Articles | Volume 22, issue 8
https://doi.org/10.5194/acp-22-5651-2022
https://doi.org/10.5194/acp-22-5651-2022
Research article
 | 
28 Apr 2022
Research article |  | 28 Apr 2022

Aqueous chemical bleaching of 4-nitrophenol brown carbon by hydroxyl radicals; products, mechanism, and light absorption

Bartłomiej Witkowski, Priyanka Jain, and Tomasz Gierczak

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Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on acp-2021-871', Anonymous Referee #1, 23 Nov 2021
  • RC2: 'Comment on acp-2021-871', Anonymous Referee #2, 03 Dec 2021
  • RC3: 'Comment on acp-2021-871', Anonymous Referee #3, 11 Dec 2021
  • AC1: 'Comment on acp-2021-871', Bartlomiej Witkowski, 24 Jan 2022

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Bartlomiej Witkowski on behalf of the Authors (24 Jan 2022)  Author's response    Author's tracked changes    Manuscript
ED: Referee Nomination & Report Request started (26 Jan 2022) by Ryan Sullivan
RR by Anonymous Referee #2 (10 Feb 2022)
RR by Anonymous Referee #3 (01 Mar 2022)
ED: Publish subject to minor revisions (review by editor) (07 Mar 2022) by Ryan Sullivan
AR by Anna Mirena Feist-Polner on behalf of the Authors (16 Mar 2022)  Author's response    Author's tracked changes    Manuscript
ED: Publish subject to minor revisions (review by editor) (20 Mar 2022) by Ryan Sullivan
AR by Bartlomiej Witkowski on behalf of the Authors (29 Mar 2022)  Author's response    Author's tracked changes    Manuscript
ED: Publish as is (01 Apr 2022) by Ryan Sullivan
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Short summary
This article describes a comprehensive investigation of the aqueous oxidation of 4-nitrophenol (4NP) by hydroxyl radicals (OH). The reaction was carried out in a laboratory photoreactor. We report the formation of key intermediates under different pH conditions and the evolution of the light absorption of the reaction solution. The results provide new insights into the formation and removal (chemical bleaching) of light-absorbing organic aerosols (atmospheric brown carbon).
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