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Physiochemical characterizations of electrospun (ZnO–GeO2) nanofibers and their optical properties

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Abstract

In this study, nanofiber mats consisting of two potential metal oxides were produced by electrospinning technique. An aqueous solution of zinc acetate dihydrate and germanium isopropoxide was mixed with polyvinyl alcohol solution to prepare a sol–gel that was electrospun at 20 kV. The obtained nanofiber mats were dried under a vacuum at 80 °C for 24 h and then calcined in air at different temperatures and soaking times. Physiochemical characterizations have affirmed that nanofibers composed of zinc oxide-germanium dioxide (ZnO–GeO2) can be prepared by calcination at different temperatures. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), and the Brunauer–Emmett–Teller (BET) technique were employed to characterize the as-spun nanofibers and the calcined product. The specific surface area of the calcined product decreased with increases in temperature. X-ray powder diffractometery (XRD) analysis was used to study the chemical composition and the crystallographic structure. The optical properties of the as-prepared ZnO–GeO2 nanofibers were also studied.

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Acknowledgements

This study was supported by a grant from the Korean Ministry of Education, Science and Technology (The Regional Core Research Program/Center for Healthcare Technology & Development, Chonbuk National University, Jeonju 561-756 Republic of Korea). We thank Mr. T. S. Bae and J. C. Lim, KBSI, Jeonju branch, and Mr. Jong- Gyun Kang, Centre for University Research Facility, for taking the high-quality FE-SEM and TEM images, respectively.

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Authors and Affiliations

  1. Department of Polymer Nano Science and Technology, Chonbuk National University, Jeonju, 561-756, Republic of Korea

    Muzafar A. Kanjwal

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

    Nasser A. M. Barakat

  3. Bionano System Engineering, Chonbuk National University, Jeonju, 561-756, Republic of Korea

    Nasser A. M. Barakat & Faheem A. Sheikh

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

    Dae Kwang Park & Hak Yong Kim

Authors
  1. Muzafar A. Kanjwal
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  2. Nasser A. M. Barakat
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  3. Faheem A. Sheikh
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  4. Dae Kwang Park
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  5. Hak Yong Kim
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Corresponding authors

Correspondence to Nasser A. M. Barakat or Hak Yong Kim.

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Kanjwal, M.A., Barakat, N.A.M., Sheikh, F.A. et al. Physiochemical characterizations of electrospun (ZnO–GeO2) nanofibers and their optical properties. J Mater Sci 45, 3833–3840 (2010). https://doi.org/10.1007/s10853-010-4438-z

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  • DOI: https://doi.org/10.1007/s10853-010-4438-z

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