Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7791679 | Carbohydrate Polymers | 2014 | 6 Pages |
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 3870 mg Fâ/kg when compared to n-HAp and calcium alginate (CaAlg) composite which possess DC of 1296 and 680 mg Fâ/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.
Related Topics
Physical Sciences and Engineering
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Organic Chemistry
Authors
Kalimuthu Pandi, Natrayasamy Viswanathan,