Process intensification strategies for the synthesis of superparamagnetic nanoparticles and fabrication of nano-hybrid

Suk Fun Chin, K. Swaminathan Iyer, Colin L. Raston, Martin Saunders

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Continuous flow spinning disc processing (SDP), which has extremely rapid mixing under plug flow conditions, effective heat and mass transfer, allowing high throughput with low wastage solvent efficiency, is effective in gaining access to superparamagnetic Fe3O4 nanoparticles at room temperature. These are formed by passing ammonia gas over a thin aqueous film of Fe2+/3+ which is introduced through a jet feed close to the centre of a rapidly rotating disc (500 to 2500 rpm), the particle size being controlled with a narrow size distribution over the range 5 nm to 10 nm, and the material having very high saturation magnetizations, in the range 68-78 emu g -1. SDP also shown to be effective for fabrication of superparamagnetic carbon nanotubes composite. Ultra fine (2-3 nm) magnetite (Fe3O4) nanoparticles were uniformly deposited on single-walled carbon nanotubes (SWCNTs) in situ by modified chemical precipitation method using SDP in aqueous media at room temperature under continuous flow condition.

Original languageEnglish
Title of host publicationTechnical Proceedings of the 2008 NSTI Nanotechnology Conference and Trade Show, NSTI-Nanotech, Nanotechnology 2008
Pages782-785
Number of pages4
Publication statusPublished - 13 Oct 2008
Externally publishedYes
Event2008 NSTI Nanotechnology Conference and Trade Show, NSTI Nanotech 2008 Joint Meeting, Nanotechnology 2008 - Quebec City, QC, United States
Duration: 1 Jun 20085 Jun 2008

Publication series

NameTechnical Proceedings of the 2008 NSTI Nanotechnology Conference and Trade Show, NSTI-Nanotech, Nanotechnology 2008
Volume1

Conference

Conference2008 NSTI Nanotechnology Conference and Trade Show, NSTI Nanotech 2008 Joint Meeting, Nanotechnology 2008
CountryUnited States
CityQuebec City, QC
Period1/06/085/06/08

Keywords

  • Carbon nanutubes
  • Continuous flow technology
  • Magnetic nanoparticles
  • Spinning disc processor
  • Superparamagnetic

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  • Cite this

    Chin, S. F., Swaminathan Iyer, K., Raston, C. L., & Saunders, M. (2008). Process intensification strategies for the synthesis of superparamagnetic nanoparticles and fabrication of nano-hybrid. In Technical Proceedings of the 2008 NSTI Nanotechnology Conference and Trade Show, NSTI-Nanotech, Nanotechnology 2008 (pp. 782-785). (Technical Proceedings of the 2008 NSTI Nanotechnology Conference and Trade Show, NSTI-Nanotech, Nanotechnology 2008; Vol. 1).