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Preparation of nanofibers consisting of MnO/Mn3O4 by using the electrospinning technique: the nanofibers have two band-gap energies

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Abstract

In the present study, nanofibers consisting of manganese monoxide (MnO), which is hard to prepare because of the chemical activity of the manganese metal, and the popular Mn3O4 have been synthesized via the electrospinning technique. The nanofibers were obtained by electrospinning of an aqueous sol–gel consisting of manganese acetate tetra-hydrate and poly(vinyl alcohol). The obtained nanofiber mats were dried in vacuum at 80°C for 24 h and then calcined in argon atmosphere at 900°C for 5 h. According to X-ray diffraction results, the obtained nanofibers contain 65% MnO. Transmission electron microscope analysis reveals good crystallinity of the produced nanofibers. UV–visible spectroscopic analysis has indicated that the produced nanofibers have two band-gap energies, 2 and 3.7 eV, which enhances utilizing of the nanofibers in different applications.

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Authors and Affiliations

  1. Chemical Engineering Department, Faculty of Engineering, El-Minia University, El-Minia, Egypt

    Nasser A. M. Barakat

  2. Department of Bionano System Engineering, College of Engineering, Chonbuk National University, Jeonju, 561-756, Republic of Korea

    Nasser A. M. Barakat & Hak Yong Kim

  3. Division of Advanced Materials, RCIT Chonbuk National University, Jeonju, 561-756, Republic of Korea

    Kee-Do Woo

  4. School of Chemical Engineering, Chonbuk National University, Jeonju, 561-756, Republic of Korea

    S. G. Ansari

  5. Department of Textile Engineering, Chonbuk National University, Jeonju, 561-756, Republic of Korea

    Jung-Ahn Ko, Muzafar A. Kanjwal & Hak Yong Kim

Authors
  1. Nasser A. M. Barakat
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  2. Kee-Do Woo
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  3. S. G. Ansari
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  4. Jung-Ahn Ko
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  5. Muzafar A. Kanjwal
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  6. Hak Yong Kim
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Correspondence to Nasser A. M. Barakat or Hak Yong Kim.

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Barakat, N.A.M., Woo, KD., Ansari, S.G. et al. Preparation of nanofibers consisting of MnO/Mn3O4 by using the electrospinning technique: the nanofibers have two band-gap energies. Appl. Phys. A 95, 769–776 (2009). https://doi.org/10.1007/s00339-008-5067-0

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  • DOI: https://doi.org/10.1007/s00339-008-5067-0

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