Preparation of Mg-Al layered double hydroxide intercalated with Coomassie Brilliant Blue R anion and its uptake of aromatic compounds from aqueous solutions

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Abstract

The objective of this study is to evaluate the capacity of Mg-Al layered double hydroxide (Mg-Al LDH) intercalated with organic dye to adsorb aromatic compounds in aqueous solutions. Mg-Al LDH intercalated with Coomassie Brilliant Blue R anion (BB) was prepared by coprecipitation. The BB-intercalated Mg-Al LDH was able to adsorb aromatic compounds from an aqueous solution, despite the electron density in the benzene ring of the aromatics. This uptake is caused by π-π stacking interactions, either between the electron-rich benzene rings of intercalated BB and the benzene rings of aromatics with a low electron density or between the electron-poor benzene rings of intercalated BB and the benzene rings of the aromatics with a high electron density.

Original languageEnglish
Pages (from-to)2035-2039
Number of pages5
JournalJournal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering
Volume47
Issue number13
DOIs
Publication statusPublished - 2012 Nov 1

Keywords

  • Composite materials
  • chemical synthesis
  • inorganic materials
  • precipitation

ASJC Scopus subject areas

  • Environmental Engineering

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