Mahdi Kamali
Chemical Processes Research Department, Engineering Research Center, University of Isfahan, P.O. Box 81746-73441 Isfahan, I.R. IRAN
[ 1 ] - Controllable Synthesis of Silver Nanoparticles Using Citrate as Complexing Agent: Characterization of Nanopartciles and Effect of pH on Size and Crystallinity
A method for the controllable synthesis of silver nanoparticles based on a complexing agent method was developed. Citric acid was used as a complexing agent. The effect of pH (1.6 to 5.17) on the size and net height (as obtained from XRD analyses) of silver nanoparticles was investigated. The nanoparticles (10 to 40 nm) were characterized using XRD, TEM, SEM, EDX, UV-Vis spectrosco...
[ 2 ] - Dehydrogenation of Isobutane Over Nanoparticles of Pt/Sn Alloy on Pt/Sn/Na-Y Catalyst: The Effect of Tin Precursor on the Catalyst Behavior
In this research Na-Y was synthesized by hydrothermal method and used as support for preparation of Sn/Pt/Na-Y catalysts using two different tin precursors, Bu3Sn(Cl) and SnCl2.2H2O, by sequential impregnation, in which the Pt was deposited first and in the next step Sn was deposited. The catalysts were characterized by H2 chemisorption, transmis...
[ 3 ] - مشخصه‌یابی فیزیکی و شیمیایی رسوب چربی و روغن موجود در خطوط فاضلاب شهر مشهد و راه‌های جلوگیری از آن
رسوب‌های ناشی از روغن، چربی و گریس در خطوط فاضلاب باعث سرریز فاضلاب، آسیب به محیط زیست و خطرات بهداشتی می‌شود. آنالیز دو نمونه رسوب جمع‌آوری شده از شبکه فاضلاب خیابان امام رضا (ع) در شهر مشهد، نشان داد که واکنش‌های شیمیایی روغن‌های خوراکی در خطوط فاضلاب، منجر به تشکیل صابون غیر محلول و ایجاد رسوب در خطوط فاضلاب می‌شود. این رسوب‌ها به‌‌دلیل چسبندگی زیاد...
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