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The synthesis of novel Co-Al2O3 nanofibrous membranes with efficient activation of peroxymonosulfate for bisphenol A degradation

Abstract

Novel Co-Al2O3 nanofibrous membranes have been successfully fabricated via the facile electrospinning method. The Co-Al2O3 membranes are composed of nanofibers, and exhibit good flexibility, high tensile stress and excellent catalytic activation of peroxymonosulfate (PMS) to degrade organic pollutants in water. The divalent cobalt ions distribute uniformly in the fibers by forming the Al-O-Co bond, which is responsible for the catalytic activity of the membranes. 100% bisphenol A (BPA) could be removed within 40 min using the 11% Co-Al2O3-600 oC membrane with PMS addition. Electron spin resonance (ESR) and free radical quenching experiments indicate that sulfate radical (SO4•−) and hydroxyl radical (•OH) are generated, and SO4•− is the dominate active species in the reaction. The findings of this work suggest the great potentials of the Co-Al2O3 membranes in water remediation area, and open up new avenues for preparing novel membrane form heterogeneous catalysts.

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Publication details

The article was received on 31 Mar 2018, accepted on 13 Jun 2018 and first published on 14 Jun 2018


Article type: Paper
DOI: 10.1039/C8EN00366A
Citation: Environ. Sci.: Nano, 2018, Accepted Manuscript
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    The synthesis of novel Co-Al2O3 nanofibrous membranes with efficient activation of peroxymonosulfate for bisphenol A degradation

    Y. Wang, S. Zhao, W. Fan, Y. Tian and X. Zhao, Environ. Sci.: Nano, 2018, Accepted Manuscript , DOI: 10.1039/C8EN00366A

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