Preparation of a composite material for the uptake of bisphenol A from aqueous solutions, the dodecylsulfate ion-intercalated Mg-Al layer-structured double hydroxide particles

T. Kameda, M. Saito, Y. Umetsu

Research output: Contribution to journalArticlepeer-review

41 Citations (Scopus)

Abstract

The preparation of MgAl layer-structured double hydroxide (MgAl LDH) particles equipped with the function of an organic acid has been attempted by modifying the interlayer with dodecylsulfate ion (DS-). MgAl LDH, which had DS- intercalated in the interlayer, was synthesized by the dropwise addition of a solution of Mg(NO3)2 and Al(NO 3)3 to an aqueous solution of sodium dodecylsulfate at a constant pH of 10.0. The DS--modified MgAl LDH particle was found to have an uptake capacity for bisphenol A in an aqueous solution. This indicates that the function of DS- as an organic material was adequately maintained in the interlayer of the MgAl LDH. The uptake capacity increased with the increasing content of DS- intercalated in the interlayer. The bisphenol A uptaken by the DS--intercalated MgAl LDH was confirmed to be extracted with ethanol. The DS--intercalated MgAl LDH treated by the ethanol had a bisphenol A uptake capacity comparable to that of fresh LDH. These results indicate that DS--intercalated MgAl LDH retains its activity during repeated cycles of the uptake and ethanol extraction of bisphenol A.

Original languageEnglish
Pages (from-to)46-52
Number of pages7
JournalJournal of Alloys and Compounds
Volume402
Issue number1-2
DOIs
Publication statusPublished - 2005 Oct 27

Keywords

  • Bisphenol A
  • Dodecylsulfate ion
  • Mg-Al layer-structured double hydroxide
  • Modification
  • Uptake

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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