Production and characterization of submicron hematite (α-Fe2O3) particles by ultrasonic spray pyrolysis method

Burak Klrcl, Burçak Ebin, Sebahattin Gürmen

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Citations (Scopus)

Abstract

The ultrasonic spray pyrolysis (USP) method has been used to prepare submicron hematite (α-Fe2O3) particles using two different industrial pickling solutions of iron chloride (41 g/L FeCl2 and 54 g/L FeCl3) Particles were obtained by thermal decomposition of generated aerosols from precursor solutions using 1.7 MHz ultrasonic atomizer. Reaction temperature was set up at 800 °C and aerosol droplets were carried into the heated zone by 0.7 L/min air flow rate. X-Ray Diffraction (XRD) studies were used to determine the crystal structure and crystallite size of the particles. Results indicate that patterns correspond to hematite phase with rhombohedral crystal structure (space group: R3c). The crystallite sizes of particles prepared from FeCl2 and FeCl3 solutions that were calculated from Scherrer equation are 59 and 33 nm, respectively. Scanning electron microscope (SEM) and energy dispersive spectroscopy (EDS) investigations give detailed information about particle size, morphology and composition. SEM micrographs show that hematite nanoparticles aggregate and formed spherical secondary particles in submicron range.

Original languageEnglish
Title of host publication3rd International Advances in Applied Physics and Materials Science Congress
EditorsAsli Sonmez, Zehra Banu Bahsi, Ahmet Yavuz Oral
PublisherAmerican Institute of Physics Inc.
Pages265-268
Number of pages4
ISBN (Electronic)9780735411975
DOIs
Publication statusPublished - 2013
Event3rd International Advances in Applied Physics and Materials Science Congress, APMAS 2013 - Antalya, Turkey
Duration: 24 Apr 201328 Apr 2013

Publication series

NameAIP Conference Proceedings
Volume1569
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference3rd International Advances in Applied Physics and Materials Science Congress, APMAS 2013
Country/TerritoryTurkey
CityAntalya
Period24/04/1328/04/13

Bibliographical note

Publisher Copyright:
© 2013 AIP Publishing LLC.

Keywords

  • iron oxide
  • nanocrystals structure
  • ultrasonic spray pyrolysis

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