کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4454314 1312476 2014 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Formation pathways of brominated products from benzophenone-4 chlorination in the presence of bromide ions
ترجمه فارسی عنوان
مسیرهای تشکیل محصولات برومید شده از کلرور بنزوفنون 4 در حضور یون های برومید
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست علوم زیست محیطی (عمومی)
چکیده انگلیسی

The brominated products, formed in chlorination treatment of benzophenone-4 in the presence of bromide ions, were identified, and the formation pathways were proposed. Under disinfection conditions, benzophenone-4 would undertake electrophilic substitution generating mono- or di-halogenated products, which would be oxidized to esters and further hydrolyzed to phenol derivatives. The generated catechol intermediate would be transformed into furan-like heterocyclic product. The product species were pH-dependent, while benzophenone-4 elimination was chlorine dose-dependent. When the chlorination treatment was performed on ambient water spiked with benzophenone-4 and bromide ions, most of brominated byproducts could be detected, and the acute toxicity significantly increased as well.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Environmental Sciences - Volume 26, Issue 12, 1 December 2014, Pages 2387–2396
نویسندگان
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