Sorption studies of manganese and cobalt from aqueous phase onto alginate beads and nano-graphite encapsulated alginate beads

Moonis Ali Khan, Woosik Jung, Oh Hun Kwon, Young Mee Jung, Ki Jung Paeng, Seung Yeon Cho, Byong Hun Jeon

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Comparative sorption study of dissolved manganese and cobalt ions onto alginate beads (ABs) and thermally activated nano-carbon beads (NCBs) was performed. Acidic functionalities dominate over sorbent surface. Elemental analysis confirmed that divalent calcium replacement with heavy metal ions might be a possible sorption mechanism. Optimum metal uptake was observed at pH 8. Most of the metal ions (80-92%) were sorbed within 4. h, followed by a slower sorption stage. Mn(II) and Co(II) recovery was greater than 99% with 0.1. N HCl, and NCB could be repeatedly utilized for Mn(II) and Co(II) sorption with negligible loss in sorption capacity.

Original languageEnglish
Pages (from-to)4353-4362
Number of pages10
JournalJournal of Industrial and Engineering Chemistry
Issue number6
Publication statusPublished - 2014 Nov 25


All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)

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