Please use this identifier to cite or link to this item:
|Scopus||Web of Science®||Altmetric|
|Title:||Fast and long-lasting Fe(Ⅲ) reduction by boron toward green and accelerated Fenton chemistry|
|Citation:||Angewandte Chemie International Edition, 2020; 59(38):1-10|
|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|
|Appears in Collections:||Chemical Engineering publications|
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.