Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/127242
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Type: Journal article
Title: Fast and long-lasting Fe(Ⅲ) reduction by boron toward green and accelerated Fenton chemistry
Author: Zhou, P.
Ren, W.
Nie, G.
Li, X.
Duan, X.
Zhang, Y.
wang, S.
Citation: Angewandte Chemie International Edition, 2020; 59(38):1-10
Publisher: Wiley
Issue Date: 2020
ISSN: 1433-7851
1521-3773
Statement of
Responsibility: 
Peng Zhou, Wei Ren, Gang Nie, Xiaojie Li, Dr. Xiaoguang Duan, Yongli Zhang, Shaobin Wang
Abstract: Generation of hydroxyl radicals in the Fenton system (Fe(II)/H 2 O 2 ) is seriously limited by the sluggish kinetics of Fe(III) reduction and fast Fe(III) precipitation. For the first time, we discover that boron crystals (C-Boron) remarkably accelerate the Fe(III)/Fe(II) circulation in Fenton-like systems (C-Boron/Fe(III)/H 2 O 2 ) to produce a myriad of hydroxyl radicals with excellent efficiencies in oxidative degradation of various pollutants. The surface B-B bonds and interfacial suboxide boron in the surface B 12 icosahedra are the active sites to donate electrons to promote fast Fe(III) reduction to Fe(II) and further enhance hydroxyl radical production via the Fenton chemistry. The C-Boron/Fe(III)/H 2 O 2 system outperforms the benchmark Fenton (Fe(II)/H 2 O 2 ) and Fe(III)-based sulfate radical systems. The reactivity and stability of crystalline boron is much higher than the popular molecular reducing agents, nanocarbons, and other metal/metal-free nanomaterials. Therefore, the discovery opens up a new avenue to leveraging metal-free boron for green oxidation and fast environmental decontamination.
Keywords: Boron; Fenton-like system; catalytic oxidation; hydroxyl radical; metal-free catalysis
Description: First published: 30 June 2020
Rights: © 2020 Wiley‐VCH GmbH
RMID: 1000022677
DOI: 10.1002/anie.202007046
Grant ID: http://purl.org/au-research/grants/arc/DP190103548
Appears in Collections:Chemical Engineering publications

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