The role of hydroxylation on·OH generation for enhanced ozonation of benzoic acids: Reactivity, ozonation efficiency and radical formation mechanism

[Display omitted] •Hydroxyl groups activated benzoic acid for enhanced reactivity with ozone.•Possible pathways for the generation of O2·- and·OH in ozonation of benzoic acids were proposed.•Plausible mechanism for the activated ozonation of benzoic acid was elucidated.•Synergistic effect in co-ozon...

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Bibliographic Details
Published in:Journal of hazardous materials 2022-06, Vol.431, p.128620-128620, Article 128620
Main Authors: Wang, Zhe, Lin, Xiaozi, Huang, Yuanxing, Ma, Luming
Format: Article
Language:English
Subjects:
Activated ozonation
Benzoates
Benzoic acid
Hydroxyl Radical
Hydroxylation
OH
Oxidation-Reduction
Ozone
Water Pollutants, Chemical - analysis
Water Purification
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Summary:[Display omitted] •Hydroxyl groups activated benzoic acid for enhanced reactivity with ozone.•Possible pathways for the generation of O2·- and·OH in ozonation of benzoic acids were proposed.•Plausible mechanism for the activated ozonation of benzoic acid was elucidated.•Synergistic effect in co-ozonation and reduced superiority in catalytic ozonation were observed with extra·OH production.
ISSN:0304-3894
1873-3336
DOI:10.1016/j.jhazmat.2022.128620