Characterization of a newly synthesized fluorescent benzofuran derivative and usage as a selective fiber optic sensor for Fe(III)

Oter Ö., ERTEKİN K., Kirilmis C., Koca M., Ahmedzade M.

SENSORS AND ACTUATORS B-CHEMICAL, vol.122, no.2, pp.450-456, 2007 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 122 Issue: 2
  • Publication Date: 2007
  • Doi Number: 10.1016/j.snb.2006.06.010
  • Journal Name: SENSORS AND ACTUATORS B-CHEMICAL
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.450-456
  • Keywords: benzofuran derivative, iron sensor, Fe3+, fluorescence spectroscopy, SPECIATION, IRON
  • Dokuz Eylül University Affiliated: Yes

Abstract

In this work photoluminescent properties of Fe3+ selective organic fluoroionophore, benzofuran derivative bis(7-methoxybenzofuran-2-il)ketoxime (BFK) was investigated in different solvents (dichloromethane, tetrabydrofuran, toluene and ethanol) and in polymer matrices of polyvinylchloride (PVC) and ethyl cellulose (EC) by absorption and emission spectrometry. The photophysical constants such as quantum yield, Stock's shift and molar extinction coefficient of the BFK dye were declared. The immobilized dye was found to exhibit a selective response for Fe3+ in direction of decrease in fluorescence intensity.