Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
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Removal Characteristics of Phosphorus at Synthetic Variation of Zirconium Mesoporous Structure

지르코늄 메조기공 구조체의 합성조건 변화에 따른 인 제거 특성

  • Lee, Sang-hyup (Water Environment and Remediation Research Center, Korea Institute of Science and Technology) ;
  • Lee, Byoung-cheun (Water Environment and Remediation Research Center, Korea Institute of Science and Technology) ;
  • Lee, Kwan-yong (Water Environment and Remediation Research Center, Korea Institute of Science and Technology) ;
  • Choi, Yong-su (Water Environment and Remediation Research Center, Korea Institute of Science and Technology) ;
  • Park, Ki-young (Department of Civil and Environmental System Engineering, Konkuk University)
  • 이상협 (한국과학기술연구원 수질환경 및 복원연구센터) ;
  • 이병천 (한국과학기술연구원 수질환경 및 복원연구센터) ;
  • 이관용 (한국과학기술연구원 수질환경 및 복원연구센터) ;
  • 최용수 (한국과학기술연구원 수질환경 및 복원연구센터) ;
  • 박기영 (건국대학교 사회환경시스템공학과)
  • Received : 2005.07.26
  • Accepted : 2005.08.29
  • Published : 2005.11.30
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Abstract

The focus of this study was to examine the phosphorus removal characteristic by zirconium mesoporous structured material synthesized on various conditions. The zirconium sulfate-surfactant mesoporous structured material(ZS) was synthesized by hydro-thermal synthesis. The material has regular hexagonal array of surfactant micelles and sulfate ion ($HSO_4{^-}$). We confirmed that sulfate ion in zirconium mesoporous structured material can be ion-exchanged with phosphate ion ($H_2PO_4{^-}$) in phosphoric acid solution. On the X-ray diffraction (XRD) pattern of ZS, three peaks which shows the important characteristics of hexagonal crystal lattice were observed at (100), (110) and (200). The transmission electron micrograph (TEM) show high crystallization with pore size about $47{\AA}$. The maximum adsorption capacity of ZS was as great as 3.2 mmol-P/g-ZS. From the adsorption isotherm, correlation coefficients were higher for the Langmuir isotherm than the Freundlich isotherm. With the respect of chain length of surfactant, the adsorption capacity for phosphate synthesized with C12 was higher than C16 and C18. The highest amount of adsorbed phosphate on ZS was observed at the surfactant-to-zirconium molar ratio of 0.5 to 1.

Keywords

Acknowledgement

Grant : 차세대 핵심 환경 기술개발사업

Supported by : 환경부

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