Enhanced formation of bromophenols by anthraquinone-2-sulfonate and benzophenone: implications for photochemical production of organobromine compounds by dissolved organic matter in a marine environment*

2021 ◽  
Author(s):  
Hui Liu ◽  
Xiaojun Qiu ◽  
Xiaomei Zhu ◽  
Bing Sun ◽  
Xiaoxing Zhang
Keyword(s):  
Organic Matter ◽  
Dissolved Organic Matter ◽  
Marine Environment ◽  
Photochemical Production

scholarly journals Photochemical production of polyols arising from significant photo-transformation of dissolved organic matter in the oligotrophic surface ocean

2014 ◽  
Vol 163 ◽  
pp. 10-18 ◽  
Author(s):  
Michael Gonsior ◽  
Norbert Hertkorn ◽  
Maureen H. Conte ◽  
William J. Cooper ◽  
David Bastviken ◽  
...  
Keyword(s):  
Organic Matter ◽  
Dissolved Organic Matter ◽  
Surface Ocean ◽  
Photochemical Production

Measuring the Photochemical Production of Carbon Dioxide from Marine Dissolved Organic Matter by Pool Isotope Exchange

2009 ◽  
Vol 43 (22) ◽  
pp. 8604-8609 ◽  
Author(s):  
Wei Wang ◽  
Carl G. Johnson ◽  
Kazuhiko Takeda ◽  
Oliver C. Zafiriou
Keyword(s):  
Carbon Dioxide ◽  
Organic Matter ◽  
Dissolved Organic Matter ◽  
Isotope Exchange ◽  
Photochemical Production

Photochemical Production of Singlet Oxygen from Dissolved Organic Matter in Ice

2015 ◽  
Vol 49 (21) ◽  
pp. 12808-12815 ◽  
Author(s):  
Alexis Fede ◽  
Amanda M. Grannas
Keyword(s):  
Organic Matter ◽  
Dissolved Organic Matter ◽  
Singlet Oxygen ◽  
Photochemical Production

Assessing the Source of the Photochemical Formation of Hydroxylating Species from Dissolved Organic Matter Using Model Sensitizers

2021 ◽  
Author(s):  
Kylie Couch ◽  
Frank Leresche ◽  
Claire Farmer ◽  
Garrett McKay ◽  
Fernando Rosario
Keyword(s):  
Organic Matter ◽  
Dissolved Organic Matter ◽  
Singlet Oxygen ◽  
Natural Waters ◽  
Photochemical Formation ◽  
Photochemical Production

Dissolved organic matter (DOM) is ubiquitous in natural waters and can facilitate the chemi-cal transformation of many contaminants through the photochemical production of reactive inter-mediates, such as singlet oxygen (1O2),...

scholarly journals Optical Properties and Photochemical Production of Hydroxyl Radical and Singlet Oxygen after Ozonation of Dissolved Organic Matter

2021 ◽  
Author(s):  
Frank Leresche ◽  
Jeremy Torres ◽  
Tyler Kurtz ◽  
Urs von Gunten ◽  
Fernando Rosario
Keyword(s):  
Organic Matter ◽  
Optical Properties ◽  
Dissolved Organic Matter ◽  
Hydroxyl Radical ◽  
Singlet Oxygen ◽  
Light Absorption ◽  
Absorption Properties ◽  
Photochemical Production ◽  
Photochemical Properties

This study focuses on the effects of ozonation on the optical and photochemical properties of dissolved organic matter (DOM). Upon ozonation, a decrease in light absorption properties of DOM was...

Acid-base properties of dissolved organic matter extracted from the marine environment

2020 ◽  
Vol 729 ◽  
pp. 138437 ◽  
Author(s):  
Pablo Lodeiro ◽  
Carlos Rey-Castro ◽  
Calin David ◽  
Eric P. Achterberg ◽  
Jaume Puy ◽  
...  
Keyword(s):  
Organic Matter ◽  
Dissolved Organic Matter ◽  
Marine Environment ◽  
Acid Base ◽  
Base Properties

Dissolved organic matter and microbial food web interactions in the marine environment: the case of the Adriatic Sea

2000 ◽  
Vol 13 (1/2/3/4/5/6) ◽  
pp. 473 ◽  
Author(s):  
Alberto Puddu ◽  
Annamaria Zoppini ◽  
Maurizio Pettine
Keyword(s):  
Organic Matter ◽  
Dissolved Organic Matter ◽  
Food Web ◽  
Marine Environment ◽  
Adriatic Sea ◽  
Microbial Food Web ◽  
Food Web Interactions

scholarly journals Enhancement of Photo-bromination of Phenol by Anthraquinone-2-sulphonate and Benzophenone: Implication for Photo-production of Organic Brominated Compounds by Dissolved Organic Matter in Marine Environment

2021 ◽  
Author(s):  
Hui Liu ◽  
Xiaojun Qiu ◽  
Xiaomei Zhu ◽  
Bing Sun ◽  
Xiaoxing Zhang
Keyword(s):  
Organic Matter ◽  
Dissolved Organic Matter ◽  
Marine Environment ◽  
Bromide Solution ◽  
Reactive Halogen Species ◽  
Organohalogen Compounds ◽  
Halogenation Reaction ◽  
Photo Production ◽  
Halogen Species

Abstract Organobromine compounds are of great ecological risks due to their high toxicity on organisms. Photochemical halogenation reaction may represent an important natural formation process of natural organobromine compounds in marine environment. Here we reported the enhanced formation of bromophenols from phenol by sunlit anthraquinone-2-sulphonate (AQ2S) and benzophenone (BP) in aqueous bromide solutions. Quinones and aromatic ketones are ubiquitous components of dissolved organic matter (DOM) in surface waters, and AQ2S and BP were adopted here as proxies of DOM. Bromophenols’ formation increased with the increasing of the concentrations of AQ2S and BP, and the promotion effect was in the order AQ2S > BP, indicating that sunlit DOM plays an important role for the formation of reactive bromine species. Chloride was found to promote the formation of bromophenols obviously, suggesting a possible role of the mixed reactive halogen species. Finally, the natural DOM from Suwannee River was found to enhance photobromoination at a low concentration (1 mg L-1) in aqueous bromide solution. Our results demonstrated the importance of reactive halogen species generation from sunlit DOM, which possibly contributes to the abiotic source of organohalogen compounds in marine environment.

Sign in / Sign up

Export Citation Format

Share Document