添加H2O2的cu配合物在可见光下降解有机染料和磺胺类抗生素的简易合成

IF 1 4区工程技术 Q4 ENGINEERING, CHEMICAL

Desalination and Water Treatment Pub Date : 2023-01-01 DOI:10.5004/dwt.2023.29506

Dawei Wang, Xue-bin Ji, Zhengjun Shi

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引用次数: 0

摘要

本文采用水热法合成了铜配合物[Cu(biba) 2]·h2o (biba = 2-(1h -苯并咪唑-2-基)苯甲酸)，并用单晶x射线衍射、粉末x射线衍射、紫外-可见漫反射光谱、拉曼光谱和傅里叶变换红外光谱对其进行了结构表征。[Cu(biba) 2]·h2o在可见光下对亚甲基蓝(MB)染料和磺胺嘧啶(SD)抗生素的降解表现出良好的光催化活性。反应80 min后，MB的降解效率可达93.1%，反应60 min后，SD的降解效率可达96.8%以上。研究了[Cu(biba) 2]·h2o / h2o催化体系对MB和SD的降解动力学，观察到一级动力学速率常数(k)分别为0.0340和0.0573 min -1。基于实验结果，提出了一种合理的光- fenton氧化机理。

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Facile synthesis of Cu-complex for visible-light photodegradation of organic dyes and sulfonamide antibiotics with added H2O2

In this article, copper complex [Cu(biba) 2 ]·H 2 O (biba = 2-(1H-benzoimidazol-2-yl)benzoic acid) was synthesized via hydrothermal method, and structurally characterized by single-crystal X-ray diffraction, powder X-ray diffraction, UV-Vis diffuse reflectance spectra, Raman spectra and Fourier-transform infrared spectroscopy. [Cu(biba) 2 ]·H 2 O exhibited good photocatalytic activities in degradation of methylene blue (MB) dye and sulfadiazine (SD) antibiotic under visible light with added H 2 O 2 . The degradation efficiency of MB was up to 93.1% after reacting for 80 min, and the degradation efficiency of SD was over 96.8% after reacting for 60 min. The degradation kinetics of MB and SD under [Cu(biba) 2 ]·H 2 O/H 2 O 2 catalytic system was studied, and the observed first-order kinetics rate constants ( k ) were 0.0340 and 0.0573 min –1 , respectively. Based on the experimental results, a reasonable mechanism was proposed to interpret the photo-Fenton oxidation process.

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来源期刊

Desalination and Water Treatment 工程技术-工程：化工

CiteScore

2.20

自引率

9.10%

发文量

审稿时长

5.3 months

期刊介绍： The journal is dedicated to research and application of desalination technology, environment and energy considerations, integrated water management, water reuse, wastewater and related topics.