화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.34, 374-381, February, 2016
DOI10.1016/j.jiec.2015.12.013  Export Citation
Efficient removal of europium from aqueous solutions using attapulgite-iron oxide magnetic composites
Zhanhui Lu†, Zhiqi Hao, Jian Wang1, and Lei Chen2, †
  • School of Mathematics and Physical Science, North China Electric Power University, Beijing 102206, PR China
  • 1School of Environment and Chemical Engineering, North China Electric Power University, Beijing 102206, PR China
  • 2School of Chemical Engineering, Shandong University of Technology, 255049, Zibo, Shandong, PR China
E-mail:,
The attapulgite-iron oxide magnetic composites were synthesized by coprecipitation of iron oxides on attapulgite particles, and characterized by FTIR and XRD. The composites had the saturation magnetization value of 32.7 emu/g, which made the composites separate from aqueous solution easily using the magnetic separation method in large scale. The composites could preconcentrate Eu(III) efficiently from aqueous solutions. The sorption of Eu(III) on the composites was affected by pH and ionic strength obviously. The sorption isotherms were well simulated by Langmuir model, and the maximum sorption capacity was calculated to be 4.94 × 10-4 mol/g at pH 5.0, which was much higher other materials.
Keywords:Magnetic attapulgite-iron oxide composites;Eu(III);Sorption;Magnetic separation;Interaction mechanism
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