Affiliations 

  • 1 Fundamental and Applied Science Department, Universiti Teknologi PETRONAS, 32610, Bandar Seri Iskandar, Perak, Malaysia
  • 2 Department of Physics, North Tehran Branch, Islamic Azad University, 16511- 53311, Tehran, Iran
  • 3 Faculty of Mechanical Engineering, Esslingen University of Applied Sciences, Kanalstrasse 33, 73728, Esslingen, Germany
  • 4 Department of Physics, Faculty of Science, Universiti Putra Malaysia, UPM Serdang, Selangor Darul Ehsan, 43400, Malaysia
  • 5 Geoscience Department, Universiti Teknologi PETRONAS, 32610, Bandar Seri Iskandar, Perak, Malaysia
Heliyon, 2023 Mar;9(3):e13256.
PMID: 36851968 DOI: 10.1016/j.heliyon.2023.e13256

Abstract

This study explores the potential of using cobalt ferrite (CF) nanoparticles grown in situ on eggshell membranes (ESM) to mitigate the increasing problem of electromagnetic interference (EMI). A simple carbonization process was adopted to synthesize CF nanoparticles on ESM. The study further examines the composites' surface morphology and chemical composition and evaluates their microwave absorption performance (MAP) at X-band frequency. Results showed that the composite of CF and ESM - CESM@CF, exhibited a strong RL peak value of -39.03 mm with an optimal thickness of 1.5 mm. The combination of CF and ESM demonstrates excellent impedance matching and EM wave attenuation. The presence of numerous interfaces, conduction loss from the morphology, interfacial polarisation, and dual influence from both CF and ESM contribute to the high MAP of the composite. CESM@CF composite is projected as an excellent biomass-based nano-composite for EM wave absorption applications.

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.