Preparation of organic acid anion-modified magnesium hydroxides by coprecipitation: A novel material for the uptake of heavy metal ions from aqueous solutions

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Abstract

New layered magnesium hydroxides whose brucite layers had been bridged with malate2- and tartrate2- were prepared by dropwise addition of Mg(NO3)2 to malate and tartrate solutions at a constant pH of 10.5. Malate2- and tartrate2- may have been also absorbed on the surfaces of hydroxides. In the case of using citrate solution, Mg(OH)2 absorbed with citrate3- was produced. These materials were found to take up Cu2+ rapidly from an aqueous solution at pH 5.0. Copper uptake by precipitates is attributed to the formation of chelate complexes of Cu2+ with citrate3-, malate2-, and tartrate2-.

Original languageEnglish
Pages (from-to)1104-1108
Number of pages5
JournalJournal of Physics and Chemistry of Solids
Volume70
Issue number7
DOIs
Publication statusPublished - 2009 Jul 1

Keywords

  • A. Inorganic compounds
  • B. Chemical synthesis

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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