A Co-Fe Prussian blue analogue for efficient Fenton-like catalysis: the effect of high-spin cobalt

Chunxiao Zhao; Biao Liu; Xuning Li; Kaixin Zhu; Ruisheng Hu; Zhimin Ao; Junhu Wang

doi:10.1039/c9cc01872g

A Co-Fe Prussian blue analogue for efficient Fenton-like catalysis: the effect of high-spin cobalt

Chem Commun (Camb). 2019 Jun 25;55(50):7151-7154. doi: 10.1039/c9cc01872g. Epub 2019 May 23.

Authors

Chunxiao Zhao¹, Biao Liu², Xuning Li³, Kaixin Zhu⁴, Ruisheng Hu⁵, Zhimin Ao², Junhu Wang⁴

Affiliations

¹ College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, China and Mössbauer Effect Data Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China. wangjh@dicp.ac.cn.
² Institute of Environmental Health and Pollution Control, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China. zhimin.ao@gdut.edu.cn.
³ School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore 637459, Singapore.
⁴ Mössbauer Effect Data Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China. wangjh@dicp.ac.cn.
⁵ College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, China.

PMID: 31119224
DOI: 10.1039/c9cc01872g

Abstract

Herein, we, for the first time, report a high spin Co-Fe Prussian blue analogue (Co-Fe PBA) as a highly efficient Fenton-like catalyst for sulfate radical (SO₄˙^-) production. Our experiments and density functional theory (DFT) calculations show that the largely elongated SO₄-OH bond length, strengthened adsorption and facilitated electron transfer for peroxymonosulfate (PMS) activation catalyzed by high-spin (HS) Co^II are the main factors contributing to its excellent activity.