Fast and Long‐Lasting Iron(III) Reduction by Boron Toward Green and Accelerated Fenton Chemistry | Zendy

Zhou Peng | Zendy; Ren Wei | Zendy; Nie Gang | Zendy; Li Xiaojie | Zendy; Duan Xiaoguang | Zendy; Zhang Yongli | Zendy; Wang Shaobin | Zendy

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Fast and Long‐Lasting Iron(III) Reduction by Boron Toward Green and Accelerated Fenton Chemistry

Author(s) -

Zhou Peng,

Ren Wei,

Nie Gang,

Li Xiaojie,

Duan Xiaoguang,

Zhang Yongli,

Wang Shaobin

Publication year - 2020

Publication title -

angewandte chemie

Language(s) - English

Resource type - Journals

eISSN - 1521-3757

pISSN - 0044-8249

DOI - 10.1002/ange.202007046

Subject(s) - boron , chemistry , radical , reactivity (psychology) , hydroxyl radical , inorganic chemistry , metal , photochemistry , organic chemistry , medicine , alternative medicine , pathology

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. Here, 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 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.

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