Filiz AKTI, Müjgan OKUR, Ayşenur ÇETİNTAŞ

Polianilin/Aljinat Malzemesinin Asit Violet 90 Boyar Maddesinin Gideriminde Kullanılması: Kinetik Ve İzoterm Değerlendirmesi

Bu çalışmada Polianilin/Aljinat (PANİ/SA) adsorbent malzemesi Asit Violet 90 (AV 90) boyarmaddesinin adsorpsiyonunda kullanılmıştır. PANİ/SA’nın karakterizasyonu Fourier DönüşümKızılötesi Spektroskopisi (FTIR) ile analiz edilmiştir. pH (2-6), PANİ/SA küre sayısı (10-50 adet)ve AV 90 derişiminin (25-200 mg/L) boyar madde giderimine etkisi incelenmiştir. En yüksekboyar madde giderimi pH 2’de elde edilmiştir. AV 90 adsorpsiyon izotermlerini belirlemek içinLangmuir, Freundlich ve Temkin modelleri kullanılmıştır. Boyar madde derişimi 25-200 mg/Laralığında iken Langmuir modelinden elde edilen maksimum adsorpsiyon kapasitesi (q m ) değeri138,9 mg/g olarak bulunmuştur. Adsorpsiyon kinetiğinin belirlenmesi için Yalancı birinci dereceve ikinci derece kinetik modelleri kullanılmış ve Yalancı ikinci derece kinetik modelin deneyverileri ile daha uyumlu olduğu görülmüştür. Deney sonuçları PANİ/SA adsorbentinin AV 90boyar maddesinin adsorpsiyonu için oldukça iyi bir alternatif olduğunu göstermiştir.

Use of Polyaniline/Alginate Composite Material in the Adsorption of Acid Violet 90 Dye:Kinetics and Isotherm Evaluation

In this study, Polyaniline/Alginate (PANI/SA) material was used to adsorption of Acid Violet 90 (AV 90) dye. The characterization of PANI/SA was analyzed by Fourier transform infrared spectroscopy (FTIR). The effect of pH (2-6), number of PANI/SA beads (10-50 adet) and concentration of AV 90 (25-200 mg/L) on removal of dye were examined. The highest dye removal was obtained at pH 2. Langmuir, Freundlich and Temkin models were used to determine AV 90 adsorption isotherms. The maximum adsorption capacity (q m ) value obtained from the Langmuir model in the range of 25-200 mg/L dye concentrations was found to be 138.9 mg / g. To determine the adsorption kinetics, Pseudo first order and second order kinetic models were used and it was found that the Pseudo second order kinetic model was more compatible with the experimental data. Experimental results have shown that PANI/SA adsorbent is a very good alternative for adsorption of AV 90 dye.

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