Immobilization of CuII-(N,N'-bis(salicylidene)-2-aminobenzylamine) complex on the surface of Poly (pyrrole-co-o-anisidine) composite films and hydrogen peroxide determination

Öz

In this study, the immobilization of Cu II (N,N'-bis(salicylidene)-2-aminobenzylamine) (CuL) on the surface of poly(pyrrole-co-o-anisidine)/chitosan composite (Cs) films was carried out in a 0.15 M acetonitrile-LiClO4 solution between 0.2-2.0 V by cyclic voltammetry technique. It was determined by SEM images that the Schiff base metal complex was immobilized on the surface of the composite films coated on the platinum electrode in solutions with different monomer mole ratios. The presence of flower and rod-shaped structures, which are the characteristic shapes of Schiff base metal complexes, revealed in SEM images that Schiff base metal complexes are attached to the surface of composite films. In Addition, electrochemical stability studies have shown that composite films have not any degradation after immobilization and are quite electroactive. As a result of the electroanalytical studies, it was determined that the best electrode for the determination of peroxide was the modified electrode with a ratio of 9:1 attached to the Schiff base metal complex, and this electrode could be an alternative in application.

Anahtar Kelimeler

• Pyrrole
• o-anisidine
• chitosan
• composite
• electrochemical synthesis

CuII-N,N’-bis(salisiliden)-2-aminobenzilaminin) kompleksinin Poli (pirol-ko-o-anisidin) kompozit filmlerinin yüzeyine immobilizasyonu ve hidrojen peroksit tayini

Öz

Bu çalışmada, CuII-(N,N’-bis(salisiliden)-2-aminobenzilaminin) (CuL) kompleksinin pol(pirol-ko-o-anisidin)/kitosan kompozit (Kz) filmlerinin yüzeyine immobilizasyon işlemi 0,15 M asetonitril-LiClO4 çözeltisinde 0,2-2,0 V arasında dönüşümlü voltametri tekniği ile gerçekleştirilmiştir. Schiff bazı metal kompleksinin farklı monomer mol oranlarındaki çözeltilerde platin elektrota kaplanan kompozit filmlerin yüzeyine immobilizasyon işleminin gerçekleştiği SEM görüntüleri ile belirlenmiştir. Schiff bazı metal komplekslerinin kompozit filmlerin yüzeyine tutunduğu SEM görüntülerinde ortaya çıkan Schiff bazı metal komplekslerinin karakteristik şekilleri olan çiçek ve çubuk şeklindeki yapıların varlığından açık bir şekilde kanıtlanmıştır. Bunun yanında elektrokimyasal kararlılık çalışmaları kompozit filmlerinin immobilizasyon işlemi gerçekleştikten sonra herhangi bir bozulmaya uğramadığını ve oldukça elektroaktif olduklarını göstermiştir. Yapılan elektroanalitik çalışmalar sonucunda peroksit tayini için en iyi elektrotun Schiff bazı metal kompleksi tutturulmuş 9:1 oranındaki modifiye elektrot olduğu bu elektrotun uygulamada alternatif olabileceği belirlenmiştir.

Anahtar Kelimeler

• Pirol
• o-anisidin
• kitosan
• kompozit
• elektrokimyasal sentez

Kaynakça

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