کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
585376 877911 2006 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Preparation of an aminated macroreticular resin adsorbent and its adsorption of p-nitrophenol from water
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بهداشت و امنیت شیمی
پیش نمایش صفحه اول مقاله
Preparation of an aminated macroreticular resin adsorbent and its adsorption of p-nitrophenol from water
چکیده انگلیسی
A chloromethylated styrene-divinylbenzene copolymer was post-cross-linked through Friedel-Crafts reaction to get a macroreticular resin adsorbent NA-01, and then chemically modified by dimethylamine to obtain an aminated adsorbent NA-01A. Batch adsorption runs of p-nitrophenol from aqueous solution onto adsorbent NA-01A were conducted to evaluate the effect of amino group on adsorption. The adsorption capacity of p-nitrophenol on NA-01A increased noticeably by comparison with the mother adsorbent. A linear relationship was observed between the adsorption capacity of NA-01A caused by amination and the equilibrium concentration of p-nitrophenol in aqueous solution, which can be reasonably elucidated by a modified isotherm equation based on the Freundlich model. The breakthrough curves on both adsorbents were experimentally determined and also predicted by the mathematic model based on the non-linear wave propagation theory and the corresponding isotherm model. The model based on the Freundlich model gave a good prediction of the breakthrough curve on NA-01, but a deviation occurred for NA-01A when C/C0 less than 0.3. However, another model based on the modified isotherm equation provided a better prediction for the breakthrough curves on NA-01A.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 137, Issue 2, 21 September 2006, Pages 1236-1240
نویسندگان
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