Use of 5,10,15,20-tetrakis(p-chlorophenyl)porphyrin as sensor material: potentiometric determination of aluminium(III) ions       
Yazarlar (2)
Doç. Dr. Oğuz ÖZBEK Zonguldak Bülent Ecevit Üniversitesi, Türkiye
Prof. Dr. Ömer IŞILDAK Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale
Dergi Adı Bulletin of Materials Science
Dergi ISSN 0250-4707 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q4
Makale Dili Türkçe
Basım Tarihi 06-2022
Cilt No 45
Sayı 3
Sayfalar 114 / 0
DOI Numarası 10.1007/s12034-022-02696-3
Makale Linki http://dx.doi.org/10.1007/s12034-022-02696-3
Özet
In this study, 5,10,15,20-tetrakis(p-chlorophenyl)porphyrin has been synthesized and used as an ionophore for the preparation of a poly(vinyl chloride) (PVC) membrane sensor for aluminium(III) ions. The optimum composition of the best performing membrane contained ionophore, bis(2-ethylhexyl) adipate, PVC and potassium tetrakis(p-chlorophenyl) borate in the ratio of 4.0:63.0:32.0:1.0 (mg). The prepared PVC membrane morphology has been analysed by scanning electron microscopy. The developed aluminium(III)-selective sensor works in a wide linear concentration range of 1.0 × 10–5 to 1.0 × 10–1 mol l–1 and, the detection limit of this sensor is 2.81 × 10−6 mol l–1. The sensor displays near-Nernstian slope of 25.0 ± 2.7 mV per decade for Al3+ ions. The aluminium(III)-selective sensor has a wide working pH range of 5.0–10.0. The sensor shows good reusability, long-term stability and a fast response time of less than 5 s. In addition, the sensor shows good selectivity for Al3+ ions over different cations. This aluminium(III)-selective sensor was successfully used as an indicator electrode in the potentiometric titration of Al3+ ions with EDTA. The developed sensor was successfully applied to the direct determination of Al3+ in different water samples.
Anahtar Kelimeler
ionophore | Porphyrins | potentiometry | PVC membrane | sensor