کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4989898 | 1456934 | 2017 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Adsorption of copper and zinc onto carbon material in an aqueous solution oxidized by ammonium peroxydisulphate
ترجمه فارسی عنوان
جذب مس و روی بر روی ماده کربن در یک محلول آبی اکسید شده با پراکسید سولفات آمونیوم
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کلمات کلیدی
مواد کربن، جذب، یون فلزات سنگین، ایزوترم سینتیک،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
چکیده انگلیسی
The aim of the present work was to evaluate and compare of carbon materials for the ability to eliminate Cu (II) and Zn (II) ions from water. Ammonium peroxydisulphate ((NH4)2S2O8)-treated carbon material (Ox-CM) was prepared from the combustion of forest branches and was compared with raw carbon material (CM). The adsorption isotherms and the influence of contact time, initial pH, and ionic strength for the adsorption of Cu (II) and Zn (II) were determined. The results of this work show that the removal ratios of Cu (II) for CM and Ox-CM after 2Â h were 8.7 and 94.2%, respectively; and, those of Zn (II) for CM and Ox-CM after 2Â h were 7.8 and 89.9%, respectively. The values of the parameters obtained for Cu (II) were based on the Langmuir isotherm saturated adsorption amount (Q0) and the adsorption equilibrium constant (KL): 27.47Â mg/g and 0.4556Â L/mg on Ox-CM; 3.66Â mg/g and 0.2099Â L/mg on CM, respectively. Those of Q0 and KL for Zn (II) were as follows: 22.52Â mg/g and 0.4978Â L/mg on Ox-CM; 3.07Â mg/g and 0.5560Â L/mg on CM, respectively. In this work Ox-CM provided the optimal level of adsorption for Cu (II) and Zn (II) ions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Separation and Purification Technology - Volume 186, 2 October 2017, Pages 255-263
Journal: Separation and Purification Technology - Volume 186, 2 October 2017, Pages 255-263
نویسندگان
Yingjie Dai, Kexin Zhang, Jingjing Li, Yue Jiang, Yanjun Chen, Shunitz Tanaka,