مشخصات پژوهش

عنوان	Multivariate Optimization and Adsorption Characterization of As(III) Removal by Using Fraxinus Tree Leaves Leaves
نوع پژوهش	مقاله چاپ‌شده
کلیدواژه‌ها	As(III); Central composite design; Desirability function; Fraxinus tree leaves
چکیده	This study introduces Fraxinustree leaves as a new, efficient biosorbent for of As(III). A suitable response surface was achieved by running a central composite design (CCD). Simultaneous optimization of both responses (R% and q) was carried out and 67% of the goal of desirability function was attained. The results obtained for simultaneous optimization are: R=70 % and q = 80.6 mgg-1 with 67 % desirability in m = 600 mgL-1 where s = 0.10 g and pH = 3.9. Langmuir and Freundlich isotherms model were applied in explaining the sorbent-sorbate equilibrium study, and maximum capacity uptake equals 99.97 mg g-1and KL= 0.05 L mg-1 has been obtained. FT-IR and kinetic results were considered to examine the functional groups involved and the adsorption mechanism.
پژوهشگران	سعید امانی کمایی (بازنشسته) (نفر چهارم)، پیمان ذوالقرنین (نفر سوم)، علی شاهمرادی (نفر دوم)، جواد ذوالقرنین (بازنشسته) (نفر اول)