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Sorptive removal of heavy metals with nano-sized carbon immobilized alginate beads

Title
Sorptive removal of heavy metals with nano-sized carbon immobilized alginate beads
Author
전병훈
Keywords
Cobalt; Nickel; Graphite nano-sized carbon; Alginate; Ion exchange
Issue Date
2015-06
Publisher
ELSEVIER SCIENCE INC
Citation
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, v. 26, Page. 364-369
Abstract
A composite adsorbent prepared by immobilizing graphite nano-sized carbon in alginate beads (NCB) was used for the removal of Co(II) and Ni(II) from aqueous solution. Kinetic studies showed that adsorption process reached equilibrium within 8 h at an initial concentration of 10 mg/L and sorption process was well explained by pseudo second order kinetic model. The Freundlich isotherm model correlated well with the adsorption isotherms of Co(II) and Ni(II) onto NCBs. The experimental results showed that the removal of Co(II) and Ni(II) ions from the solution was likely due to ion exchange with calcium(II) ions present in the alginate beads. (C) 2014 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
URI
http://www.sciencedirect.com/science/article/pii/S1226086X14006753http://hdl.handle.net/20.500.11754/25418
ISSN
1226-086X; 1876-794X
DOI
10.1016/j.jiec.2014.12.010
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > EARTH RESOURCES AND ENVIRONMENTAL ENGINEERING(자원환경공학과) > Articles
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