Photochemical transformation of benzotriazole, relevant to sunlit surface waters: Assessing the possible role of triplet-sensitised processes.

Sci Total Environ

Università degli Studi di Torino, Dipartimento di Chimica, Via P. Giuria 5, 10125 Turin, Italy(1); Università degli Studi di Torino, Centro Interdipartimentale NatRisk, Via L. Da Vinci 44, 10095 Grugliasco (TO), Italy(2). Electronic address:

Published: October 2016


Category Ranking

98%

Total Visits

921

Avg Visit Duration

2 minutes

Citations

20

Article Abstract

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.scitotenv.2016.05.119DOI Listing

Publication Analysis

Top Keywords

photochemical transformation
4
transformation benzotriazole
4
benzotriazole relevant
4
relevant sunlit
4
sunlit surface
4
surface waters
4
waters assessing
4
assessing role
4
role triplet-sensitised
4
triplet-sensitised processes
4

Similar Publications

Reactive oxygen species (ROS)-mediated photodegradation mechanism of 2,4'-DDT in the irradiated Pearl River Suspended Particulate Matter-water system.

Environ Pollut

September 2025

State Key Laboratory of Water Pollution Control and Green Resource Recycling, School of the Environment, Nanjing University, Nanjing 210023, Jiangsu, China. Electronic address:

o,p'-dichlorodiphenyltrichloroethane (2,4'-DDT) is a typical persistent organic pollutant (POP) characterized by environmental persistence and acute toxicity. Its pronounced hydrophobicity drives preferential adsorption onto suspended particulate matter (SPM) in aquatic systems. This study systematically investigated the photochemical transformation mechanism of 2,4'-DDT in the Pearl River SPM-water system.

View Article and Find Full Text PDF

Photochemical behavior of colloidal lignin particles under controlled UV exposure: Balancing self-stabilization and degradation.

Int J Biol Macromol

September 2025

"Materials + Technologies" Research Group (GMT), Department of Chemical and Environmental Engineering, Faculty of Engineering of Gipuzkoa, University of Basque Country UPV/EHU, Donostia-San Sebastian, 20018, Spain. Electronic address:

Colloidal Lignin Particles (CLPs), with their polyphenolic structure, are promising sustainable alternatives to chemical UV filters. This study investigates the photochemical behavior of CLPs under ultraviolet irradiation synthetized from five different technical raw lignins (Alkali, Organosolv, two Enzymatic Hydrolyzed and Softwood Kraft Lignin) via solvent-shift procedure. The suspensions were irradiated using a self-developed UV-pen set-up and a commercially available UV chamber, enabling controlled UV exposure over time.

View Article and Find Full Text PDF

Photochemical Production of Singlet Oxygen by Toronto Road Dust.

Environ Sci Technol

September 2025

Department of Chemistry & Chemical Biology, McMaster University, Hamilton, Ontario L8S 4M1, Canada.

Road dust, which consists of brake and tire wear, pavement particles, crustal material, semivolatile vehicle exhaust components, and natural organic matter, can contribute to both airborne particulate matter and urban runoff. To date, research has mainly focused on the health impact of road dust, but little work has been conducted to characterize its role as a reactive surface in the environment. Our group has previously shown that illuminated road dust is a source of singlet oxygen, an important environmental oxidant.

View Article and Find Full Text PDF

Dicyanopyrazine: 10th Anniversary in Photoredox Catalysis.

Chem Rec

September 2025

Institute of Organic Chemistry and Technology, Faculty of Chemical Technology, University of Pardubice, Studentská 573, Pardubice, 532 10, Czechia.

The last decade unveiled dicyanopyrazine as a purely organic photocatalyst capable of initiating a variety of unprecedented photoredox transformations. The latest discoveries also pointed to a facile Mallory-type photocyclization of the catalyst to quinoxaline-2,3-dicarbonitrile derivative, which proved to be the active catalytic species. Its principal photochemical properties involve the absorption band covering the blue spectral region, a sufficiently long-lived triplet, and the reversible first reduction accompanied by the formation of the corresponding radical anion.

View Article and Find Full Text PDF

Photochemical carbosulfonylative cross-coupling of alkenes.

Org Biomol Chem

September 2025

Centre for Synthesis and Chemical Biology, UCD School of Chemistry, University College Dublin, Ireland.

A photochemical carbosulfonylative protocol for the formation of C-S and C-C bonds between sulfinate salts and alkenes is reported. This approach couples two alkene molecules to give access to highly functionalized sp sulfone products. Homo-coupled and polarity mismatched cross-coupled products were obtained.

View Article and Find Full Text PDF