全太阳光谱驱动纳米结构OMS-2催化净化挥发性有机污染物

项目名称： 全太阳光谱驱动纳米结构OMS-2催化净化挥发性有机污染物

项目编号： No.21473127

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 有机化学

项目作者： 李远志

作者单位： 武汉理工大学

项目金额： 90万元

中文摘要： 挥发性有机物（VOCs）严重危害人们的身体健康，光催化技术提供了一种有效的VOCs净化方法，但根据现行光催化原理，高效全太阳光谱光催化，特别是红外光光催化难以实现，发展全新的全太阳光谱驱动催化原理和催化材料是科学界的梦想和巨大挑战。本项目提出将具有分子筛结构的纳米隐钾锰矿（OMS-2）在全太阳光光谱范围的强吸收性能（光热转化使催化剂温度升高）与其优良的低温热催化性能有机结合，发展与现行光催化原理完全不同的全太阳光谱驱动光致热催化净化VOCs新原理和方法; 研究用不同金属离子取代纳米OMS-2孔道中K+离子等微结构和组成的调控方法，揭示纳米OMS-2的微结构和组成对晶格氧活性、光吸收性能以及全太阳光谱驱动催化净化VOCs活性等的影响规律，实现纳米结构OMS-2对VOCs的高效全太阳光谱驱动催化净化，为高效全太阳光谱驱动VOCs催化净化新材料-纳米结构OMS-2的设计提供科学依据和新思路。

中文关键词： 光催化；全太阳光谱驱动；纳米结构OMS-2；挥发性有机物

英文摘要： Volatile organic compounds (VOCs) are hazardous to human health. Photocatalytic technology provides an efficient approach for VOCs purification. However, according to the conventional photocatalysis principle, it would be impossible to realize full solar spectrum photocatalysis, especially infrared photocatalysis. Therefore, it is a dream of scientists and great challenge to develop novel principle and catalyst of full solar spectra light driven photocatalysis. In this the project, we develop a conceptually new approach of full solar spectra light driven thermocatalysis by combining both full solar spectrum light absorption and highly efficient thermocatalytic activity of nanostructured cryptomelane-type octahedral molecular sieve (OMS-2). We propose to investigate the methods of tuning the microstructure and composition of nanostructured OMS-2 by replacing the K+ ions inside the tunnel of OMS-2 by different metal ions. We will reveal the effect of the microstructure and composition of nanostructured OMS-2 on the lattice oxygen reactivity, solar absorption, full solar spectrum driven catalytic properties for VOCs purification. The project will realize highly efficient full solar spectrum driven catalytic purification of VOCs on nanostructured OMS-2, and provide important scientific evidence and new idea for designing full solar spectrum driven catalysts of nanostructured OMS-2 with high efficiency.

英文关键词： photocatalysis;full solar spectrum light driven;nano OMS-2;VOCs