Removal of toxic trace elements from aqueous solutions using a SiO2-sol-gel/2,2′-(imidazolidine-1,3-diylbis(methylene))bis(3,5-di-tert-butylphenol) matrix

S. Gottesman, H. Cohen, Y. Albo

Research output: Contribution to journalArticlepeer-review

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Abstract

The sol-gel technique has been utilized for the preparation of sorbent glass material incorporated with the ligand 2,2'-(imidazolidine-1,3-diylbis (methylene))bis(3,5-di-tert-butylphenol). Two procedures were used for the synthesis of the silica based material: (i) one step process under acidic conditions, (ii). A two steps procedure, using an acidic catalyst for the hydrolysis stage, and condensation of the silanol groups under basic conditions. The preparation conditions affect the morphological properties of the matrices and thus their sorption properties. The efficiency of Cu2+, Ni2+ and Cd2+ removal from aqueous solutions have been studied using batch experiments.

Original languageEnglish
Pages (from-to)429-435
Number of pages7
JournalGlass Physics and Chemistry
Volume43
Issue number5
DOIs
StatePublished - 1 Sep 2017

Keywords

  • 2,2'-(imidazolidine-1,3-diylbis(methylene))bis(3,5-di-tert-butylphenol)
  • metal ions
  • sol-gel
  • solid phase extraction

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