高炉渣基光催化材料在废水处理领域的研究进展

Research Progress of Blast Furnace Slag Based Photocatalytic Materials in Wastewater Treatment

高炉渣作为钢铁行业的一类大宗固废,其高附加值利用一直是相关行业的研究重点,对钢铁行业的绿色发展具有重要意义。以高炉渣为研究对象,综述了近5年来其作为光催化材料用于污水处理领域的研究进展。介绍了高炉渣的基本情况,包括其形成组成、作光催化材料的可行性、国内外综合利用现状和综合利用中存在的问题;简要阐明光催化技术的发展现状,内容涉及其作用机理、性能改善方式和发展趋势;说明高炉渣作光催化材料净化废水的研究进展,并就现有文献对其光催化效率影响因素和提高方式进行了讨论;最后对高炉渣基光催化材料的处理方式和应用方式进行了归纳总结,并对其持续性的资源化利用进行了展望。

Blast furnace slag is a type of bulk solid waste generated by the iron and steel industry. The high value-added utilization of blast furnace slag has been the focus of research in the relevant industries, which is of great significance to the green development of the steel industry. This work focuses on blast furnace slag and reviews the progress of its use as a photocatalytic material for wastewater treatment in the last five years. Firstly, we introduce the basic information of blast furnace slag, such as the formation and mineral composition of blast furnace slag, the feasibility of using it as a photocatalytic material, the current situation of comprehensive utilization at home and abroad, and the problems in comprehensive utilization. Secondly, the current status of photocatalytic technology is briefly explained, covering its mechanism of action, performance improvement methods and development trends. Then, the progress of research on blast furnace slag as a photocatalytic material for wastewater purification is described. The existing literature on the factors affecting its photocatalytic efficiency and ways to improve it are discussed. Finally,the treatment and application of blast furnace slag-based photocatalytic materials are summarized, and its sustainable resource utilization is also prospected.