کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4410988 | 1307572 | 2010 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhancement by anthraquinone-2-sulphonate of the photonitration of phenol by nitrite: Implication for the photoproduction of nitrogen dioxide by coloured dissolved organic matter in surface waters
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Enhancement by anthraquinone-2-sulphonate of the photonitration of phenol by nitrite: Implication for the photoproduction of nitrogen dioxide by coloured dissolved organic matter in surface waters Enhancement by anthraquinone-2-sulphonate of the photonitration of phenol by nitrite: Implication for the photoproduction of nitrogen dioxide by coloured dissolved organic matter in surface waters](/preview/png/4410988.png)
چکیده انگلیسی
Anthraquinone-2-sulphonate (AQ2S) under UVA irradiation is able to oxidise nitrite to NO2 and to induce the nitration of phenol. The process involves the very fast reactions of the excited triplet state 3AQ2S* and its 520-nm absorbing exciplex with water, at different time scales (ns and μs, respectively). Quinones are ubiquitous components of coloured dissolved organic matter (CDOM) in surface waters and AQ2S was adopted here as a proxy of CDOM. Using a recently developed model of surface-water photochemistry, we found that the oxidation of nitrite to NO2 by 3CDOM* could be an important NO2 source in water bodies with high [NO2-] to [NO3-] ratio, for elevated values of column depth and NPOC.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemosphere - Volume 81, Issue 11, December 2010, Pages 1401–1406
Journal: Chemosphere - Volume 81, Issue 11, December 2010, Pages 1401–1406
نویسندگان
Pratap Reddy Maddigapu, Claudio Minero, Valter Maurino, Davide Vione, Marcello Brigante, Gilles Mailhot,