کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7695865 | 1496514 | 2017 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Determination of iron, cobalt and nickel ions from aqueous media using the alkali modified miswak
ترجمه فارسی عنوان
تعیین یون های آهن، کبالت و نیکل از محیط آبی با استفاده از روش اصلاح شده اصلاح شده قلیایی
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی (عمومی)
چکیده انگلیسی
This paper describes a simple, rapid, inexpensive method for the preparation of a new biosorbent based on the modification of miswak fibers by NaOH (AT-Miswak-F). The synthesized AT-Miswak-F sorbent was utilized as an efficient sorbent for the extraction and preconcentration of iron group metal ions from various water samples. In this study, it was found that Fe(III), Co(II) and Ni(II) ions were completely extracted (100%) at pH range of 3-7 and flow rate of 0.3-2.0 mL minâ1. Also, the sorption capacity of AT-Miswak-F for Fe(III), Co(II) and Ni(II) are 0.54, 0.24 and 0.15 mmol gâ1, respectively. Equilibrium was best described by Freundlich isotherm model (R2 = 0.793) and the initial rate constants were 0.077, 0.054 and 0.035 mmol gâ1 minâ1, respectively. Under the optimized conditions, the method exhibited a detection limit of 1.4, 2.8 and 2.1 ng mLâ1 for Fe(III), Co(II) and Ni(II) ions in water samples with relative standard deviations of 2.6% (n = 4). The method was successfully applied for the determination of Fe(III), Co(II) and Ni(II) ions in sea, ground and contaminated water samples.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the Association of Arab Universities for Basic and Applied Sciences - Volume 23, June 2017, Pages 43-51
Journal: Journal of the Association of Arab Universities for Basic and Applied Sciences - Volume 23, June 2017, Pages 43-51
نویسندگان
E.A. Moawed, M.A. El-ghamry, M.A. El-Hagrasy, M.F. El-Shahat,