Technology development in nano-sized photocatalyst powder preparation technologies

Abstract

Nano-sized semiconductor powders for use as photocatalysts have great potential in environmental and energy engineering applications. The photocatalytic activity of photocatalyst is significantly affected by preparation process since the crystalline structure of photocatalyst is dependent on preparation conditions. This paper aims to give an overview of the research progress of nano-sized photocatalyst powder preparation technologies, including solid route, gas phase route, and liquid route. The advantages and disadvantages of different preparation technologies are analyzed and compared. The research direction and prospect of photocatalyst preparation method is analyzed.

纳米半导体材料作为光催化剂在环境、能源领域具有广阔的应用前景。光催化剂的制备过程对催化剂的晶体结构有重要的影响,从而影响其光催化活性。本文较系统地综述了国内外对光催化剂纳米粉体制备的研究进展,包括固相法、气相法和湿化学法。对比分析了各种制备技术的优缺点,并对今后的研究方向和应用前景进行了分析。