09 فروردین 1403
خسرو محمدي

خسرو محمدی

مرتبه علمی: دانشیار
نشانی: دانشکده علوم و فناوری نانو و زیستی - گروه شیمی
تحصیلات: دکترای تخصصی / شیمی معدنی
تلفن: 07731223388
دانشکده: دانشکده علوم و فناوری نانو و زیستی

مشخصات پژوهش

عنوان
جذب یون مس توسط جلبک سارگاسوم و بررسی تاثیر حضور یون های کلسیم و منیزیم بر جذب
نوع پژوهش پارسا
کلیدواژه‌ها
Biosorption, Heavy Metal, Biomass, Marine Algae
پژوهشگران لادن رسول زاده (دانشجو) ، محمود نیاد (استاد راهنما) ، خسرو محمدی (استاد مشاور)

چکیده

The biosorption of the cupper ion by Sargassum as brown alga were studied with respect to the contact time, temperature, pH, initial biomass dosage and initial concentration of Cu(II). The maximum of biosorption was acquired in the first 30 minutes, the most favorable temperature was 550C and optimum pH for biosorption was found 6. The kinetic of biosorption was fitted in the pseudo-second order model. The isotherm of biosorption wase studied by Freundlich, Langmuir and Temkin models. The Freundlich isotherm model was the most favorable for obtaining the equilibrium data. The thermodynamic biosorption parameters such as Ea, ?H‡, ?S‡ and ?G‡ were calculated. Finally, by using Response Surface Methodology from Minitab software, the optimum experimental conditions were obtained. Furthermore, the effects of calcium and magnesium on the biosorption were studied.