功能化UiO-66/GO光催化剂的微波合成及其光响应特性研究

The Light Response Characteristics of Functionalized UiO-66/GO Photocatalyst Synthesized by Microwave-Assisted Preparation

光催化降解是一种有效的环境修复方法,金属有机骨架材料(MOFs)具有高比表面积、丰富的拓扑结构和易于调节的多孔结构等优点,近年来,在光催化领域引起了越来越多的关注。利用方便的微波辅助一步法,合成了氨基化UiO-66/GO复合材料,并用于去除水中有机染料的可见光催化降解。氧化石墨烯(GO)含有大量的羟基和羧基,可以用来捕获电子、促进电子移动和限制光子产生载流子的复合。通过对功能化UiO-66/GO光响应特性的研究证实了GO的加入可以有效提高氨基化UiO-66的结构稳定性和光稳定性,抑制光腐蚀,提升光催化降解效果。

Photocatalytic degradation is an effective environmental remediation method.Recently,metal organic framework materials(MOFs)have attracted more attention in the field of photocatalysis because of the advantages of high specific surface area,rich topological structure and easily adjustable porous structure.The aminoated UiO-66/GO composites were synthesized by a one-step microwave-assisted method and used for visible light photocatalytic degradation of organic dyes in water.Graphene oxide(GO)contains a large number of hydroxyl and carboxyl groups,which can be used to capture electrons,promote electron transfer and limit the recombination of photocarriers.Through the study on the light response characteristics of functionalized UiO-66/GO,it is confirmed that the structural stability and photostability of UiO-66-NH_(2)were improved,the light corrosion was inhibited,and the photocatalytic degradation effect was enhanced by the addition of GO.