program is designed to prepare metal complex reactable ionic liquids which are composed of longer alkyl/nitrile grouping carbon chain cations and metal complex anions. The cations of these special metal ionic liquids have surfactivity ability and the anions have the controlled release of metal ion ability. The metal oxide/porous graphitic carbon complex materials will be synthesized through a one-pot in situ process in the presence of reactable ionic liquid, and the metal complex reactable ionic liquid played the role of dispersing agent, reactant and template at the same time. The metal oxide/porous graphitic carbon complex materials will coupled nonmetal doping, the adsorption, dispersion and well electron transport of porous graphitic carbon with the favourable photocatalysis of semiconductor in order to achieve efficient degradation of phenols in water under the visible light irradiation. The relationship between the structure of the metal oxide/porous graphitic carbon photocatalyst and the photocatalytic activities will be studied in details. The dynamical model and possible reactive mechanism for degradation of phenols pollutants will be well studied with the i

英文关键词： ionic liquids；photocatalysis；composites；；