Activation of peracetic acid via Co3O4 with double-layered hollow structures for the highly efficient removal of sulfonamides: Kinetics insights and assessment of practical applications

Sulfonamides (SAs) have been of ecotoxicological concern for ambient ecosystems due to their widespread application in the veterinary industry. Herein, we developed a powerful advanced oxidation peracetic acid (PAA) activation process for the remediation of SAs by Co3O4 with double-layered hollow st...

Full description

Saved in:
Bibliographic Details
Published in:Journal of hazardous materials 2022-06, Vol.431, p.128579-128579, Article 128579
Main Authors: Wu, Jianqing, Zheng, Xiaoshan, Wang, Yingfei, Liu, Haijin, Wu, Yuliang, Jin, Xiaoyu, Chen, Ping, Lv, Wenying, Liu, Guoguang
Format: Article
Language:English
Subjects:
acute toxicity
cobalt oxide
ecotoxicology
industry
mass transfer
Metal-organic frameworks
mineralization
Organic radical species
oxidation
Peracetic acid
photolysis
Practical application
remediation
species
Sulfonamides
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Sulfonamides (SAs) have been of ecotoxicological concern for ambient ecosystems due to their widespread application in the veterinary industry. Herein, we developed a powerful advanced oxidation peracetic acid (PAA) activation process for the remediation of SAs by Co3O4 with double-layered hollow structures (Co3O4 DLHSs). Systematic characterization results revealed that the polyporous hollow hierarchical structure endows Co3O4 DLHSs with abundant active reaction sites and enhanced mass transfer rate, which were conducive for improving the PAA activation efficiency. Laser flash photolysis experiment and mechanism studies indicated that organic radical species were dominant reactive species for SAs removal. The present system is also highly effective under natural water matrices and trace SAs concentration (20 μg/L) condition. More importantly, the chlorella acute toxicity of the SAs solution was eliminated during mineralization process, supporting this catalytic system may be efficaciously applied for the remediation of SAs contamination in ambient waterways. [Display omitted] •Co3O4 DLHSs was firstly synthesized as the PAA activator, which displayed excellent capacity for Sulfonamides removal.•The in-depth understanding of the reaction mechanism of PAA activation process.•SAs transformation pathway and toxicity assessment were comprehensively analyzed.•The remediation of sulfonamides in practical wastewater treatment was achieved.
ISSN:0304-3894
1873-3336
DOI:10.1016/j.jhazmat.2022.128579