Direct measurements of the reactivity of singlet oxygen to some persistent herbicides in aqueous solutions

被引：3
|
作者：
Pozdnyakov, Ivan P. [1 ,2 ]
Parkhats, Marina, V [3 ]
机构：
[1] Novosibirsk State Univ, Novosibirsk 630090, Russia
[2] VV Voevodsky Inst Chem Kinet & Combust, Novosibirsk 630090, Russia
[3] Natl Acad Sci Belarus, BI Stepanov Inst Phys, Minsk 220072, BELARUS
来源：
CHEMOSPHERE | 2020年 / 247卷 / 247期
基金：
俄罗斯基础研究基金会;
关键词：
Fulvic and humic acids; Singlet oxygen; Sodium azide; Photodegradation; Reactive oxygen species; Time resolved luminescence; DISSOLVED ORGANIC-MATTER; MOLECULAR-OXYGEN; PHOTOLYSIS; DEGRADATION; PESTICIDES; MECHANISM; ATRAZINE; STATE;
D O I：
10.1016/j.chemosphere.2020.125872
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Reactivity of the singlet oxygen (SO), which is assumed to be one of the important oxidizers in natural waters, towards to a set of persistent herbicides, was measured for the first time using time resolved luminescence technique. It was observed that rate constants of SO reactions with the majority of studied herbicides are less than 10(6) M(-1)s(-1) allowing to conclude about negligible participation of SO in oxidation of the compounds in natural waters. (C) 2020 Elsevier Ltd. All rights reserved.
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页数：3
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