화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.41, 165-174, September, 2016
DOI10.1016/j.jiec.2016.07.017  Export Citation
Synthesis of rectorite/Fe3O4-CTAB composite for the removal of nitrate and phosphate from water
Fei Wang, Dan Liu1, Pengwu Zheng2, and Xiaofei Ma†
  • Chemistry Department, School of Science, Tianjin University, Tianjin 300072, China
  • 1School of Physics and Materials Engineering, Dalian Nationalities University, Dalian 116600, China
  • 2School of Pharmacy, Jiangxi Science and Technology Normal University, Nanchang, Jiangxi 330013, China
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The rectorite/Fe3O4-CTAB composite (REC/Fe3O4-CTAB) was fabricated by introducing cetyl trimethyl ammonium bromide (CTAB) and Fe3O4 onto the layers of raw rectorite (REC). The layers of rectorite were intercalated or exfoliated, and CTAB enhanced the electrostatic attraction by quaternary ammonium cations towards nitrate and phosphate anions. The order of Fe3O4 and CTAB introduction had great effect on the adsorption. When Fe3O4 was loaded before CTAB on REC, the obtained composites exhibited better adsorption. Themaximum adsorption capacities could reach 182.1 mg/g for NO3- and 174.5 mg/g for PO4 3-. Besides, REC/Fe3O4-CTAB composite could be easily regenerated with NaOH solution.
Keywords:Rectorite;Modification;Nitrate;Phosphate;Adsorption
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