Articles
  • Characteristics of an organic-inorganic hybrid filter consisting of LaMn0.5Fe0.5O3 nanofibers dispersed in PAN

  • Hee-Seon Kima, Han-Jung Kimb, Yoonkap Kimb and Jong-Won Yoona,*

  • aDepartment of Materials Science and Engineering, Dankook University, Cheonan-si 31116, Republic of Korea
    bNano Electronic Materials and Components Research Center, Gumi Electronics and Information Technology Research Institute (GERI), Gumi-si 39171, Republic of Korea

  • This article is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Organic-inorganic hybrid nanofiber filters having the LaMnO3 and LaMn0.5Fe0.5O3 dispersed in polyacrylonitrile (PAN) were successfully synthesized by two-step electrospinning. In the first step, the LaMnO3 and LaMn0.5Fe0.5O3 nanofibers were synthesized by vertical-type electrospinning and heat treatment in air at 600 °C. The LaMnO3 and LaMn0.5Fe0.5O3 nanofibers have a single-phase orthorhombic crystal structure without forming secondary phases and impurities. TEM images revealed that the nanofibers were composed of nanoparticles with a diameter of about 15 nm in pure LaMnO3 and 18 nm in LaMn0.5Fe0.5O3 nanofibers. As a results of XPS analysis, LaMn0.5Fe0.5O3 nanofibers showed more oxygen defect than LaMnO3 nanofibers. In the second step, the LaMnO3 and LaMn0.5Fe0.5O3 nanofibers were homogeneously pulverized and mixed with a PAN solution to produce a filter using drum-type electrospinning. Filter performance was evaluated by the filter quality factor (QF) obtained by measuring the filtration efficiency and pressure drop of the filter. Compared to the reference (H11 nonwoven fabric), the QF increase rates of PAN, PAN/LaMnO3, and PAN/LaMn0.5Fe0.5O3 nanofiber filters were 4.1%, 12.4%, and 24.9%, respectively


Keywords: LaMn0.5Fe0.5O3 nanofiber, PAN, electrospinning, particulate matter filter

This Article

  • 2023; 24(5): 827-834

    Published on Oct 31, 2023

  • 10.36410/jcpr.2023.24.5.827
  • Received on Jul 4, 2023
  • Revised on Aug 23, 2023
  • Accepted on Sep 17, 2023

Correspondence to

  • Jong-Won Yoon

  • Department of Materials Science and Engineering, Dankook University, Cheonan-si 31116, Republic of Korea
    Tel : +82-41-550-3536 Fax: +82-41-569-2240

  • E-mail: jwyoon@dankook.ac.kr