DOI QR코드

DOI QR Code

고체상 추출제로서 Polyvinyl Chloride에 D2EHPA를 고정화한 PVC-D2EHPA의 제조와 Cu(II) 제거 특성

Preparation of PVC-D2EHPA beads by Immobilization of D2EHPA on Polyvinyl Chloride as Solid Phase Extractant and Removal Characteristics of Cu(II)

  • Kam, Sang-Kyu (Department of Environmental Engineering, Jeju National University) ;
  • You, Hae-Na (Department of Chemical Engineering, Pukyong National University) ;
  • Lee, Dong-Hwan (Department of Chemistry, Dong Eui University) ;
  • Lee, Min-Gyu (Department of Chemical Engineering, Pukyong National University)
  • 투고 : 2014.04.16
  • 심사 : 2014.05.28
  • 발행 : 2014.06.30

초록

The solid phase extractant (PVC-D2EHPA bead) was prepared by immobilizing di-2-ethylhexyl-phosphoric acid (D2EHPA) with polyvinyl chloride (PVC). The prepared PVC-D2EHPA beads were characterized by using fourier transform infrared spectrometer (FTIR) and scanning electron microscopy (SEM). The removal experiments of Cu(II) by PVC-D2EHPA beads conducted batchwise. The removal kinetics of Cu(II) was found to follow the pseudo-second-order model. The equilibrium data fitted well with Langmuir isotherm model and the maximum removal capacity was 2.6 mg/g at $20^{\circ}C$. The optimum pH region was in the range of 3.5 to 6. and the standard free energy (${\Delta}G^{\circ}$) was between -4.67~-4.98 kJ/mol, indicating the spontaneous nature of Cu(II) removal by PVC-D2EHPA beads.

키워드

참고문헌

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피인용 문헌

  1. Preparation of Solid-Phase Extractant by Immobilizing Di-(2-ethylhexyl)phosphoric Acid (D2EHPA) and Tri-butyl-phosphate (TBP) in Polysulfone and Removal Characteristics of Cu(II) vol.24, pp.1, 2015, https://doi.org/10.5322/JESI.2015.24.1.1
  2. Removal Characteristics of Sr(II) by Solid-Phase Extractant Prepared by Immobilizing Di-(2-ethylhexyl)phosphoric acid (D2EHPA) and Tri-butyl-phosphate (TBP) in Polysulfone vol.24, pp.3, 2015, https://doi.org/10.5322/JESI.2015.24.3.267