1. Significant enhancement of pesticide and organic dyes degradation by ion-exchange within a metal–organic framework.
- Author
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Su, Meijie, Li, Huijun, He, Xinglei, and Xu, Zhouqing
- Subjects
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METHYLENE blue , *BIOPESTICIDES , *ION exchange (Chemistry) , *METAL-organic frameworks , *ORGANIC dyes , *CATALYSIS - Abstract
This paper reports a metal ion-exchange material which can significantly enhance the degradation of acetamiprid and methylene blue. [Display omitted] A Metal-Organic Framework (MOF) by the formula of {[Cd 4 (L) 2 (H 2 O) 3 ]·4·.5H 2 O} n (HPU-15-Cd) (H 4 L = 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. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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