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Synthesis of alginate bioencapsulated nano-hydroxyapatite composite for selective fluoride sorption.
- Source :
-
Carbohydrate Polymers . Nov2014, Vol. 112, p662-667. 6p. - Publication Year :
- 2014
-
Abstract
- This article focuses on the development of eco-friendly adsorbent by alginate (Alg) bioencapsulating nano-hydroxyapatite (n-HAp) namely n-HApAlg composite for defluoridation studies in batch mode. n-HAp powder utilized as a promising defluoridating material, but it causes a significant pressure drop during field applications. To overcome such technological bottlenecks, n-HApAlg composite was synthesized. The defluoridation capacity (DC) of synthesized n-HApAlg composite possesses an enhanced DC of 3870mgF−/kg when compared to n-HAp and calcium alginate (CaAlg) composite which possess DC of 1296 and 680mgF−/kg, respectively. The biocomposite features were characterized using FTIR and SEM with EDAX analysis. The various adsorption influencing parameters like contact time, pH, co-anions, initial fluoride concentration and temperature were optimized. The adsorption process was enlightened by various isotherms and kinetic models. The suitability of the biocomposite at field conditions was also tested. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 01448617
- Volume :
- 112
- Database :
- Academic Search Index
- Journal :
- Carbohydrate Polymers
- Publication Type :
- Academic Journal
- Accession number :
- 97578824
- Full Text :
- https://doi.org/10.1016/j.carbpol.2014.06.029