کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10389890 | 884408 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Adsorption of reactive dyes onto polymeric adsorbents: effect of pore structure and surface chemistry group of adsorbent on adsorptive properties
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A commercially available polymeric adsorbent NDA-99 and two new synthesized polymeric adsorbents NPA and AMR have been used for the adsorption of reactive dye (reactive brilliant blue XBR, abbreviated as XBR) from aqueous solution. The batch system was applied to study the adsorption equilibrium on the three polymeric adsorbents. Equilibrium adsorption data were obtained and fitted very well to Freundlich model. The results showed that the pore size distribution (PSD) and the amino groups on the polymer played a significant role in XBR adsorption performance, and polymer AMR exhibited the highest adsorption capacities due to the suitable PSD and the presence of amino groups. The free energy changes ÎG for adsorption of reactive dye XBR on the three polymeric adsorbents in the solution at 303Â K were evaluated. The negative values of ÎG indicated overall adsorption processes were spontaneous and thermodynamically favorable.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Separation and Purification Technology - Volume 44, Issue 1, July 2005, Pages 91-96
Journal: Separation and Purification Technology - Volume 44, Issue 1, July 2005, Pages 91-96
نویسندگان
Long Chao, Lu Zhaoyang, Li Aimin, Liu Wei, Jiang Zhenmao, Chen Jinlong, Zhang Quanxing,