پديد آورنده :
كريمي شردواني، الهام
عنوان :
تخريب فوتوالكتروكاتاليستي رنگ متيلن بلو با استفاده از الكترود فولاد ضد زنگ 304 اصلاح شده با نانولوله ي دي اكسيد تيتانيوم و گرافن اكسيد كاهش يافته
مقطع تحصيلي :
كارشناسي ارشد
گرايش تحصيلي :
شيمي تجزيه
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده شيمي
صفحه شمار :
شانزده، 70ص.: مصور
استاد راهنما :
بهزاد رضايي
استاد مشاور :
علي اصغر انصافي
استاد داور :
كيومرث زرگوش، محمدمحسن مومني
تاريخ ورود اطلاعات :
1394/12/02
چكيده انگليسي :
71 Using stainless steel modified electrode with graphene TiO2nanotube as a photoelectrocatalyst for decomposition methylene blue dye Elham karimi shervedani Elham karimi@ch iut ac ir Department of chemistry Isfahan university of Technology Isfahan84156 83111 Iran Degree M Sc language Persian supervisor Professor Behzad Rezaie Emai Rezaie@cc iut ac ir Advisor Professor Ali Asghar Ensafi Emai Ensafi@cc iut ac ir Abstract In the recent years control of water pollutions has become of increasing importance In thisstudy developed a cheap and efficient photoelectrochemical electrode for textile dyesdecomposition Graphene oxide and TiO2 nanotube TN were produced by modified Hummer sand hydrothermal methods respectively Graphene oxide and TN were characterized by FT IR XRD fluorescence spectra and TEM images These nanoparticles were deposited on treatedstainless steel 304 electrodes by electrophoretic deposition EPD method For EPD of grapheneoxide electrical field of 5 V cm field was applied for 1 hour in 1 5 mg ml of graphene oxide inwater TN was deposited at the same condition and in a solution of 3 7 methanol water and 1mg ml TN Three modified electrodes with EPD of TN TNSS graphene oxide rGOSS and TN graphene oxide TNrGOSS were produced for photoelectrodegradation study of methylene blue The prepared electrodes were characterized by FE SEM images and XRD patterns The impedanceresults show that the charge transfer resistance for TNrGOSS in the presence of simulated solarlight 100 mW cm2 is lower than charge transfer resistance of TNSS and in the absent of solarlight Also the onset potential for TNrGOSS was 96 mV lower than TNSS in Na2SO4 0 5 M Also the capability of bleaching of methylene blue by Photochemical PC Photoelectrochemical PEC and electrochemical EC degradation were studied PC and PEC of TNrGOSS are 1 85 and 2 86times more than TNSS for 120 min respectively Keyword Stainless steel electrode Reduced grapheme oxide TiO2 nanotube Photocatalyst Photoelectrocathalyst Methylene blue
استاد راهنما :
بهزاد رضايي
استاد مشاور :
علي اصغر انصافي
استاد داور :
كيومرث زرگوش، محمدمحسن مومني
