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REAKTİF MAVİ 221’İN POMZA İLE ADSORPSİYONU VE KİNETİĞİ

ADSORPTION OF REACTIVE BLUE 221 ON PUMICE STONE AND KINETIC STUDY

Journal Name:

  • Gazi Üniversitesi Mühendislik-Mimarlık Fakültesi Dergisi

Publication Year:

  • 2014

Key Words:

Keywords (Original Language):

Author NameUniversity of AuthorFaculty of Author
Abstract (2. Language): 
In this study, it was investigated batch adsorption of Reactive Blue 221 which is a textile dye with pumice stone. pH, shaking time, shaking rate, adsorbent particle size and amount were selected as constant parameters but solution temperatures and dye concentrations were selected as variables. Adsorption capacities were determined as 36.60 mg/g ve 47.90 mg/g ve 54.20 mg/g for pumice stone at 293 K, 318 K and 333 K temperatures respectively, in the 7.0 pH, 0.59 mm particle size, 2.00 g adsorbent amount and approximately 1.5 hours shaking time for 8x10-4 M dye concentration. Adsorption data were good agreement with Langmuir isotherm and adsorption was an endothermic and spontaneous process in the results of thermodynamic parameters. The kinetic data of the sorption showed that the pseudo second- order equation was the more appropriate and it was not only obtained an economic process with using of environmentally friendly, easily finded and low cost adsorbent and but also high color removal was obtained in dye.
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Abstract (Original Language): 
Bu çalışmada tekstil boyası olan Reaktif Mavi 221’in pomza taşı ile kesikli adsorpsiyonu incelenmiştir. pH, karıştırma süresi, adsorbent partikül büyüklüğü ve miktarı sabit tutulurken sıcaklık ve boya derişimi değişken parametreler olarak seçilmiştir. 7,0 pH değerinde, 0,59 mm partikül büyüklüğünde, 2,00 g adsorbent miktarında ve yaklaşık 1,5 saatlik karıştırma süresinde tespit edilen adsorplama kapasiteleri 8x10-4 M boya derişimi için 293 K, 318 K ve 333 K sıcaklıklarda sırasıyla 36,60 mg/g ve 47,90 mg/g ve 54,20 mg/g ‘dır. Adsorpsiyon verilerinin Langmuir izotermine daha fazla uyum gösterdiği ve termodinamik parametre sonuçlarında adsorpsiyonun endotermik ve kendiliğinden olduğu tespit edilmiştir. Sorpsiyon kinetik verilerinin sahte ikinci dereceden kinetiğe uyum gösterdiği sonucuna varılırken çevre dostu, kolay bulunabilen ve ucuz adsorbent kullanılarak ekonomik bir proses elde etmenin yanısıra boyada büyük ölçüde renk giderimi sağlanmıştır.
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  • 4
807
812
  • Turkish

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