Immobilization of ionophore and surface characterization studies of the titanium(III) Ion in a PVC-membrane sensor

Majid Rezayi, Yook Heng Lee, Anuar Kassim, Saeid Ahmadzadeh, Yadollah Abdollahi, Hossein Jahangirian

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

Novel ionophores comprising various hydroxide and amine structures were immobilized onto poly(vinyl chloride) (PVC) matrices, and these were examined to determine Ti(III) selectivity. To predict the selectivity of Ti(III), a PVC membrane was used to investigate the binding of Ti(III) to c-methylcalix[4]resorcinarene (CMCR). The study showed that the chelating ligand, CMCR, was coordinated selectively to Ti(III) at eight coordination sites involving the oxygen atoms at the interface of the membrane/solution. The membrane was prepared, based on CMCR as an ionophore, sodium tetrakis(4-fluorophenyl) borate (NaTFPB) as a lipophilic ionic additive, and dioctylphthalate (DOP) as a plasticizer. The immobilization of the ionophore and surface characterization studies revealed that the performance of CMCR-immobilized PVC was equivalent to that of mobile ionophores in supported liquid membranes (SLMs). The strengths of the ion-ionophore (CMCR-Ti(OH)(OH2)5 2+) interactions and the role ofionophores on membranes were studied via UV-Vis, Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM) and and X-ray diffraction (XRD).

Original languageEnglish
Pages (from-to)8806-8814
Number of pages9
JournalSensors (Switzerland)
Volume12
Issue number7
DOIs
Publication statusPublished - Jul 2012

Fingerprint

Ionophores
Titanium
immobilization
Polyvinyl Chloride
Polyvinyl chlorides
Immobilization
titanium
Ions
membranes
Membranes
sensors
Sensors
ions
Sodium Ionophores
selectivity
Vinyl Chloride
Plasticizers
Borates
Liquid membranes
plasticizers

Keywords

  • C-methyl-calix[4]resorcinarene
  • Fourier transform infrared spectroscopy
  • Ionophore-immobilized membrane
  • Scanning electron microscopy
  • Titanium(III) cation
  • UV-Vis
  • X-ray diffraction

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics
  • Analytical Chemistry
  • Biochemistry

Cite this

Immobilization of ionophore and surface characterization studies of the titanium(III) Ion in a PVC-membrane sensor. / Rezayi, Majid; Lee, Yook Heng; Kassim, Anuar; Ahmadzadeh, Saeid; Abdollahi, Yadollah; Jahangirian, Hossein.

In: Sensors (Switzerland), Vol. 12, No. 7, 07.2012, p. 8806-8814.

Research output: Contribution to journalArticle

Rezayi, Majid ; Lee, Yook Heng ; Kassim, Anuar ; Ahmadzadeh, Saeid ; Abdollahi, Yadollah ; Jahangirian, Hossein. / Immobilization of ionophore and surface characterization studies of the titanium(III) Ion in a PVC-membrane sensor. In: Sensors (Switzerland). 2012 ; Vol. 12, No. 7. pp. 8806-8814.
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