仿生活化氧功能金属酞菁-半导体复合材料的制备及其协同催化效应研究

项目名称： 仿生活化氧功能金属酞菁-半导体复合材料的制备及其协同催化效应研究

项目编号： No.51302241

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： 李大鹏

作者单位： 许昌学院

项目金额： 25万元

中文摘要： 仿生催化氧化技术作为耗能低、效率高、环境友好的污染物控制方法一直受到环境科学界的重视，低成本、高稳定性的仿生活化氧功能金属酞菁不仅能够对污染物绿色降解，还能够吸收太阳光谱的可见光敏化半导体载体。因此，设计和开发新型仿生活化氧功能的金属酞菁并构建半导体复合材料实现仿生催化、可见光催化功能的集成具有重要的学术意义。本项目以最新发现的具有仿生活化O2功能四硝基铁(II)酞菁为模板化合物，拟通过改变半导体载体的晶体结构、表面形貌及控制金属酞菁的负载方式和负载量，设计具有高催化活性的金属酞菁-半导体复合材料，探究金属酞菁与半导体间的电荷迁移规律和各种活性物种产生规律，揭示金属酞菁与半导体间承担的仿生催化和光催化功能以及产生于二者间的协同催化作用机理，藉此开发具有仿生催化和光催化协同催化作用的新型金属酞菁-半导体复合催化剂，为环境污染物的治理开辟一条新途径。

中文关键词： 金属酞菁；催化；氧化；；

英文摘要： Biomimetic catalytic oxidation as a low cost, high efficient and environmental friendly technology for pollutant control has been the great research interest in the field of environment science. The low cost and high stable biomimetic metal phthalocyanine (MPc) with the function of oxygen activation could not only biodegrade chemical contaminants, but also absorb the visual light in full solar spectra for the sensitization of semiconductor supports. Therefore, it is of significance that design and synthesis of novel biomimetic MPc complexes for construction of MPc-semiconductor composite materials. In this study we would load biomimetic tetranitro iron (II) phthalocyanine (TNFe(II)Pc) (or similar biomimetic MPc) with the function of oxygen activation on different semiconductor supports for preparation of various MPc-semiconductor composite catalysts. We would investigate the influence of the crystal structure and surface morphology of different semiconductors, the loading method and content of MPc on the catalytic activity of composite catalyst. The mechanism of charge transfer between MPc and semiconductor and the generation process of active species on composite catalyst was also studied. Moreover, the synergistic effect of biomimetic catalysis from MPc and photocatalysis from semiconductor would be investigat

英文关键词： Metal phthalocyanine；catalysis；oxidation；；