화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Applied Chemistry for Engineering, Vol.29, No.3, 264-269, June, 2018
DOI10.14478/ace.2017.1132  Export Citation
Polysulfone에 Carbon Nanotubes, Tributyl Phosphate와 Di-(2-ethylhexyl)-phosphoric Acid를 고정화한 하이브리드 비드의 제조와 Sr(II)의 제거 특성
Preparation of Hybrid Beads Containing Polysulfone Modified with Carbon Nanotubes, Tributyl Phosphate and Di-(2-ethylhexyl)-phosphoric Acid and Removal Characteristics of Sr(II)
감상규, 서정호1, 윤종원2, 이민규3, †
  • 제주대학교 환경공학과
  • 1울산과학대학교 환경화학공업과
  • 2대구대학교 생명공학과
  • 3부경대학교 화학공학과
Sang-Kyu Kam, Jung-Ho Suh1, Jong-Won Yun2, and Min-Gyu Lee3, †
  • Department of Environmental Engineering, Jeju National University, 102 Jejudaehak-ro, Jeju-si, Jeju Special Self-Governing Province 63243, Korea
  • 1Department of Environmental & Chemical Industry, Ulsan College, 57 Daehak-ro, Nam-gu, Ulsan 44610, Korea
  • 2Department of Biotechnology, Daegu University, 201, Daegu-daero, Jinryang-eup, Kyungsan, Gyeongbuk 38453, Korea
  • 3Department of Chemical Engineering, Pukyoung National University, 365 Sinseon-ro, Nam-Gu, Busan 48547, Korea
E-mail:
초록
Polysulfone (PSf)에 탄소 나노 튜브(CNTs, carbon nano tubes)와 두 가지 추출제, di-(2-ethylhexyl)-phosphoric acid (D2EHPA)와 tributyl phosphate (TBP)를 고정화시킨 PSf/D2EHPA/TBP/CNTs 비드를 제조하였다. 제조한 비드의 특성은 SEM, TGA 및 FTIR로 분석하였다. 제조한 PSF/D2EHPA/TBP/CNTs 비드에 의한 Sr(II)의 제거속도는 유사 2차 속도식에 의해 잘 설명되었으며, Langmuir 등온식으로 구한 Sr(II)의 최대 제거 용량은 5.52 mg/g이었다. 본 연구에서 제조한 PSf/D2EHPA/CNTs 비드에 의한 Sr(II)의 제거효율은 TBP가 첨가되지 않은 PSf/D2EHPA/CNTs 비드에 의한 Sr(II)의 제거효율 보다 크게 향상되는 결과를 나타내었다.
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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