| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1695736 | Applied Clay Science | 2010 | 5 Pages |
Abstract
Hydrotalcite (HT) possesses an appreciable defluoridation capacity (DC). In order to enhance its DC and to make it into a usable form, a HT/chitosan (HTCs) composite was prepared which showed a DC of 1255 mg F−/kg compared to 1030 and 52 mg F−/kg for HT and chitosan respectively. Batch adsorption studies were carried out to evaluate the influence of contact time, pH, co-anions, initial fluoride concentration and temperature. The composite was characterized using FTIR, XRD and SEM with EDAX analysis. The equilibrium adsorption data was fitted with the Langmuir model. The reaction-based and diffusion-based models were used to identify the kinetics of the reaction. The suitability of the composite was tested at field conditions.
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Geochemistry and Petrology
Authors
Natrayasamy Viswanathan, S. Meenakshi,