کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8083906 1521706 2018 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Removal of cobalt ions from aqueous solution using chitosan grafted with maleic acid by gamma radiation
ترجمه فارسی عنوان
حذف یون های کبالت از محلول های آبی با استفاده از کیتوزان با استفاده از اسید مالیک با تابش گاما
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی هسته ای و مهندسی
چکیده انگلیسی
Chitosan was modified by gamma radiation-induced grafting with maleic acid and then used for the removal of cobalt ions from aqueous solutions. Chitosan-g-maleic acid was characterized by Fourier Transform infrared spectroscopy (FT-IR). The effect of the dose (1-5 kGy) and monomer concentration (0.3-1.3%, m/v) on the grafting ratio was examined. The adsorption kinetics and isotherms were also investigated. The results showed that the optimal dose for grafting was 2 kGy. When monomer concentration was within the range of 0.3-1.3% (m/v), the grafting ratio increased almost linearly. For the adsorption of cobalt ions by chitosan-g-maleic acid beads, the pseudo second-order kinetic model (R2 = 0.99) and Temkin isotherm model (R2 = 0.96) were able to fit the experimental data reasonably well. The equilibrium adsorption capacity of cobalt ions increased from 2.00 mg/g to 2.78 mg/g after chitosan modification.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Engineering and Technology - Volume 50, Issue 1, February 2018, Pages 211-215
نویسندگان
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