Cited by 68Photochemistry and Electron Transfer StudiesAdvanced oxidation water treatmentAdvanced Photocatalysis Techniques

Production of reactive oxygen species on photolysis of dilute aqueous quinone solutions

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Garg, Shikha, Rose, Andrew L., Waite, T. David·2007·Photochemistry and Photobiology

Abstract

We have examined the generation of the reactive oxygen species (ROS) superoxide and hydrogen peroxide (H 2 O 2 ) by irradiation of dilute aqueous solutions of disodium anthraquinone‐2‐6‐disulfonate (AQDS) with simulated sunlight. Irradiating a solution of AQDS in 2 m M NaHCO 3 and 0.01 M NaCl produced superoxide and H 2 O 2 at nanomolar concentrations. Experiments in which initial concentrations of dioxygen, H 2 O 2 , the superoxide radical trap nitroblue tetrazolium and the electron donor dimethyl sulfoxide were varied suggested that the interaction of solvent water with photo‐excited quinone moieties produces dioxygen‐reducing radicals, and that these are the primary source of ROS in the system. A kinetic model for ROS production is proposed based on our experimental data.

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Crossref · 10.1111/j.1751-1097.2007.00075.x

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  • Mechanism 3 shows the formation of O2•− from 1O2 using furfuryl alcohol, fullerenes or quinones as specific inhibitors of 1O2.

    “Mechanism 3 shows the formation of O2•− from 1O2 (1O2 is generated from O2 sensitisation by rose bengal) using furfuryl alcohol [42], fullerenes [43] or quinones [44] as specific inhibitors of 1O2, Figure 25.”

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Authors
Garg, S., Rose, A. L., & Waite, T. D.
Affiliations
UNSW Sydney (AU)
Corresponding author
Waite, T. David
Venue
Photochemistry and Photobiology
Publisher
Wiley
Published
2007-07
Volume
83
Issue
4
Pages
904-913
ISSN
  • 0031-8655 (ISSN-L)
  • 1751-1097
OpenAlex
W1846758701
Cited by
68
References
35
Citations by year
2026: 2 · 2025: 7 · 2024: 5 · 2023: 3 · 2022: 5 · 2021: 5 · 2020: 4 · 2019: 5 · 2018: 4 · 2017: 2 · 2015: 3 · 2014: 5 · 2013: 3 · 2012: 6
FWCI
1.31
Type
journal article
Language
en
Open access
Locations
  • Photochemistry and Photobiology (publishedVersion)
  • PubMed (publishedVersion)
  • Cross Connect (Southern Cross University) (submittedVersion)
  • UNSWorks (UNSW Sydney) (submittedVersion, cc-by-nc-nd)
  • UNSWorks (University of New South Wales, Sydney, Australia) (submittedVersion, cc-by-nc-nd)
Topics
  • Physical Sciences › Chemistry › Physical and Theoretical Chemistry › Photochemistry and Electron Transfer Studies
  • Physical Sciences › Environmental Science › Water Science and Technology › Advanced oxidation water treatment
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Advanced Photocatalysis Techniques
Keywords
reactive oxygen species, superoxide, hydrogen peroxide, anthraquinone-2,6-disulfonate, photolysis, simulated sunlight, dioxygen reduction, nitroblue tetrazolium, dimethyl sulfoxide, kinetic model
MeSH terms
Hydrogen Peroxide, Oxygen, Photochemistry, Solutions, Benzoquinones, Reactive Oxygen Species

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