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Microfluidic & nanofluidic technologies for chemistry, physics, biology, and bioengineering



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Paper

Lab Chip, 2008, 8, 439 - 442, DOI: 10.1039/b716195f

Fabrication of carbon nano-tubes decorated with ultra fine superparamagnetic nano-particles under continuous flow conditions

Suk Fun Chin, K. Swaminathan Iyer and Colin L. Raston

Ultra fine (2–3 nm) magnetite (Fe3O4) nano-particles are uniformly deposited on single-walled carbon nano-tubes (SWCNTs) pre-functionalised with carboxylic acid groups using microwave radiation. The deposition process involves chemical precipitation associated with continuous flow spinning disc processing (SDP), as a rapid, environmentally friendly approach which is readily scalable for large scale synthesis. The resulting decorated SWCNTs are superparamagnetic with specific saturated magnetization of 30 emu g-1.

Graphical abstract image for this article (ID: b716195f)