纳米二氧化钛的制备及其在环保领域的应用

Preparation of nano-sized titanium dioxide and its application in the field of environmental protection

概述了纳米二氧化钛光催化剂的制备方法及其在环保领域的应用,展望了该材料今后的发展方向。介绍了制备纳米二氧化钛的不同方法,主要包括气相法、液相法、固相法。分析了各种制备方法的原理、特点、应用及最新研究进展,比较了不同制备方法的优缺点。此外,介绍了纳米二氧化钛材料在气体净化、抗菌除臭、处理有机污染物、防雾及自清洁涂层等环保领域的应用。同时指出,降低生产成本,制备团聚程度低、粒度分布窄、催化活性高的纳米二氧化钛粒子是今后研究的重点。

This paper not only discussed the preparing methods of nano-sized titanium dioxide （nano -TiO2） photocatalyst and its application in the field of enviromnental protection, but also proposed the developing tendency of this material. Different methods for preparing nano - TiO2 were introduced, which mainly included gas phase method, liquid phase method and solid phase method etc.. The preparing principle, characteristics, application and latest research progress of each method were analyzed. The advantages and disadvantages of these methods were compared. Furthermore, the application of this material in gas purification, anti - bacterial and deodorization, organic pollutants treatment, self - cleaning and anti - fogging coat etc. was introduced. At the same time, it also pointed out that the future study should be directed at the reducing the production cost and preparing the nano- TiO2 particles with light aggregation, narrow distribution and high photocatalytic activity.