کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6584139 | 456358 | 2015 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Removal of hydrolyzed Reactive Black 5 from aqueous solution using a polyethylenimine-polyvinyl chloride composite fiber
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In present research a powerful adsorbent was fabricated and employed for removal of anionic reactive dye, Reactive Black 5 (RB5) from aqueous solutions. Polyethylenimine (PEI)-polyvinyl chloride (PVC) composite fiber was prepared by spinning PEI-PVC blend into the mixture of water and methanol. To evaluate the dye sorption performance of PEI-PVC fiber, various parameters that included the effect of pH, dye concentration, contact time, and salt concentration in a batch process were studied. The optimal pH for hydrolyzed RB5 adsorption was observed in the range of pH 2.0-5.3. The sorption kinetic data were better fitted to the pseudo-second-order kinetic model compared with the pseudo-first-order kinetic model. Adsorption isotherm experiments were fitted to the Langmuir model and the maximum uptake of the PEI-PVC fiber was estimated. At a low initial dye concentration, the effect of salt concentration was negligible. However, RB5 uptake was significantly decreased with increasing salt concentration at a high initial dye concentration. By using 0.01Â M NaOH, RB5 was easily desorbed from the dye-loaded PEI-PVC fiber. These findings suggested that PEI-PVC fiber can be successfully used as an adsorbent for removal of anionic reactive dyes from aqueous effluents.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Journal - Volume 280, 15 November 2015, Pages 18-25
Journal: Chemical Engineering Journal - Volume 280, 15 November 2015, Pages 18-25
نویسندگان
Mu Hyeon Kim, Cho-Hee Hwang, Su Bin Kang, Sok Kim, Sang Won Park, Yeoung-Sang Yun, Sung Wook Won,