کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6584922 456366 2015 28 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Enhanced production of reactive oxidants by Fenton-like reactions in the presence of carbon materials
ترجمه فارسی عنوان
تولید مواد اکسیدان کننده واکنشی با واکنش های مشابه فنتون در حضور مواد کربنی
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی
The production of the reactive oxidant (i.e., hydroxyl radical) by the Fenton-like reaction (Fe(III)/H2O2) was greatly improved by the addition of carbon materials such as powdered activated carbon (PAC) and carbon nanotubes (CNT). The presence of carbon materials enhanced the oxidative conversion of methanol into formaldehyde by the Fe(III)/H2O2 system. CNT exhibited a slightly higher activity than PAC. In the presence of the carbon materials, the reduction of Fe(III) to Fe(II) was accelerated while the decomposition rate of H2O2 increased, which appears to be responsible for the enhanced oxidant production. The reducing power of carbon materials was also shown by the reductive conversion of polyoxomolybdate. Increasing the addition of carbon materials exhibited saturated (or slightly decreased) oxidant yields, while decreasing the H2O2 utilization efficiency. The enhanced oxidant production by carbon materials was more pronounced in the absence of dissolved oxygen, which was explained by the reactions of organo-radicals produced by methanol oxidation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Journal - Volume 273, 1 August 2015, Pages 502-508
نویسندگان
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