화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.20, No.6, 4085-4093, November, 2014
DOI10.1016/j.jiec.2014.01.007  Export Citation
Synthesis, characterization of Fe3O4@glycine doped polypyrrole magnetic nanocomposites and their potential performance to remove toxic Cr(VI)
N. Ballav, H.J. Choi1, S.B. Mishra†, and A. Maity2, †
  • Department of Applied Chemistry, University of Johannesburg, South Africa
  • 1Department of Polymer Science and Engineering, Inha University, Incheon 402-751, South Korea
  • 2Smart Polymers Group, Polymers and Composites (P&C), Materials Science and Manufacturing (MSM), Council for Scientific and Industrial Research (CSIR), Pretoria, South Africa
E-mail:,
Fe3O4 coated glycine doped polypyrrolemagnetic nanocomposite (Fe3O4@gly-PPy NC) was prepared via coating of suspended Fe3O4 nanoparticles with gly-PPy. FE-SEM and HR-TEM images indicated that Fe3O4 nanoparticles were encapsulated by precipitating gly-PPy moieties. Chromium(VI) adsorption followed a Langmuir isothermwith maximum capacity of 238-303 mg/g for a temperature range of 25-45 ℃ at pH 2. The adsorption process was governed by the ionic interaction and the reduction of Cr(VI) to Cr(III) by the PPy moiety. Results showed that NCs are effective adsorbents for the removal of Cr(VI) from wastewater and can be separated by external magnetic field from the reactor.
Keywords:Polypyrrole;Glycine;Magnetic nanocomposite;Hexavalent chromium;Adsorption
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