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

Yu Wang; Weilin Guo; Xianghui Li

doi:10.1039/c8ra07007e

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

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

Authors

Yu Wang¹, Weilin Guo¹, Xianghui Li¹

Affiliation

¹ School of Water Conservancy and Environment, University of Jinan Jinan 250022 P. R. China chm_guowl@ujn.edu.cn.

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 NH₂-MIL-101(Fe) post-synthetically by the condensation of amine group from NH₂-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 NH₂-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.