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Cu(II) İYONLARININ SULU ÇÖZELTİLERDEN POLİAMİN-POLİÜRE REÇİNESİ KULLANILARAK GİDERİLMESİ

REMOVAL OF COPPER (II) IONS FROM AQUEOUS SOLUTION BY POLYAMINE-POLYUREA RESIN

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Abstract (2. Language): 
In this study, a polyamine-polyurea chelating resin was synthesized and used in removal of copper (II) ions from aqueous solutions by adsorption. By using batch method, the effect of pH, adsorbent dosage, contact time and initial concentration on adsorption were investigated. 60 minutes of contact time, pH of 6,0 and 0,5 g resin per 100 mL of solution was determined as optimum adsorption conditions. Adsorption results were applied to Langmiur and Freundlich isotherm equations. As results of isotherm investigations, the adsorption results were fitted well to Langmiur isotherm adsorption model which describes chemisorption with correlation coefficient of 0,998. Maximum adsorption capacity was determined as 52,356 mg/g. The results of the experiments show that the resin has high adsorbing capacity for Cu(II) ions.
Abstract (Original Language): 
Bu çalışmada şelatlaşma fonksiyonu olan poliamin-poliüre reçinesi sentezlenmiş ve kesikli sistemle sulu çözeltilerden Cu(II) iyonlarının adsorpsiyonla gideriminde kullanılmıştır. Adsorpsiyona pH değişimi, adsorbanın dozu, karıştırma süresi ve başlangıç derişiminin etkisi incelenmiştir. Ayrıca deney sonuçlarının Langmiur ve Freundlich denge eşitliklerine uygunluğu araştırılmıştır. Yapılan çalışmalar sonucunda optimum pH:6,0, uygun reçine dozu 0,3 g/100 mL çözelti, karıştırma süresi 60 dakika olarak belirlenmiştir. Deney verilerinin Langmuir ve Freundlich denge eşitliklerine uygulanması sonucunda, adsorpsiyonun kemisorpsiyonu açıklayan Langmuir denge eşitliğine 0,998 regresyon katsayısıyla uyduğu görülmüştür. Maksimum adsorpsiyon kapasitesi 52,356 mg/g olarak bulunmuştur. Sonuçlar sentezlenen reçinenin yüksek adsorpsiyon kapasitesine sahip olduğunu göstermektedir.

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