Green synthesis of manganese-cobalt-tungsten composite oxides for degradation of doxycycline via efficient activation of peroxymonosulfate

Xuewen Luo; Yujie You; Mingjun Zhong; Lin Zhao; Yingying Liu; Rongliang Qiu; Zhujian Huang

doi:10.1016/j.jhazmat.2021.127803

Green synthesis of manganese-cobalt-tungsten composite oxides for degradation of doxycycline via efficient activation of peroxymonosulfate

J Hazard Mater. 2022 Mar 15:426:127803. doi: 10.1016/j.jhazmat.2021.127803. Epub 2021 Nov 19.

Authors

Xuewen Luo¹, Yujie You¹, Mingjun Zhong¹, Lin Zhao¹, Yingying Liu¹, Rongliang Qiu², Zhujian Huang³

Affiliations

¹ Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, 483 Wushan St., Guangzhou 510642, China.
² Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, 483 Wushan St., Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, College of Natural Resources and Environment, South China Agricultural University, 483 Wushan St., Guangzhou 510642, China.
³ Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, 483 Wushan St., Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, College of Natural Resources and Environment, South China Agricultural University, 483 Wushan St., Guangzhou 510642, China. Electronic address: zjhuang@scau.edu.cn.

PMID: 34862104
DOI: 10.1016/j.jhazmat.2021.127803

Abstract

The advanced oxidation process of peroxymonosulfate activated by solid catalyst is one of the main technologies to solve the pollution of antibiotics in water environment.In this work, a series of composites (MCW) containing Mn, Co, and W were synthesized using green ball milling, which does not produce the three wastes (waste gas, waste water and industrial residue). It shows a unique and high catalytic activity for peroxymonosulfate-based degradation of doxycycline (DC) under the pH condition between 4 and 9, and it can be reused five times. MCW composites remove DC using singlet oxygen and superoxide free radicals, as well as a large number of oxygen vacancies for electron storage. The formation rate of free radicals is determined by the conversion rates of Mn³⁺/Mn²⁺ and Co³⁺/Co²⁺. In addition, there are three ways to degrade DC to form 18 kinds of intermediates, and the toxicity of all the intermediates were predicted by ECOSAR program. The highly active catalysts obtained using a green synthetic route for the activation of peroxymonosulfate show a great potential for decontamination of antibiotics wastewater.

Keywords: Ball milling; Peroxymonosulfate; Reusability; Singlet oxygen; Toxicity prediction.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Cobalt
Doxycycline*
Manganese*
Oxides
Peroxides
Tungsten

Substances

Oxides
Peroxides
peroxymonosulfate
Cobalt
Manganese
Doxycycline
Tungsten