Preparation and characterisation of thiol functionalised p-tert-butylcalix[4]arene-embedded polymer inclusion membranes: performance and selectivity

Soner Engin M., Sayin S., Cay S., KIR E., SARDOHAN KÖSEOĞLU T.

International Journal of Environmental Analytical Chemistry, vol.99, no.11, pp.1103-1111, 2019 (SCI-Expanded, Scopus) identifier

  • Publication Type: Article / Article
  • Volume: 99 Issue: 11
  • Publication Date: 2019
  • Doi Number: 10.1080/03067319.2019.1616706
  • Journal Name: International Journal of Environmental Analytical Chemistry
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1103-1111
  • Keywords: Calixarene, ion transportation, polymer inclusion membrane, surface characterisation, trace metals
  • Isparta University of Applied Sciences Affiliated: Yes

Abstract

Here in we report the syntheses of the thiol functionalised p-tert-butylcalix[4]arene from the reaction of p-tert-butylcalix[4]arene-dialkylbromide derivative with thiourea. The structure of the thiol functionalised p-tert-butylcalix[4]arene was determined by using 1HNMR, 13CNMR and elemental analysis techniques. Furthermore, the thiol functionalised p-tert-butylcalix[4]arene, cellulose triacetate (CTA) and 2-nitrophenyl octyl ether (o-NPPE) in dichloromethane were used to make a new calixarene-embedded polymer inclusion membrane (But-C@PIM). The surface and structure morphology of But-C@PIM was detected using thermogravimetric analysis, elemental analysis techniques and scanning electron microscopy. The affinity (the percentage of metal ion transferred from the source solution) of a PIM towards a range of divalent cations was found to follow the order Pb2+ > Zn2+ > Ni2+ > Cu2+ > Cd2+ > Co2+. The results also indicated that the transport efficiency of But-C@PIM was repeatable and may be beneficial in the development of a simplistic and highly influential trace metal recovery method from aqueous solution.