Preparation of Graphene/Fe3O4/Polypyrrole Nanocomposite and its Adsorption for Cr(VI) Ions

Wei Yao; Yun Lu

doi:10.4028/www.scientific.net/AMR.905.61

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 905Preparation of Graphene/Fe3O4/Polypyrrole...

Preparation of Graphene/Fe₃O₄/Polypyrrole Nanocomposite and its Adsorption for Cr(VI) Ions

Abstract:

The novel magnetic nanocomposites have been prepared by simultaneous forming of Fe₃O₄ nanospheres and graphene sheets in an anchoring mode and polymerizing of pyrrole on the Fe₃O₄surface. TEM, XRD and XPS were used to characterize the as-prepared products. Nanocomposites exhibit excellent adsorption capability of 348.4 mg g^-1for heavy metal Cr (VI) ions, and moreover, are stable, separable easily under external magnetic field and recyclable, retaining about 83.1% of the removal efficiency after four adsorption-desorption cycles. The adsorption isotherm has been studied and shows a good consistency with the Langmuir mode. The nanocomposites could be a good candidate for efficient removal of Cr (VI) from the wastewater.

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Periodical:

Advanced Materials Research (Volume 905)

Pages:

61-64

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.905.61

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Online since:

April 2014

Authors:

Wei Yao, Yun Lu*

Keywords:

Fe₃O₄, Graphene, Heavy Metal Ion, Magnetic Adsorbent, Nanocomposite, Polypyrrole

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