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http://dx.doi.org/10.14478/ace.2017.1132

Preparation of Hybrid Beads Containing Polysulfone Modified with Carbon Nanotubes, Tributyl Phosphate and Di-(2-ethylhexyl)-phosphoric Acid and Removal Characteristics of Sr(II)  

Kam, Sang-Kyu (Department of Environmental Engineering, Jeju National University)
Suh, Jung-Ho (Department of Environmental & Chemical Industry, Ulsan College)
Yun, Jong-Won (Department of Biotechnology, Daegu University)
Lee, Min-Gyu (Department of Chemical Engineering, Pukyoung National University)
Publication Information
Applied Chemistry for Engineering / v.29, no.3, 2018 , pp. 264-269 More about this Journal
Abstract
PSf/D2EHPA/TBP/CNTs beads were prepared by immobilizing carbon nanotubes (CNTs) and two extractants, di-(2-ethylhexyl)-phosphoric acid (D2EHPA) and tributyl phosphate (TBP) on polysulfone (PSf). The prepared PSf/D2EHPA/TBP/CNTs beads were characterized by SEM, TGA, and FTIR. The removal rate of Sr(II) by PSf/D2EHPA/TBP/CNTs beads was well described by the pseudo-second-order kinetic model. The maximum removal capacity of Sr(II) obtained from Langmuir isotherm was found to be 5.52 mg/g. The results showed that the removal efficiency of Sr(II) by PSf/D2EHPA/CNTs beads prepared in this study was significantly improved compared to that of using PSf/D2EHPA/CNTs beads without TBP.
Keywords
carbon nanotubes; di-(2-ethylhexyl)-phosphoric acid; tributyl phosphate; polysulfone; Sr(II);
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Times Cited By KSCI : 4  (Citation Analysis)
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