光催化
沸石咪唑盐骨架
光降解
咪唑酯
金属有机骨架
材料科学
可见光谱
降级(电信)
化学工程
复合数
催化作用
纳米技术
吸附
化学
复合材料
有机化学
光电子学
电信
计算机科学
工程类
作者
Bahar Jeyhoon,Vahid Safarifard
标识
DOI:10.1002/slct.202304515
摘要
Abstract Metal‐organic frameworks (MOFs) are promising materials for photocatalytic applications due to their unique properties. Core‐shell MOFs have recently emerged as a particularly attractive subclass of MOFs, offering enhanced light absorption, charge separation capabilities, and stability. In this study, we synthesized UiO‐66‐NH 2 @ZIF‐67 and UiO‐66‐NH 2 @ZIF‐8 core‐shell structures using UiO‐66‐NH 2 , ZIF‐67, and ZIF‐8. We found that UiO‐66‐NH 2 @ZIF‐67 exhibited a photocatalytic tetracycline (TC) degradation rate that was five times higher than that of pure UiO‐66‐NH 2 under visible light. Furthermore, UiO‐66‐NH 2 @ZIF‐67 demonstrated superior stability and recyclability, maintaining its efficiency for five cycles. The photocatalytic removal efficiency of TC over UiO‐66‐NH 2 @ZIF‐67 under visible light reached 97 % in just 60 minutes. In this study, the two MOFs with a high surface area, one with a large bandgap and one with the ability to absorb visible light were combined to construct the desire core‐shell structure. Our results offer a novel and convenient strategy for synthesizing highly effective and stable core‐shell MOF‐on‐MOF photocatalysts for photodegradation and TC degradation.
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