کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
582452 | 1453164 | 2009 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Removal of tartrazine from aqueous solutions by strongly basic polystyrene anion exchange resins
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The removal of tartrazine from aqueous solutions onto the strongly basic polystyrene anion exchangers of type 1 (Amberlite IRA-900) and type 2 (Amberlite IRA-910) was investigated. The experimental data obtained at 100, 200, 300 and 500 mg/dm3 initial concentrations at 20 °C were applied to the pseudo-first order, pseudo-second order and Weber-Morris kinetic models. The calculated sorption capacities (qe,cal) and the rate constant of the first order adsorption (k1) were determined. The pseudo-second order kinetic constants (k2) and capacities were calculated from the plots of t/qt vs. t, 1/qt vs. 1/t, 1/t vs. 1/qt and qt/t vs. qt for type 1, type 2, type 3 and type 4 of the pseudo-second order expression, respectively. The influence of phase contact time, solution pH and temperature on tartrazine removal was also discussed. The FTIR spectra of pure anion exchangers and those loaded with tartrazine were recorded, too.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 164, Issues 2â3, 30 May 2009, Pages 502-509
Journal: Journal of Hazardous Materials - Volume 164, Issues 2â3, 30 May 2009, Pages 502-509
نویسندگان
Monika Wawrzkiewicz, Zbigniew Hubicki,