کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
221577 464260 2016 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
SiO2-TiO2-B2O3-BaO glass-ceramic system with Fe2O3 or CuO additives as photocatalyst
ترجمه فارسی عنوان
سیستم سرامیک شیشه ای SiO2-TiO2-B2O3-BaO با افزودنی Fe2O3 یا CuO به عنوان فوتوکاتالیست
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی

Different amounts of Fe2O3 or CuO have been added over the glass batch composed mainly of SiO2, B2O3, BaO and the photoactive TiO2. The obtained glass samples were subsequently heat treated at the onset of nucleation temperature (490 °C) for 1–3 h followed by heating at 550 °C for the same period in order to obtain nanocrystalline glass-ceramic materials. X-ray diffraction analysis of the obtained materials revealed amorphous structure; however, tiny crystals could be detected under high-resolution electron microscope (HR-TEM). All samples showed absorption in UV with variable absorption in the visible light regions depending on the composition. The prepared glass-ceramic materials displayed photocatalytic efficiency for the degradation of Humic Acid, though Fe doping is much favorable than Cu doping. About 46% removal of humic acid could be achieved when using sample containing 0.5 wt.% of Fe2O3 and heat treated at 490 °C/1 h followed 550 °C/1 h.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Environmental Chemical Engineering - Volume 4, Issue 3, September 2016, Pages 3106–3113
نویسندگان
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