7474

6980

كارشناسي ارشد

شيمي آلي

اصفهان: دانشگاه صنعتي اصفهان، دانشكده شيمي

1391

چهارده، 100ص.: مصور، جدول، نمودار

ص.ع. به فارسي و انگليسي

مهران غياثي

1/11/91

مهدي امير نصر، امير عبدالملكي

1396/09/22

كتابنامه

شيمي

شيمي

ID6980

به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي

Use of Hydroxyapatite Co Mn and Hydroxyapatite FeCl3 nanocatalysts for synthesis of benzophenone and diphenylmethane and investigation of photocatalytic behavior of Hydroxyapatite TiO2 ZnO Bahram Hoseini Monjezi b hoseinimonjezi@ch iut ac ir Date of Submission 2012 09 19 Department of Chemistry Isfahan University of Technology Isfahan 84156 83111 Iran Degree M Sc Language Farsi Supervisor Mehran Ghiaci mghiaci@cc iut ac ir Abstract In the first project hydroxyapatite TiO2 ZnO HAP TiO2 ZnO composites were prepared by sol gel method The photocatalyst was characterized by Fourier transform infrared FT IR spectroscopy X ray diffraction XRD scanning electron microscopy SEM energy dispersive spectroscopy EDS ultraviolet visible spectroscopy UV vis and transmission electron microscopy TEM The photocatalytic activity of the photocatalyst was evaluated by photocatalytic degradation of acid orange AO aqueous solutions under visible light and UV irradiation The results showed that the photocatalytic activity of the hydroxyapatite TiO2 ZnO is much higher than that of hydroxyapatite TiO2 on the photodegradation process The effects of operational parameters such as the amount of photocatalyst initial concentration of azo dye pH on the photocatalytic activity of the photocatalyst were also investigated In the second project HAP FeCl3 was prepared by impregnation method Then the nanocatalyst was characterized by TEM FT IR SEM XRD and UV vis and was tested for Friedel Crafts alkylation The various parameters such as time temperature w FeCl3 amount of the catalyst were optimized In the third project Co Mn nanocatalyst was prepared by using of osmosis and impregnation methods The nanocatalyst was characterized by XRD TEM FT IR SEM BET and UV vis techniques and was tested for oxidation of diphenylmethane to benzophenone The nanocatalyst exhibited high catalytic activities for the oxidation of diphenylmethane under heterogeneous conditions In order to obtain maximum conversion the reaction parameters such as reaction temperature time amount of the nanocatalyst and pressure of oxygen gas were optimized Under the optimized conditions a maximum of 87 conversion and 90 selectivity was achieved with heterogeneous hybrid Co Mn nanocatalyst over calcined bone The reaction did not proceed in the absence of the catalyst Benzophenone was the major product and the other products were found to be benzoic acid and a little amount of other products The catalyst can be recovered and recycled by a simple decantation Keywords Nanocatalyst Photocatalyst Hydroxyapatite Titanium dioxide Friedel Crafts reaction Diphenylmethane Co Mn nanocatalyst Oxidation Benzophenone

مهران غياثي

مهدي امير نصر، امير عبدالملكي