Iron-Cobalt magnetic porous carbon beads activated peroxymonosulfate for enhanced degradation and Microbial inactivation

Zihan Li; Wuxiang Zhang; Xingyu Liu; Xingang Wang; Hongliang Dai; Fangyan Chen; Yubin Tang; Jiansheng Li

doi:10.1016/j.jcis.2023.09.018

Iron-Cobalt magnetic porous carbon beads activated peroxymonosulfate for enhanced degradation and Microbial inactivation

J Colloid Interface Sci. 2023 Dec 15;652(Pt B):1878-1888. doi: 10.1016/j.jcis.2023.09.018. Epub 2023 Sep 7.

Authors

Zihan Li¹, Wuxiang Zhang², Xingyu Liu¹, Xingang Wang¹, Hongliang Dai¹, Fangyan Chen¹, Yubin Tang¹, Jiansheng Li³

Affiliations

¹ School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, PR China.
² School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, PR China. Electronic address: wxz133@just.edu.cn.
³ Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, PR China. Electronic address: lijsh@mail.njust.edu.cn.

PMID: 37688934
DOI: 10.1016/j.jcis.2023.09.018

Abstract

Magnetic carbon-based catalysts are promising materials for advanced oxidation processes, offering both high catalytic activity and environmental friendliness, and hold great potential in environmental remediation. In this work, Fe and Co zeolite imidazole frameworks (ZIFs) derived micron-sized magnetic porous carbon beads (MPCBs) were prepared by phase inversion and following the carbonization procedure, and the morphological and structural characteristics of the MPCBs were confirmed. The presence of pores and channels in the MPCBs provides a specific microenvironment for the for the catalysis of the core. Bisphenol A (BPA) was selected for the targeted pollutant, and the catalytic experiments confirmed that the effective catalytic activity of MPCBs in the presence of peroxymonosulfate (PMS), which could almost completely degrade BPA in 20 min with a reaction rate of 0.368 min^-1. Furthermore, the MPCBs were used to effectively bacterial inactivation. Intermediate products of the BPA degradation process were validated and the toxicological studies showed a gradual decrease in toxicity, indicating effective reduction of potential hazards. The macroscopic preparation methods we developed for MPCBs that is promising for industrial applications and has the potential to cope with complex environmental remediation.

Keywords: BPA degradation; Magnetic porous carbon beads; Microbial inactivation; Water treatment.