Demir yüklenmiş kitosanın Reaktif Turuncu 16 boyar maddesinin giderimine etkisi

Yıl 2022, Cilt: 37 Sayı: 3, 1427 - 1440, 28.02.2022

Eda Ceylan Gizem Başaran Nihal Bektaş Cengiz Yatmaz

https://doi.org/10.17341/gazimmfd.931836

Öz

Boyar maddelerin yoğun kullanıldığı tekstil endüstrisi atıksuları, genellikle biyolojik olarak kendiliğinden parçalanamayan büyük moleküllü toksik organik yapıları barındırdığından, konvansiyonel arıtım metotlarının yenilikçi adımlarla desteklenmesi önem arz etmektedir. Bu çalışmada, demir metali ile modifiye edilmiş kitosan (CS) adsorbent maddesi geliştirilmiş ve Reactive Orange (RO16) boyar maddesinin giderimi üzerine etkisi incelenmiştir. Bu amaçla, kitosan üzerine yüklenebilen maksimum demir miktarının belirlenmesi için 250, 500 ve 750 mg/L [Fe+2] konsantrasyonu olan FeSO4 çözeltisi ve kitosan 25oC sıcaklıkta 2 h reaksiyona tabi tutulmuştur. Demir ile modifiye edilmiş adsorbent maddeler sırasıyla CSFe-1, CSFe-2 ve CSFe-3 olarak tanımlanmış ve birim Fe+2 adsorpsiyon değerleri 79mg/g, 112mg/g ve 110mg/g olarak hesaplanmıştır. RO16 boyar maddesinin giderimi üzerine etkisi incelemek için CSFe-1 ve CSFe-2 adsorbent maddeleri seçilmiştir. 50 mg/L RO16 sulu çözeltisi ortamında 0,5g/L adsorbent madde kullanarak yürütülen adsorpsiyon çalışmalarının sonunda saf kitosan ile renk giderim verimi %25 iken, CSFe-1 ve CSFe-2 ile renk giderim verimi %90’a ulaşmış ve RO16 boyar maddesi için adsorbentlerin maksimum adsorpsiyon kapasiteleri sırasıyla 27, 91 ve 88 mg/g olarak hesaplanmıştır.

Anahtar Kelimeler

kitosan, demir modifikasyonu, adsorbent, adsorpsiyon, boyar madde giderimi

Kaynakça

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