Journal ArticleDOI
Nitrate-induced photooxidation of trace organic chemicals in water.
TLDR
The oxidation kinetics of butyl chloride, nitrobenzene, anisole, and methylmercury in the presence of hydroxyl radical (OH) scavengers were used to determine the rate and quantum efficiency for production of OH from irradiated nitrate ions in water.Abstract:
The oxidation kinetics of butyl chloride, nitrobenzene, anisole, and methylmercury in the presence of hydroxyl radical (OH) scavengers were used to determine the rate and quantum efficiency for production of OH from irradiated nitrate ions in water. The experiments were conducted under steady-state irradiations with monochromatic radiation (313 nm) and with sunlight. The mean quantum efficiency for OH production at 313 nm rises from 0.013 +/- 0.002 at 20 /sup 0/C to 0.017 +/- 0.003 at 30 /sup 0/C in the pH range 6.2-8.2. Results of this study are used to estimate nitrate-induced photooxidation rates of trace organic chemicals under a variety of environmental conditions. 27 references, 6 figures, 2 tables.read more
Citations
More filters
Journal ArticleDOI
Effects of sunlight on the fate of graphene oxide and reduced graphene oxide nanomaterials in the natural surface water.
TL;DR: In this paper , photodegradation of graphene nanomaterials with varying oxidation levels, including graphene oxide (GO), were evaluated in Columbia River Water and compared with each other, indicating that both direct and indirect photolysis of graphene-based nanommaterials will occur simultaneously in natural surface water.
Reference EntryDOI
Biogeochemische Regulation in limnischen Ökosystemen: Zur Ökologischen Bedeutung von Huminstoffen
TL;DR: The biogeochemischen and okologischen Rolle von toten organischen Stoffen in Binnengewassern is discussed in this paper, where all Organisms werden gefressen oder sterben and setzen auf diese Weise organische Substanzen frei, die letztendlich die Substrate fur die verschiedenen Humifizierungsprozesse sind.
Proceedings ArticleDOI
Degradation of Acetic Acid by UV/H2O2 Reaction
TL;DR: In this article, the photodegradation of acetic acid was carried out in the presence of UV/H petertodd 2�O�O�2� 2� 2 2Ⴗ 2ⓘ 2ⓘ for 4 hours under the optimum conditions.
Journal ArticleDOI
Process formulations and controlling factors of pesticide dissipation in artificial ponds: A critical review
Aya Bahi,Sabine Sauvage,Sylvain Payraudeau,Gwenaël Imfeld,José-Miguel Sánchez-Pérez,Betty Chaumet,Julien Tournebize +6 more
TL;DR: In this paper , the authors investigated the interactions and contribution of multiple processes to artificial pond dissipation function by comparing their rates evaluated at different scales and discussed the mathematical formulations of these processes and their relationship with pesticide properties.
Journal ArticleDOI
Mechanism and controlling factors on rapid methylmercury degradation by ligand-enhanced Fenton-like reaction at circumneutral pH.
Dingxi Zhang,Yuping Xiang,Guangliang Liu,Lina Liang,Lufeng Chen,Jianbo Shi,Yongguang Yin,Yong Cai,Guibin Jiang +8 more
TL;DR: In this paper , three common chelating ligands were selected (nitriloacetic acid (NTA), citrate, and ethylenediaminetetraacetic disodium (EDTA)) to promote the Fenton-like reaction and degradation of MeHg.
Related Papers (5)
Nitrate-Induced Photolysis in Natural Waters: Controls on Concentrations of Hydroxyl Radical Photo-Intermediates by Natural Scavenging Agents
Photochemistry of nitrite and nitrate in aqueous solution: a review
John Mack,James R. Bolton +1 more