کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
221551 464260 2016 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Treatment of real wastewater with TiO2-films sensitized by a natural-dye obtained from Picramnia sellowii
ترجمه فارسی عنوان
تصفیه فاضلاب مستغلات با نانوذرات TiO2 فیلم حساس توسط طبیعی رنگ به دست آمده از sellowii Picramnia
کلمات کلیدی
فاضلاب؛ ماده رنگ آمیزی و حساس؛ نانوذرات TiO2 فیلم؛ Chokanari؛ باکتری
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی

A natural dye extracted from Picramnia sellowii (Chokanari) was used to prepare sensitized TiO2 films. Dyes and heterotrophic microorganisms present in wastewater were treated by photocatalysis using visible light. A factorial design 23 was employed to select the operational conditions to sensitize TiO2 films. The combined treatment using a concentration of 0.03% w/v of sensitizer (natural dye), 700 rpm (spin-coating) and 300 color units of wastewater showed interesting results, removing close to 60% of the color and 60% of Chemical Oxygen Demand. Kinetic experiments using the best coated films showed that Total Organic Carbon abatement was higher using sensitized films, conversely, no statistical differences were found in color removal when comparing sensitized and non-sensitized films. Heterotrophic microorganisms were completely inactivated following 12 h of treatment with sensitized films. Films can be used up to 5 operational cycles with loss of catalytic activity close to 10%.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Environmental Chemical Engineering - Volume 4, Issue 3, September 2016, Pages 2848–2856
نویسندگان
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