水滑石类材料光催化降解有机污染物研究进展

Research Progress in Photocatalytic Degradation of Organic Pollutants by Using Hydrotalcite Materials

针对废水中浓度较高有机污染物这一处理难点,光催化技术因其降解充分、深度高效、节能环保等特点而受到广泛重视。本文指出水滑石类材料作为一种新型的光催化材料,独特的层状结构使其具有优异的光催化性能,成为光催化降解有机污染物领域的研究热点。本文以二元、三元入手,分别介绍了水滑石类材料通过调控离子种类和配比、氧化、负载、焙烧,以提高光催化降解有机污染物性能的研究进展;并结合水滑石类材料现状,对水滑石类材料在光催化降解有机污染物方面的研究方向进行了展望。

In response to the difficult of high concentration of organic pollutants in wastewater treatment,photocatalytic technology has been widely valued due to its characteristics of full degradation,deep efficiency,energy conservation and environmental protection.This paper points out that as a new type of photocatalytic material,hydrotalcite materials have excellent photocatalytic performance due to their unique layered structure,making them a research hotspot in the field of photocatalytic degradation of organic pollutants.This paper starts with binary and ternary methods,and introduces the research progress of hydrotalcite materials in improving the photocatalytic degradation performance of organic pollutants by regulating ion types and ratios,oxidation,loading,and calcination;and based on the current situation of hydrotalcite materials,the research direction of hydrotalcite materials in photocatalytic degradation of organic pollutants is prospected.