پديد آورنده :
نويد پور، اميرحسين
عنوان :
پوشش هاي پاشش حرارتي پايه ي اكسيدآهن براي كاربردهاي فتو كاتاليتيكي
مقطع تحصيلي :
كارشناسي ارشد
گرايش تحصيلي :
شناسايي و انتخاب مواد
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده مواد
صفحه شمار :
پانزده،92ص.: مصور،جدول،نمودار
يادداشت :
ص.ع.به فارسي و انگليسي
استاد راهنما :
مهدي صالحي
استاد مشاور :
مهدي امير نصر، حميدرضا سليمي جزي
توصيفگر ها :
فتو كاتاليست , هماتيت , مگنتيت , پاشش شعله اي , پاشش پلاسمايي , متيلن بلو
تاريخ نمايه سازي :
15/4/92
استاد داور :
احمد منشي، مرتضي شمعانيان اصفهاني
چكيده فارسي :
به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي
چكيده انگليسي :
97 Thermal Spraying of Iron Oxide Based Coatings Used for Photocatalytic Applications Amirhosein Navidpour a navidpour@ma iut ac ir Date of Submission 19 01 2013 Department of Materials Engineering Isfahan University of Technology Isfahan 84156 83111 Iran Degree M Sc Language Farsi Supervisor Mehdi Salehi Professor Surfacesalehi@hotmail com Advisors Mehdi Amirnasr Professor amirnasr@cc iut ac ir Hamidreza Salimi Jazi Assistant Professor hrjazi@cc iut ac ir Abstract In this study iron oxide was sprayed by the flame and plasma techniques and X ray diffraction was used to evaluate the possible phase transformation occurred In this regard morphology and surface composition were studied by Scanning Electron Microscopy SEM and FT IR analysis respectively The light adsorption ability of the thermally sprayed coatings was also measured by Diffuse Reflectance Spectrometer DRS analysis These studies showed that hematite and magnetite phases were observed in all of the coatings so changes in flame spraying parameters were done to evaluate the effect of phase transformation on photocatalytic activity Degradation of Methylene Blue was studied to evaluate the photocalytic activity The results show the positive effect of thermally sprayed coatings on photocatalytic degradation of Methylene Blue and the sample sprayed at 20 cm spraying distance had the highest efficiency Rate of the photocatalytic degradation of Methylene Blue was 0 085 hr 1 under visible light irradiation for F20 sample The value of band gap determined by Tauc method was 1 7 eV for F20 sample It was also shown that flame spraying can be more effective than plasma spraying The results of evaluation the photocatalytic activity also show that pH and the light wavelength are the most effective parameters effecting the photocatalytic degradation of Methylene Blue among concentration light intensity light wavelength and pH Keywords Photocatalyst Iron Oxide Hematite Magnetite Flame Spraying Plasma Spraying Methylene Blue PDF created with pdfFactory trial version www pdffactory com
استاد راهنما :
مهدي صالحي
استاد مشاور :
مهدي امير نصر، حميدرضا سليمي جزي
استاد داور :
احمد منشي، مرتضي شمعانيان اصفهاني
