کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
625310 1455424 2011 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Preparation, characterization of modified wheat residue and its utilization for the anionic dye removal
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
Preparation, characterization of modified wheat residue and its utilization for the anionic dye removal
چکیده انگلیسی

The utilization of modified wheat residue (MWR) as sorbent to remove the anionic dye (Reactive Red-24, RR-24) from aqueous solution was studied. MWR was prepared and characterized by specific surface area, SEM, zeta potential, FTIR and elemental analysis. Sorption experiments were carried out as a function of sorbent dosage, pH, contact time and concentration of dye. Results indicated that a mass of amine groups were grafted into the framework of MWR. It was shown that pseudo-second-order kinetic equation could best describe the sorption kinetics. The equilibrium sorption data were well represented by the Langmuir isotherm equation. The maximum sorption capacity of MWR for RR-24 was 200.0 mg/g, which showed higher capacity than those of previous work and a similar capacity compared to those of commercial activated carbon. The results indicated that MWR could be employed as an excellent and low-cost sorbent for removal of anionic dye from aqueous solution.

Research Highlights
► Wheat residue is chemically modified into sorbent by amination reaction.
► At room temperature low-cost sorbent bearing amine groups was prepared.
► Modified wheat residue demonstrates excellent sorption capacity for the anionic dye (Reactive Red-24).

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Desalination - Volume 267, Issues 2–3, 15 February 2011, Pages 193–200
نویسندگان
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