Chemical Engineering Journal, volume 435, pages 134695

Bio-synthesis of Co-doped FeMnOx and its efficient activation of peroxymonosulfate for the degradation of moxifloxacin

Publication typeJournal Article
Publication date2022-05-01
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor15.1
ISSN13858947
General Chemistry
General Chemical Engineering
Industrial and Manufacturing Engineering
Environmental Chemistry
Abstract
• Preparing and polishing methods significantly impacted the PMS activation of Bio-FeMnCoO x . • The effects of water matrix and reaction conditions were studied. • The MOX degradation kinetic constant of Bio-FeMnCoO x was 7 times that of the chemically synthesized peer. • The main reactive oxygen species were •SO 4 - and 1 O 2 . • MOX-TPs were identified and their toxicity evaluated. Metal oxides can effectively activate peroxymonosulfate (PMS) to degrade organic contaminants but are usually synthesized via chemical/physical processes involving extreme conditions and hazardous materials. In this study, an innovative bio-synthesis method with a strain of manganese oxidizing bacteria Pseudomonas sp. was developed to prepare multiple metal oxides consisting of iron, manganese, and cobalt (Bio-FeMnCoO x ) for degrading moxifloxacin (MOX) with PMS. It was found that the cultivation time, the dosage of Co, the polishing method are the key parameters regulating the PMS activation performance of Bio-FeMnCoO x . Under the optimal preparing conditions, the MOX degradation kinetic constant of obtained Bio-FeMnCoO x was 7 times that of the chemically synthesized peer. Analysis with XRD, EPS and SEM with EDS mapping showed an amorphous structure of Bio-FeMnCoO x with well distributed Fe, Mn, and Co. Radical quenching and EPR spin-trapping tests demonstrated that SO 4 •- and 1 O 2 were the main reactive oxygen species. The transformation products of MOX were identified by UPLC-QTOF-MS/MS and the possible degradation pathways were accordingly proposed. The respiratory test showed that the toxicity of MOX was reduced by approximately 69% after the degradation with PMS activated by Bio-FeMnCoO x . The study demonstrates the potential of biogenic metal oxides for efficiently activating PMS.

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Xu A. et al. Bio-synthesis of Co-doped FeMnOx and its efficient activation of peroxymonosulfate for the degradation of moxifloxacin // Chemical Engineering Journal. 2022. Vol. 435. p. 134695.
GOST all authors (up to 50) Copy
Xu A., Wu D., Zhang R., Fan S., Lebedev A. T., Zhang Y. Bio-synthesis of Co-doped FeMnOx and its efficient activation of peroxymonosulfate for the degradation of moxifloxacin // Chemical Engineering Journal. 2022. Vol. 435. p. 134695.
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RIS Copy
TY - JOUR
DO - 10.1016/j.cej.2022.134695
UR - https://doi.org/10.1016%2Fj.cej.2022.134695
TI - Bio-synthesis of Co-doped FeMnOx and its efficient activation of peroxymonosulfate for the degradation of moxifloxacin
T2 - Chemical Engineering Journal
AU - Xu, Anlin
AU - Wu, Donghong
AU - Zhang, Ren
AU - Fan, Siyan
AU - Lebedev, Albert T.
AU - Zhang, Yongjun
PY - 2022
DA - 2022/05/01 00:00:00
PB - Elsevier
SP - 134695
VL - 435
SN - 1385-8947
ER -
BibTex
Cite this
BibTex Copy
@article{2022_Xu
author = {Anlin Xu and Donghong Wu and Ren Zhang and Siyan Fan and Albert T. Lebedev and Yongjun Zhang},
title = {Bio-synthesis of Co-doped FeMnOx and its efficient activation of peroxymonosulfate for the degradation of moxifloxacin},
journal = {Chemical Engineering Journal},
year = {2022},
volume = {435},
publisher = {Elsevier},
month = {may},
url = {https://doi.org/10.1016%2Fj.cej.2022.134695},
pages = {134695},
doi = {10.1016/j.cej.2022.134695}
}
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