Aminated Desmostachya bipinnata - Potential Biopolymer for the Removal of Lead Metal Ions from Wastewate

Authors(2) :-Jagjit Kour, Bindra Shrestha and Kedar Nath Ghemire

The biopolymer from Desmostachya bipinnata (DB) is investigated as a potential bio-adsorbent for the removal of Pb (II). It is a holy herb of the South Asian region with medicinal value. DB was functionalized with two types of aminating agents, which created suitable metal chelating medium encountered in aqueous solution. The biopolymer was characterized with SEM, DRFTIR, elemental analysis, zeta potential, and TG/DTA, which indicate functionalization with amine groups. The effect of pH, initial concentration and contact time of the metal solution were monitored by batch method. The maximum adsorption capacities were found to be 130.40 mg/g and 87.20mg/g, respectively. Langmuir isotherm model fitted well and the rate of adsorption followed the pseudo second order kinetic model. Desorption experiments result in regeneration of about 92 % Pb (II). The regenerated biopolymers were used for six successive cycles without any significant decrease in adsorption and desorption. Thus, the biopolymer derived from DB can be used as a cost effective, efficient and environment friendly green material for the removal of Pb (II) from the waste water.

Authors and Affiliations

Jagjit Kour
Department of Chemistry, Tri-Chandra College, Tribhuvan University, Nepal
Bindra Shrestha and Kedar Nath Ghemire
Department of Chemistry, Tri-Chandra College, Tribhuvan University, Nepal

Desmostachya bipinnata, Heavy metal, Batch experiment, Pseudo- second order kinetic model, Functionalization, Regeneration.

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Publication Details

Published in : Volume 2 | Issue 6 | November-December 2016
Date of Publication : 2016-12-31
License:  This work is licensed under a Creative Commons Attribution 4.0 International License.
Page(s) : 495-503
Manuscript Number : IJSRST162697
Publisher : Technoscience Academy

Print ISSN : 2395-6011, Online ISSN : 2395-602X

Cite This Article :

Jagjit Kour, Bindra Shrestha and Kedar Nath Ghemire, " Aminated Desmostachya bipinnata - Potential Biopolymer for the Removal of Lead Metal Ions from Wastewate, International Journal of Scientific Research in Science and Technology(IJSRST), Print ISSN : 2395-6011, Online ISSN : 2395-602X, Volume 2, Issue 6 , pp.495-503 , November-December-2016. Available at doi : 10.32628/IJSRST162697
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