Spent LiFePO4 : An old but vigorous peroxymonosulfate activator for degradation of organic pollutants in water

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Pu Wang
  • Xiaoyi Lou
  • Qianqian Chen
  • Yujing Liu
  • Xiaohu Sun
  • Yaoguang Guo
  • Xiaojiao Zhang
  • Ruixue Wang
  • Zhaohui Wang
  • Shuai Chen
  • Li Zhang
  • Jie Guan

Related Research Unit(s)

Detail(s)

Original languageEnglish
Article number113780
Journal / PublicationEnvironmental Research
Volume214
Issue numberPart 1
Online published29 Jun 2022
Publication statusPublished - 1 Nov 2022

Abstract

Iron-based catalysts have been demonstrated to activate peroxymonosulfate (PMS) to generate reactive radicals, which is however limited by their complex preparation process, high costs and inefficiency for practical applications. Herein we obtain spent LiFePO4 (SLFP), with powerful catalytic capacity by a simple one-step treatment of the retired LiFePO4 cathode material, for PMS activation to decontaminate organic pollutants. Lithium defects and oxygen vacancies in SLFP play critical roles for PMS utilization, further confirmed by density functional theory (DFT) calculations. SLFP materials rapidly adsorb PMS, and the surface PMS is activated by Fe(II) to generate radicals, with OH playing a major role for the degradation of organics after multi-step reactions. The SLFP/PMS process is finally validated for ability to remove organic contaminants and potential environmental application.

Research Area(s)

  • Advanced oxidation processes, Catalysis, Hydroxyl radical, Peroxymonosulfate, Quantum chemical calculations

Citation Format(s)

Spent LiFePO4 : An old but vigorous peroxymonosulfate activator for degradation of organic pollutants in water. / Wang, Pu; Lou, Xiaoyi; Chen, Qianqian et al.

In: Environmental Research, Vol. 214, No. Part 1, 113780, 01.11.2022.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review