V. Subramanian, R. Baskaran , H. Krishnan

  • Radiological Safety Division, Indira Gandhi Centre for Atomic Research, Kalpakkam, India

Received: May 31, 2009
Revised: May 31, 2009
Accepted: May 31, 2009
Download Citation: ||https://doi.org/10.4209/aaqr.2008.03.0008  

  • Download: PDF

Cite this article:
Subramanian, V., Baskaran, R. and Krishnan, H. (2009). Thermal Plasma Synthesis of Iron Oxide Aerosols and Their Characteristics. Aerosol Air Qual. Res. 9: 172-186. https://doi.org/10.4209/aaqr.2008.03.0008



Thermal Plasma synthesis of Hematite Fe2O3 particles has been carried out for the generation of sub-micrometer range of particles. The plasma torch acts as a source of thermal energy and the plasma forming gas provides an inert atmosphere. The plasma column is stabilized by gas flow stabilization method in which a flowing external cold layer of a gas surrounds the arc column and the sheath gas enters into the reaction region. The sub-micrometer particles are generated by varying sheath gas with air and nitrogen, so that, the oxygen availability is varied during the formation of sub-micrometer particles. The plasma synthesized particles are characterized by X-ray diffraction, Moessbauer spectroscopy and spectrochemical analysis. The particle size distribution of the suspended aerosols and the aerosol deposits are determined. The aerosol size spectrum showed the presence of particles ranging from nano-meter to micrometer. Quantification of Fe2+ and Fe3+ present in the aerosol deposits showed that the generation of Fe2+ has been enhanced by 2% when the sheath gas is changed from air to nitrogen.

Keywords: Hematite; Aerosol characteristics; Fe2+ and Fe3+ states

Share this article with your colleagues 


Subscribe to our Newsletter 

Aerosol and Air Quality Research has published over 2,000 peer-reviewed articles. Enter your email address to receive latest updates and research articles to your inbox every second week.

79st percentile
Powered by
   SCImago Journal & Country Rank

2023 Impact Factor: 2.5
5-Year Impact Factor: 2.8

Aerosol and Air Quality Research partners with Publons

CLOCKSS system has permission to ingest, preserve, and serve this Archival Unit
CLOCKSS system has permission to ingest, preserve, and serve this Archival Unit

Aerosol and Air Quality Research (AAQR) is an independently-run non-profit journal that promotes submissions of high-quality research and strives to be one of the leading aerosol and air quality open-access journals in the world. We use cookies on this website to personalize content to improve your user experience and analyze our traffic. By using this site you agree to its use of cookies.