Construction of biomimetic metallo-covalent organic polymers for photocatalytic decontamination of sulfur mustard simulants

IF 4.1 2区工程技术 Q2 ENGINEERING, CHEMICAL

Chemical Engineering Science Pub Date : 2025-05-08 DOI:10.1016/j.ces.2025.121812

Chen Sun , Xiao-Lin Liu , Sai-Jin Xiao , Qiang Shi , Zhi-Hao Xue , Yu-Ting Luo , Ru-Ping Liang , Li Zhang , Jian-Ding Qiu

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Abstract

Sulfur mustard (HD) poses a serious threat to the security of the society, hence the exploration of efficient catalysts for the degradation of HD is of paramount importance. Photocatalytic oxidation of HD by metallo-covalent organic polymers (M-COPs) under mild conditions demonstrates great potential due to their abundant metal active sites and excellent photoelectric properties. Herein, a metal complex crystal (Cy-Ag-Cy) was prepared by the specific interaction between the biological small molecule cytosine and silver ions, which can react with 1,3,6,8-tetra(4-formylphenyl)pyrene (TFPPy) to construct Ag-COP via Schiff base condensation reaction. The Ag-COP exhibits high oxidative selectivity and favorable degradation efficiency against the sulfur mustard simulant (CEES) with a half-life of 5.5 min under UV lamp irradiation. This work presents a novel strategy for the synthesis of M-COPs and expands their applications as photocatalysts for chemical warfare agent decontamination.

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用于芥子气模拟物光催化净化的仿生金属共价有机聚合物的构建

芥子气对社会安全构成严重威胁，因此探索高效的芥子气降解催化剂具有重要意义。金属共价有机聚合物（m - cop）具有丰富的金属活性位点和优异的光电性能，在温和条件下光催化氧化HD具有很大的潜力。本文利用生物小分子胞嘧啶与银离子的特异性相互作用制备了金属配合物Cy-Ag-Cy晶体，该晶体可与1,3,6,8-四（4-甲酰苯基）芘（TFPPy）通过席夫碱缩合反应构建Ag-COP。Ag-COP在紫外灯照射下表现出较高的氧化选择性和对硫芥模拟物（CEES）的良好降解效率，半衰期为5.5 min。这项工作提出了一种新的合成m - cop的策略，并扩展了它们作为化学战剂净化光催化剂的应用。

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来源期刊

Chemical Engineering Science 工程技术-工程：化工

CiteScore

7.50

自引率

8.50%

发文量

1025

审稿时长

50 days

期刊介绍： Chemical engineering enables the transformation of natural resources and energy into useful products for society. It draws on and applies natural sciences, mathematics and economics, and has developed fundamental engineering science that underpins the discipline. Chemical Engineering Science (CES) has been publishing papers on the fundamentals of chemical engineering since 1951. CES is the platform where the most significant advances in the discipline have ever since been published. Chemical Engineering Science has accompanied and sustained chemical engineering through its development into the vibrant and broad scientific discipline it is today.