Removal of Cu(II) and Pb(II) by Solid-Phase Extractant Prepared by Immobilizing D2EHPA with Polysulfone
D2EHPA를 Polysulfone으로 고정화하여 제조한 고체상 추출제에 의한 Cu(II)와 Pb(II)의 제거

Sang-Kyu Kam, Jin-Woo Jeon, Min-Gyu Lee
2014 Journal of Environmental Science International  
PS-D2EHPA beads were prepared by immobilizing di-2-ethylhexyl-phosphoric acid (D2EHPA) with polysulfone (PSf). The removal experiments of Cu(II) and Pb(II) by the prepared PS-D2EHPA beads were conducted batchwise. The removal efficiency of Cu(II) and Pb(II) by PS-D2EHPA beads was increased with increasing pH of solution. The removal rate of Cu(II) and Pb(II) was well described by the pseudo-second-order kinetic model. The maximum removal capacity of Cu(II) and Pb(II) obtained from Langmuir
more » ... erm were 2.58 mg/g and 12.63 mg/g, respectively. External mass transfer coefficients for the removal of Cu(II) and Pb(II) by PS-D2EHPA beads were obtained 0.61×10 -2 2 /min, respectively.
doi:10.5322/jesi.2014.23.11.1843 fatcat:fbjjjyununfphed6jdwctm2l74