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二茂铁-MIL-101(Fe)非均相催化剂活化过硫酸盐降解双酚A

Activation of persulfates by ferrocene-MIL-101(Fe) heterogeneous catalyst for degradation of bisphenol A.

作者信息

Wang Yu, Guo Weilin, Li Xianghui

机构信息

School of Water Conservancy and Environment, University of Jinan Jinan 250022 P. R. China

出版信息

RSC Adv. 2018 Oct 29;8(64):36477-36483. doi: 10.1039/c8ra07007e. eCollection 2018 Oct 26.

DOI:10.1039/c8ra07007e
PMID:35558948
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9088819/
Abstract

In this study, a novel and high-performance catalyst was prepared and used as the heterogeneous catalyst to activate persulfate for bisphenol A (BPA) degradation. Ferrocene was anchored to NH-MIL-101(Fe) post-synthetically by the condensation of amine group from NH-MIL-101(Fe) with the carbonyl group of ferrocenecarboxaldehyde. The synthesized ferrocene tethered MIL-101(Fe)-ferrocene was characterized by scanning electron microscopy, Fourier transform infrared spectroscopy, X-ray diffraction, X-ray photo-electron spectra, cyclic voltammetry and electrochemical impedance spectroscopy. The ferrocene acts as a redox mediator, which makes the ferrocene functionalized NH-MIL-101(Fe) highly active in the degradation of BPA by accelerating the rate of the charge-transfer processes in aqueous solution. MIL-101(Fe)-Fc was proved to be the most effective catalyst, removing more than 99.9% of BPA. In addition, the catalyst can be reused without significant loss in activity.

摘要

在本研究中,制备了一种新型高性能催化剂,并将其用作非均相催化剂来活化过硫酸盐以降解双酚A(BPA)。通过NH-MIL-101(Fe)中的胺基与二茂铁甲醛的羰基缩合,将二茂铁后合成锚定到NH-MIL-101(Fe)上。通过扫描电子显微镜、傅里叶变换红外光谱、X射线衍射、X射线光电子能谱、循环伏安法和电化学阻抗谱对合成的二茂铁 tethered MIL-101(Fe)-二茂铁进行了表征。二茂铁作为氧化还原介质,通过加速水溶液中电荷转移过程的速率,使二茂铁功能化的NH-MIL-101(Fe)在BPA降解中具有高活性。MIL-101(Fe)-Fc被证明是最有效的催化剂,可去除超过99.9%的BPA。此外,该催化剂可重复使用,活性无明显损失。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1da4/9088819/767715960db5/c8ra07007e-f9.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1da4/9088819/82dedea78d9d/c8ra07007e-f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1da4/9088819/767715960db5/c8ra07007e-f9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1da4/9088819/e46b1ec0b458/c8ra07007e-f1.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1da4/9088819/9d199b73aa67/c8ra07007e-f4.jpg
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