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

Woosik Jung, Byong Hun Jeon, Dong Wan Cho, Hyun Seog Roh, Yunchul Cho, Sun Joon Kim, Dae Sung Lee

Research output: Contribution to journalArticle

28 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)364-369
Number of pages6
JournalJournal of Industrial and Engineering Chemistry
Volume26
DOIs
Publication statusPublished - 2015 Jun 25

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)

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