Significant enhancement of pesticide and organic dyes degradation by ion-exchange within a metal-organic framework

被引：24

作者：

Su, Meijie ^{[1
]}

Li, Huijun ^{[1
]}

He, Xinglei ^{[1
]}

Xu, Zhouqing ^{[1
]}

机构：

[1] Henan Polytech Univ, Coll Chem & Chem Engn, Jiaozuo 454000, Henan, Peoples R China

来源：

POLYHEDRON | 2022年 / 215卷

基金：

中国国家自然科学基金; 奥地利科学基金会;

关键词：

Metal-organic frameworks; Ion-exchange; Photocatalytic degradation; Acetamiprid; Methylene blue; PHOTOCATALYTIC ACTIVITY; IN-SITU; POLLUTANTS; MOF;

D O I：

10.1016/j.poly.2022.115651

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A Metal-Organic Framework (MOF) by the formula of {[Cd-4(L)(2)(H2O)(3)]center dot 4 center dot 5H(2)O}(n) (HPU-15-Cd) (H4L = 5, 5'-oxydiisophthalic acid) has been synthesized via solvothermal method. The central ions of HPU-15-Cd can occur ion-exchange with Co2+/Cu2+ ions to form the isostructural HPU-15-Co, HPU-15-Cu in a single-crystal-to-single crystal fashion. Photocatalytic experiments showed that HPU-15-Co, HPU-15-Cu had better photocatalytic activity for the degradation of acetamiprid (ACT) and methylene blue (MB) than HPU-15-Cd. The reason is that the band gap width of HPU-15-Co and HPU-15-Cu is narrow, which makes it have higher absorption and utilization of UV-visible light. Besides, HPU-15-Cd, HPU-15-Co, HPU-15-Cu have excellent stability, and the catalytic effect of HPU-15-Cu are basically unchanged after three cycles of catalytic degradation of ACT and MB.

引用

页数：8

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