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
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Journal ArticleDOI
Phototransformation of methabenthiazuron in the presence of nitrate and nitrite ions.
TL;DR: This work shows that the photodegradation of methabenzthiazuron in the presence of nitrate or nitrite ions is highly non-specific.
Journal ArticleDOI
Elemental Bromine Production by TiO2 Photocatalysis and/or Ozonation
TL;DR: Significant production of elemental bromine (Br2) was observed for the first time when treating bromide containing solutions at acidic pH, with TiO2 photocatalyst, ozone, or a combination thereof.
Book ChapterDOI
Review of the Activities and Achievements of the EUROTRAC Subproject HALIPP
TL;DR: In this article, the major problems and uncertainties in the field of heterogeneous chemistry that existed in 1987 when HALIPP was established are discussed and an assessment of the progress achieved is given in 2.8.
Journal ArticleDOI
Hydroxyl radical formation upon dark oxidation of reduced iron minerals: Effects of iron species and environmental factors
Ailing Zhu,Ailing Zhu,Yingying Guo,Guangliang Liu,Guangliang Liu,Maoyong Song,Yong Liang,Yong Cai,Yong Cai,Yongguang Yin,Yongguang Yin +10 more
TL;DR: In this article, the authors compared the hydroxyl radical formation from various reduced iron minerals at different redox conditions and found that structural Fe2+ and dissolved O2 play critical roles in OH production.
Journal ArticleDOI
Photodegradation kinetics of fenitrothion in various aqueous media and its effect on steroid hormones biosynthesis
TL;DR: In this paper, the phototransformation kinetics of fenitrothion in various water media were examined under both direct and indirect photolysis with respect to degradation rate, half-life, and phototon formation kinetics.
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