کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7843788 | 1506523 | 2017 | 38 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Kinetics, isotherms and thermodynamic evaluation of amine functionalized magnetic carbon for methyl red removal from aqueous solutions
ترجمه فارسی عنوان
سینتیک، ایزوترم و ارزیابی ترمودینامیکی کربن مغناطیسی کارکرد آمین برای حذف متیل قرمز از محلول های آبی
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کلمات کلیدی
کربن اصلاح شده پلی اتیلنیمیم شاخه ای معمولی، پیشرفت ستون،
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
چکیده انگلیسی
Global fresh water demand increases as population increases. Thus, the demand for cost-effective materials and efficient technologies for water treatment is on the rise. Here, we modified rubber-derived carbon by iron oxide and then the obtained material was subjected to surface modification using typical branched polyethylenimine (BPEI) to produce a magnetic composite of AC-FexOy-BPEI. The composite was characterized. The efficiency of the polymer anchored material was examined for methyl red (MR) removal from aqueous media in the batch and column systems. The results indicated a high percentage of removal (â 100%) and eequilibrium was observed in 10 mins. The process followed models of the Langmuir isotherm and Pseudo-second order, with a capacity of 526 mg/g. The negative standard enthalpy change (â Ho) suggests that the adsorption of MR on the material is exothermic. The breakthrough was observed after 150 mins using a 1 mM concentration of methyl red flow through a designed short column. The AC-FexOy-BPEI demonstrated remarkable efficiency in removing MR from aqueous solutions. The high adsorption capacity does indeed make the amine-modified material as an effective sorbent. The material leverages its cost-effective source, in addition to the ease of preparation along with its fast uptake capacities, it offers great promise for wastewater remediation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Liquids - Volume 248, December 2017, Pages 577-585
Journal: Journal of Molecular Liquids - Volume 248, December 2017, Pages 577-585
نویسندگان
Tawfik A. Saleh, Akram A. Al-Absi,