Please use this identifier to cite or link to this item: https://dspace.ctu.edu.vn/jspui/handle/123456789/4341
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dc.contributor.authorLe, Dang Truong-
dc.contributor.authorTran, Vinh Hoang-
dc.contributor.authorLe, Dieu Thu-
dc.contributor.authorTran, Ngoc Quang-
dc.contributor.authorNguyen, Thi Minh Hang-
dc.contributor.authorNguyen, Dang Khoi-
dc.contributor.authorTrinh, Xuan Anh-
dc.contributor.authorTran, Le Anh-
dc.date.accessioned2018-09-18T02:10:15Z-
dc.date.available2018-09-18T02:10:15Z-
dc.date.issued2018-
dc.identifier.issn2525-2518-
dc.identifier.urihttp://dspace.ctu.edu.vn/jspui/handle/123456789/4341-
dc.description.abstractIn this work, we have proposed a method for synthesis of chitosan/Fe3O4/graphene oxide (CS/Fe3O4/GO) nanocomposite and its application for efficient removal of Fe(lII) ions from aqueous solutions. For this purpose, first, graphene oxide (GO) was prepared from graphite by Hummer's method, then, after CS/Fe3O4/GO was synthesized via chemical co-precipitation method from a mixture solution of GO, Fe3+,Fe2+ and chitosan. The synthesized GO and CS/Fe3O4/GO were characterized by X-ray diffraction (XRD), field emission scanning electron microscope (FE-SEM), vibrating sample magnetometer (VSM), dynamic light scattering (DLS) and measuring zeta potential techniques. Optimized adsorption conditions for Fe3+ removal such as pH and contact time were investigated. Fe(III) adsorption equilibrium data were fitted well to the Langmuir isotherm and the maximum monolayer capacity (qmax), was calculated as of 6.5 mg.g-1. In addition, the recoverable and recyclable of CS/Fe3O4/GO nanocomposite has been investigated. Data showed that after 6 adsorption-regeneration cycles, the Fe3+ removal efficiency of CS/Fe3O4/GO was still higher than 60%. The results indicated CS/Fe3O4/GO nanocomposite can be used as a cheap and efficient adsorbent for removal of heavy metal ions from aqueous solutions.vi_VN
dc.language.isoenvi_VN
dc.relation.ispartofseriesVietnam Journal of Science and Technology;Vol.56(2) .- P.158-164-
dc.subjectGraphene oxide (GO)vi_VN
dc.subjectFe3O4 nanoparticlesvi_VN
dc.subjectHeavy metal ionsvi_VN
dc.subjectFe(III)vi_VN
dc.subjectChitosanvi_VN
dc.subjectNanocompositevi_VN
dc.subjectMagnetic adsorbentvi_VN
dc.titleSynthesis and application of chitosan/graphene oxide/magnetite nanostructured composite for Fe(III) removal from aqueous solutionvi_VN
dc.typeArticlevi_VN
Appears in Collections:Vietnam journal of science and technology

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