کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8332018 | 1540246 | 2015 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
In situ precipitation of nano-hydroxyapatite in gelatin polymatrix towards specific fluoride sorption
ترجمه فارسی عنوان
بارگیری ناحیه هیدروکسی آپاتیت در محلول پلیمرتیکس ژلاتین به منظور جذب فلوراید خاص
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
زیست شیمی
چکیده انگلیسی
This study investigates the synthesis of nano-hydroxyapatite (n-HAp) incorporated gelatin (Gel) biocomposite namely n-HAp@Gel composite for efficient removal of fluoride from aqueous solution. The results demonstrated that, the developed n-HAp@Gel biocomposite possess an enhanced defluoridation capacity (DC) of 4157Â mgFâ/kg. The batch experiments were optimized as a function of various influencing parameters like contact time, pH, co-ions, temperature and initial fluoride concentration. The physicochemical characteristics of n-HAp@Gel composite was examined by using different instrumental techniques like FTIR, XRD, TGA-DSC and SEM with EDAX analysis. The sorption data were fitted with various isotherm models. The acquired thermodynamic parameters showed that the sorption of fluoride onto the sorbent was endothermic and spontaneous in nature. The reaction-based and diffusion-based models were used to identify the kinetics of the reaction. At field conditions, n-HAp@Gel composite reduce the fluoride concentration below the tolerance limit. A regeneration technique was proposed in order to reuse the sorbent.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Biological Macromolecules - Volume 74, March 2015, Pages 351-359
Journal: International Journal of Biological Macromolecules - Volume 74, March 2015, Pages 351-359
نویسندگان
Kalimuthu Pandi, Natrayasamy Viswanathan,