Synthesis of multiwall α-Fe 2 O 3 hollow fibers via a centrifugal spinning technique

Mandana Akia, Andre Mkhoyan, Karen Lozano

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

Hollow hematite (α-Fe2O3) fine fibers with multiwall structure were synthesized by utilizing a centrifugal spinning technique. Aqueous solutions of polyvinyl pyrrolidone and iron (III) nitrate nonahydrate were prepared and spun into fibers. The precursor fibers were heat treated at 650 °C to form iron oxide fibers. Scanning electron micrographs revealed the formation of iron oxide hollow fibers with multiwall structure with average wall thickness of 55 ± 15 nm and outer fiber diameter of 852 ± 86 nm. The formation of α-Fe2O3 was confirmed by X-ray diffraction analysis and the phase identification was verified by XRD pattern and transmission electron microscopy analysis. These hollow structure α-Fe2O3 fibers have promising uses in important biological processes and biomedical applications.

Original languageEnglish (US)
Pages (from-to)552-557
Number of pages6
JournalMaterials Science and Engineering C
Volume102
DOIs
StatePublished - Sep 2019

Bibliographical note

Funding Information:
This research was supported by NSF PREM award under grant No. DMR-1523577: UTRGV-UMN Partnership for Fostering Innovation by Bridging Excellence in Research and Student Success. This project was partially supported by the MRSEC program of the National Science Foundation under Award DMR-1420013. STEM analysis was performed in the College of Science and Engineering Characterization Facility of the University of Minnesota, which receives partial support from the NSF through the MRSEC program. We also like to thank Dr. Jason Myers and Mr. Jacob Held for their assistance with STEM data acquisition.

Funding Information:
This research was supported by NSF PREM award under grant No. DMR-1523577 : UTRGV-UMN Partnership for Fostering Innovation by Bridging Excellence in Research and Student Success. This project was partially supported by the MRSEC program of the National Science Foundation under Award DMR-1420013 . STEM analysis was performed in the College of Science and Engineering Characterization Facility of the University of Minnesota, which receives partial support from the NSF through the MRSEC program. We also like to thank Dr. Jason Myers and Mr. Jacob Held for their assistance with STEM data acquisition.

Publisher Copyright:
© 2019 Elsevier B.V.

Keywords

  • Centrifugal spinning
  • Composite
  • Hollow fibers
  • Multiwall
  • α-Fe O

How much support was provided by MRSEC?

  • Partial

Reporting period for MRSEC

  • Period 6

PubMed: MeSH publication types

  • Journal Article

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