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Issue
Korean Journal of Chemical Engineering,
Vol.36, No.5, 807-815, 2019
Heterostructured Co0.5Mn0.5Fe2O4-polyaniline nanofibers: highly efficient photocatalysis for photodegradation of methyl orange
Jung HR, Kim KN, Lee WJ
1D hollow Co0.5Mn0.5Fe2O4-PANI nanofibers were synthesized through sequential processes of electrospinning, heat treatment in air, and chemical polymerization of polyaniline. The morphology and photocatalytic properties of heterostructured Co0.5Mn0.5Fe2O4-PANI as photocatalysts were investigated by SEM, TEM, XRD, TGA, and photocatalysis experiments of methyl orange under visible-light irradiation. The hollow Co0.5Mn0.5Fe2O4-PANI nanofibers showed a high photocatalytic degradation efficiency of 92% within 120 min and a kinetic constant of 115-times higher than hollow Co0.5Mn0.5Fe2O4 nanofibers. These high photocatalytic properties are attributed to both unique 1D hollow nanofiber morphology with macroporous hollow core, PANI/Co0.5Mn0.5Fe2O4/PANI shell and the heterojunction structure composed of Co0.5Mn0.5Fe2O4 and PANI. In addition, the outstanding magnetic properties of the hollow Co0.5Mn0.5Fe2O4- PANI nanofibers with its inherent spinel structure facilitate the recovery of the photocatalyst.
Keywords: Hollow-structured; Heterojunction; Photocatalytic; Magnetically Separable; Electrospinning
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[Cited By]
  1. Adhikari S, Mandal S, Kim DH, Korean Journal of Chemical Engineering, 37(12), 2359, 2020
  2. Zhu S, Nie L, Journal of Industrial and Engineering Chemistry, 93, 28, 2021
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