非均相暗芬顿降解有机染料的多价铜聚吡啶配位聚合物

IF 3.4 2区 化学 Q2 CHEMISTRY, MULTIDISCIPLINARY
Lei Li*, Xin-Sheng Wang, Jun-Jie Wang, Binhui Qin, Changbo Shi, Bingjie Du, Jinrui Yang, Yan Bai* and Dong-Bin Dang*, 
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引用次数: 0

摘要

有机染料降解材料的开发是环境保护和废水处理的一个很有前途的替代方案。本文采用溶剂热法合成了一种混价铜多吡啶配位聚合物[CuIICuI2(DNP*)Cl3(SCN)]n·2nCH3CN (1) (DNP* = 2,6-二(1,6-萘啶-2-基)吡啶),该聚合物具有二维(2D)结构,其CuI/II中心由DNP*和SCN -阴离子连接。由于崔/II中心的不饱和配位和价态循环,配合物1在黑暗条件下表现出优异的Fenton降解活性,降解率为93.5%(亚甲基蓝,MB), 80.0%(罗丹明B, RhB)和80.1%(甲基橙,MO)。以MB为例,研究了Fenton催化降解途径和机理。MB的降解符合一级反应动力学模型,总有机碳(TOC)去除率为24.6%,反应活化能为81.52 kJ·mol-1。本研究提出了一种开发多价配位聚合物处理废水的有效策略。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

A Multivalent Copper Polypyridyl Coordination Polymer for Heterogeneous Dark-Fenton Degradation of Organic Dyes

A Multivalent Copper Polypyridyl Coordination Polymer for Heterogeneous Dark-Fenton Degradation of Organic Dyes

The development of materials for organic dye degradation is a promising alternative for environmental protection and wastewater treatment. Herein, a mixed-valence copper polypyridyl coordination polymer [CuIICuI2(DNP*)Cl3(SCN)]n·2nCH3CN (1) (DNP* = 2,6-di(1,6-naphthyridin-2-yl)pyridine) has been solvothermally synthesized and demonstrates a two-dimensional (2D) structure with CuI/II centers connected by DNP* and SCN anions. Owing to unsaturated coordination sites and valence state cycling of CuI/II centers, complex 1 exhibits excellent Fenton degradation activity with rates of 93.5% (for Methylene blue, MB), 80.0% (for Rhodamine B, RhB) and 80.1% (for Methyl Orange, MO) under dark conditions within 120 min. The Fenton catalytic degradation pathways and mechanisms were investigated by selecting MB as an example. Furthermore, the MB degradation follows the first-order reaction kinetic model, exhibiting a total organic carbon (TOC) removal rate of 24.6% and a reaction activation energy of 81.52 kJ·mol–1. This work presents an effective strategy for wastewater treatment by developing multivalent coordination polymers.

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来源期刊
Crystal Growth & Design
Crystal Growth & Design 化学-材料科学:综合
CiteScore
6.30
自引率
10.50%
发文量
650
审稿时长
1.9 months
期刊介绍: The aim of Crystal Growth & Design is to stimulate crossfertilization of knowledge among scientists and engineers working in the fields of crystal growth, crystal engineering, and the industrial application of crystalline materials. Crystal Growth & Design publishes theoretical and experimental studies of the physical, chemical, and biological phenomena and processes related to the design, growth, and application of crystalline materials. Synergistic approaches originating from different disciplines and technologies and integrating the fields of crystal growth, crystal engineering, intermolecular interactions, and industrial application are encouraged.
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