Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7784143 | Carbohydrate Polymers | 2018 | 30 Pages |
Abstract
A tetra-amine copper(II) chitosan bead system (TAC@CS composite beads) was developed by grafting tetra-amine copper(II) (TAC) with chitosan (CS) and utilized for phosphate removal. The prepared TAC@CS composite beads possess enhanced phosphate sorption capacity (SC) of 41.42â¯Â±â¯0.071â¯mg/g than copper grafted chitosan (Cu@CS) composite, TAC and chitosan which were found to be 37.01â¯Â±â¯0.803, 33.20â¯Â±â¯0.650 and 7.24â¯Â±â¯0.059â¯mg/g respectively. In batch mode, various adsorption influencing parameters like contact time, initial phosphate concentration, solution pH, co-anions and temperature were optimized for maximum phosphate sorption. The prepared adsorbents were characterized by FTIR, XRD, UV-Visible, SEM and EDAX analysis. The adsorption isotherms and thermodynamic parameters of the adsorbent were studied. The feasible phosphate uptake mechanism of TAC@CS biocomposite beads was reported. The reusability studies of TAC@CS composite beads were carried out using NaOH as elutant. The suitability of TAC@CS composite beads at field conditions was tested with phosphate contaminated field water samples collected from nearby areas of Dindigul district.
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Authors
Ilango Aswin Kumar, Natrayasamy Viswanathan,