Highly selective photo-hydroxylation of phenol using ultrathin NiFe-layered double hydroxide nanosheets under visible-light up to 550 nm

Jikang Wang; Yanqi Xu; Jiaxin Li; Xiaodong Ma; Si-Min Xu; Rui Gao; Yufei Zhao; Yu-Fei Song

doi:10.1039/D0GC02786C

Highly selective photo-hydroxylation of phenol using ultrathin NiFe-layered double hydroxide nanosheets under visible-light up to 550 nm†

Jikang Wang,^a Yanqi Xu,^ab Jiaxin Li,^a Xiaodong Ma,^a Si-Min Xu,^a Rui Gao,^c Yufei Zhao

*^a and Yu-Fei Song

*^a

Author affiliations

* Corresponding authors

^a State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, 100029 Beijing, P. R. China
E-mail: songyf@mail.buct.edu.cn, zhaoyufei@mail.buct.edu.cn
Fax: +86 10 64431832
Tel: +86 10 64431832

^b College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China

^c School of Chemistry and Chemical Engineering, Inner Mongolia University, 010021 Hohhot, P. R. China

Abstract

Dihydroxybenzenes (DHB) are one of the most important fine chemicals used as raw materials or intermediates in industries. One-step selective phenol hydroxylation using a photo-Fenton system is an attractive and challenging strategy, especially under long-wavelength irradiation. Herein, we report that a highly selective photo-driven Fenton hydroxylation reaction of phenol to DHB can be achieved over NiFe-layered double hydroxide nanosheets (NiFe-NS) under visible-light irradiation with 70% phenol conversion and ∼99% DHB selectivity. A more interesting finding is that a high phenol conversion (∼40%) activity can be maintained even under monochromatic irradiation at 550 nm. The superior photocatalytic activity was attributed to the abundant defects in NiFe-NS, which facilitated the adsorption of hydrogen peroxide (H₂O₂) onto the catalyst surface and promoted the transfer efficiency of photoinduced electrons from the catalyst to H₂O₂, generating ˙OH radicals to participate in the hydroxylation of phenol.

Supplementary files

Article information

DOI: https://doi.org/10.1039/D0GC02786C
Article type: Paper
Submitted: 14 Aug 2020
Accepted: 24 Oct 2020
First published: 26 Oct 2020

Download Citation

Green Chem., 2020,22, 8604-8613

Permissions

Request permissions

Highly selective photo-hydroxylation of phenol using ultrathin NiFe-layered double hydroxide nanosheets under visible-light up to 550 nm

J. Wang, Y. Xu, J. Li, X. Ma, S. Xu, R. Gao, Y. Zhao and Y. Song, Green Chem., 2020, 22, 8604 DOI: 10.1039/D0GC02786C

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Green Chemistry

Highly selective photo-hydroxylation of phenol using ultrathin NiFe-layered double hydroxide nanosheets under visible-light up to 550 nm†

Abstract

Supplementary files

Article information

Download Citation

Permissions

Highly selective photo-hydroxylation of phenol using ultrathin NiFe-layered double hydroxide nanosheets under visible-light up to 550 nm

Social activity

Search articles by author

Spotlight

Advertisements