Journal ArticleDOI
Unraveling the Overlooked Involvement of High-Valent Cobalt-Oxo Species Generated from the Cobalt(II)-Activated Peroxymonosulfate Process
TLDR
The developed kinetic model successfully simulated PMSO loss, PMSO2 production, SMX degradation, and/or PMS decomposition under varying conditions, which further supported the proposed mechanism.Abstract:
Sulfate radical (SO4•–) is widely recognized as the predominant species generated from the cobalt(II)-activated peroxymonosulfate (PMS) process. However, in this study, it was surprisingly found th...read more
Citations
More filters
Journal ArticleDOI
Enhanced Oxidation of Organic Contaminants by Iron(II)-Activated Periodate: The Significance of High-Valent Iron-Oxo Species.
TL;DR: In this article, the authors proposed an efficient and environmental friendly process for the rapid removal of emerging contaminants and enriched the understandings on the evolution mechanism of ·OH in Fe(IV)-mediated processes.
Journal ArticleDOI
Persulfate Oxidation of Sulfamethoxazole by Magnetic Iron-Char Composites via Nonradical Pathways: Fe(IV) Versus Surface-Mediated Electron Transfer.
Jun Liang,Xiaoguang Duan,Xiaoyun Xu,Kexin Chen,Yue Zhang,Ling Zhao,Hao Qiu,Shaobin Wang,Xinde Cao +8 more
TL;DR: In this paper, two efficient magnetic iron-char composites via low-temperature (BCFe-400) and high temperature pyrolysis were developed via non-radical pathways for sulfamethoxazole (SMX) degradation.
Journal ArticleDOI
Toward Selective Oxidation of Contaminants in Aqueous Systems.
TL;DR: In this paper, the authors summarized the state-of-the-art selective oxidation strategies in water decontamination and probe the origins of selectivity, that is, the selectivity resulting from the reactivity of either oxidants or target pollutants, the selectiveivity arising from the accessibility of pollutants to oxidants via adsorption and size exclusion, as well as selectivity due to the interfacial electron transfer process and enzymatic oxidation.
Journal ArticleDOI
Assessment of the validity of the quenching method for evaluating the role of reactive species in pollutant abatement during the persulfate-based process.
TL;DR: In this article , the authors evaluated the effects of several commonly used quenchers (tert-butanol, methanol, ethanol, isopropanol, furfuryl alcohol, and L-histidine) on the mechanism of a cobalt mediated peroxymonosulfate (Co(II)/PMS) process.
Journal ArticleDOI
Interface Engineering of Co(OH)2 Nanosheets Growing on the KNbO3 Perovskite Based on Electronic Structure Modulation for Enhanced Peroxymonosulfate Activation.
TL;DR: In this paper , an interface architecture of Co(OH)2 nanosheets growing on the KNbO3 perovskite was developed, which showed high catalytic activity in peroxymonosulfate (PMS) activation.
References
More filters
Journal ArticleDOI
Critical Review of rate constants for reactions of hydrated electrons, hydrogen atoms and hydroxyl radicals (⋅OH/⋅O− in Aqueous Solution
TL;DR: In this article, the rate constants for over 3500 reaction are tabulated, including reaction with molecules, ions and other radicals derived from inorganic and organic solutes, and the corresponding radical anions, ⋅O− and eaq−, have been critically pulse radiolysis, flash photolysis and other methods.
Journal Article
Critical review of rate condtants for reaction of hydrated electrons, hydrogen atoms and hydroxyl radicals in aqueous solution
Journal ArticleDOI
Rate Constants for Reactions of Inorganic Radicals in Aqueous Solution
TL;DR: In this article, rate constants have been compiled for reactions of various inorganic radicals produced by radiolysis or photolysis, as well as by other chemical means in aqueous solutions.
Journal ArticleDOI
Radical generation by the interaction of transition metals with common oxidants.
TL;DR: Nine transition metals were tested for the activation of three oxidants and the generation of inorganic radical species such as sulfate, peroxymonosulfate, and hydroxyl radicals to postulate the rate-determining step of the redox reactions taking place when a metal is coupled with an oxidant in aqueous solution.
Journal ArticleDOI
Generation of sulfate radical through heterogeneous catalysis for organic contaminants removal: Current development, challenges and prospects
TL;DR: In this paper, the authors provide a state-of-the-art review on the development in heterogeneous catalysts including single metal, mixed metal, and nonmetal carbon catalysts for organic contaminants removal, with particular focus on peroxymonosulfate (PMS) activation.