کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
46291 46436 2012 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A comparative study of photocatalytic degradation of 3-chloropyridine under UV and solar light by homogeneous (photo-Fenton) and heterogeneous (TiO2) photocatalysis
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
پیش نمایش صفحه اول مقاله
A comparative study of photocatalytic degradation of 3-chloropyridine under UV and solar light by homogeneous (photo-Fenton) and heterogeneous (TiO2) photocatalysis
چکیده انگلیسی

Photocatalytic degradation of 3-chloropyridine in the homogeneous (photo-Fenton) and heterogeneous (TiO2) phase was studied using both UV and sun light. Complete mineralization was achieved in both cases though times required in photo-Fenton process were ca. 5 times shorter under our experimental conditions. Results found at lab scale (solar simulator) were successfully extrapolated to a larger scale (30 L) thus evidencing the validity of the method for treatment of waters polluted with this kind of chemical. Toxicity tests (Vibrio fischeri) showed that some intermediates more toxic than 3-chloropyridine were formed as reaction proceeded.

Figure optionsDownload as PowerPoint slideHighlights
► Photo-Fenton process is ca. 5 times faster than TiO2 photocatalysis.
► Complete mineralization using sun light and results at lab-scale well extrapolated to larger scale.
► Some intermediates more toxic than 3-chloropyridine formed as the reaction proceeds.
► Photo-Fenton process quite sensitive to the presence of phosphate.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Catalysis B: Environmental - Volume 127, 30 October 2012, Pages 316–322
نویسندگان
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