کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4411621 1307601 2010 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Methane formation by oxidation of ascorbic acid using iron minerals and hydrogen peroxide
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
Methane formation by oxidation of ascorbic acid using iron minerals and hydrogen peroxide
چکیده انگلیسی

The possibility of methane formation in an oxidative environment has been intensely debated, especially since the discovery of methane generation by living plants. However, recent studies with animal tissue suggested that under specific conditions aerobic methane formation is also possible. Here, we investigated the generation of methane in an abiotic model system using bioavailable substances. We show formation of methane in a highly oxidative media, using ascorbic acid, ferrihydrite and hydrogen peroxide as reagents. Methane production was shown to be related to reagent ratio, reaction volume and pH. A 2:1 ratio of hydrogen peroxide to ascorbic acid, catalytic amounts of ferrihydrite and acidic conditions (pH 3) enhanced formation of methane. We further show that gaseous oxygen has a strong influence with higher levels found to inhibit methane formation. This study is a first step towards providing an insight for the reaction mechanism of methane formation that would be applicable to aerobic environments.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemosphere - Volume 80, Issue 3, June 2010, Pages 286–292
نویسندگان
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