한국환경과학회지 (Journal of Environmental Science International)

  • 제14권12호
  • /
  • Pages.1203-1209
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  • 2005
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  • 1225-4517(pISSN)
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  • 2287-3503(eISSN)
한국환경과학회 (The Korean Environmental Sciences Society)
권호 표지
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수용액중의 진주층에 대한 염기성 염료의 흡착매개변수 및 흡착모델 선정

Selection of Adsorption Model and Parameters for Basic Dyes from Aqueous Solution onto Pearl Layer

  • 신춘환 (동서대학교 환경공학과) ;
  • 송동익 (경북대학교 화학공학과)
  • Shin Choon-Hwan (Department of Environmental Engineering Dongseo University) ;
  • Song Dong-lk (Department of Chemical Enginering, Kyungpnk National University)
  • 발행 : 2005.12.01
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초록

Basic dyes, Rhodamine 6G(R6G), Rhodamine B(RB), and Methylene Blue(MB), dissolved in water were used to investigate single-component adsorption affinity to the pearl layer fractionated according to the size. Unfractionated pearl layers were also used as adsorbents for the R6G and RB. The Langmuir and the Redlich-Peterson(RP) models were used to fit the adsorption data, and the goodness of fit was examined by using determination coefficient($R^2$) and standard deviation(SSE). The 3-parameter RP model was found to be better in describing the dye adsorption data than the 2 parameter Langmuir model, as can be expected from the number of parameters involved in the model. The adsorption affinity to the fractionated pearl layer was higher than that to the unfractionated layer The affinity order to the fractionated Conchiolin layer was found to be R6G > MB > RB. Furthermore, the dye adsorption capacity of the various types of pearl layer was found to be in the order, the fractionated pearl > powdered pearl > unfractionated pearl, exhibiting different adsorption isotherms according to the types of layer used in the study.

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