纳米磁载TiO2光催化剂及其催化与循环利用研究

The purpose of this work is to synthesize a kind of suspended photocatalyst which is carried by magnetic particles. Comparing to supported photocatalysis suspended photocatalysis is more effective in reaction. However, how to separate the phtotcatalyst from the solution after the reation is still a problem. Photocatalyst carried by magnetic particles with its magnetism has the property to be separated by magnetic field from the solution. This study mainly concerned with the combination of photocatalyst and magnetic particles, the correlation of position between photocatalyst and the carriers, and the properties of the combined photocatalyst such as magnetism, photocatalytic ability and separation ability.

光催化氧化是目前水处理研究的热点之一。纳米级二氧化钛颗粒具有优良的光催化性能，但难以与水分离使其实用性受到?碍。本研究从物理、化学、矿物学的基础理论出发，利用纳米技术、制备纳米级磁载二氧化钛光催化剂;并研究粒度、二?化钛膜厚度及晶型等与光催化性能的关系；研究其回收与循?使用，为悬浮态二氧化钛光催化氧化的实用奠定基础。.