کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
581045 | 877839 | 2009 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Fluoride sorption by nano-hydroxyapatite/chitin composite
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
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چکیده انگلیسی
In this study the fluoride adsorption potential of novel nano-hydroxyapatite/chitin (n-HApCh) composite was explored. The sorbent was characterized using FTIR studies. The effects of pH, interfering anions and contact time were studied. The sorption data obtained under optimized conditions were subjected to Langmuir and Freundlich isotherms. Kinetic studies indicate that the rate of sorption of fluoride on n-HApCh composite follows pseudo-second-order and pore diffusion patterns. n-HApCh composite possesses higher defluoridation capacity (DC) of 2840 mgFâ kgâ1 than nano-hydroxyapatite (n-HAp) which showed a DC of 1296 mgFâ kgâ1. Field trials were conducted with the sample collected from a nearby fluoride endemic area.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 172, Issue 1, 15 December 2009, Pages 147-151
Journal: Journal of Hazardous Materials - Volume 172, Issue 1, 15 December 2009, Pages 147-151
نویسندگان
C. Sairam Sundaram, Natrayasamy Viswanathan, S. Meenakshi,