Electrochemical detection of nitrite on poly(pyronin Y)/graphene nanocomposites modified ITO substrate

Şinoforoǧlu M., DAĞCI KIRANŞAN K., ALANYALIOĞLU M., Meral K.

Superlattices and Microstructures, cilt.94, ss.231-236, 2016 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 94
  • Basım Tarihi: 2016
  • Doi Numarası: 10.1016/j.spmi.2016.04.028
  • Dergi Adı: Superlattices and Microstructures
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.231-236
  • Anahtar Kelimeler: Electropolymerization, Graphene, Graphene oxide, Nitrite sensor, Pyronin Y
  • Bilecik Şeyh Edebali Üniversitesi Adresli: Hayır

Özet

The present study reports on an easy preparation of poly(pyronin Y)/graphene (poly(PyY)/graphene) nanocomposites thin films on indium tin oxide coated glass substrates (ITO). The thin films of poly(PyY)/graphene nanocomposites are prepared by a novel method consisting of three steps; (i) preparation of graphene oxide (GO) thin films on ITO by spin-coating method, (ii) self-assembly of PyY molecules from aqueous solution onto the GO thin film, (iii) surface-confined electropolymerization (SCEP) of the adsorbed PyY molecules on the GO thin film. The as-prepared poly(PyY)/graphene nanocomposites thin films are characterized by using electroanalytical and spectroscopic techniques. Afterwards, the graphene-based polymeric dye thin film on ITO is used as an electrode in an electrochemical cell. Its performance is tested for electrochemical detection of nitrite. Under optimized conditions, the electrocatalytical effect of the nanocomposites thin film through electrochemical oxidation of nitrite is better than that of GO coated ITO.