Continuous nanoparticle production by microfluidic-based emulsion, mixing and crystallization

Y. F. Su, H. Kim, S. Kovenklioglu, W. Y. Lee

Research output: Contribution to journalArticlepeer-review

61 Scopus citations

Abstract

BaSO4 and 2,2′-dipyridylamine (DPA) nanoparticles were synthesized as reactive crystallization and anti-solvent recrystallization examples, respectively, of using the microfluidic-based emulsion and mixing approach as a new avenue of continuously producing inorganic and organic nanoparticles. BaSO4 nanoparticles in the size range of 15-100 nm were reactively precipitated within the confinement of an aqueous droplet which was coalesced from two separate aqueous droplets containing BaCl2 and (NH4)2SO4 using a three T-junction micromixer configuration constructed with commercially available simple tubing and fitting supplies. Also, DPA nanoparticles of about 200 nm were crystallized by combining DPA+ethanol and water droplets using the same micromixer configuration.

Original languageEnglish
Pages (from-to)2625-2629
Number of pages5
JournalJournal of Solid State Chemistry
Volume180
Issue number9
DOIs
StatePublished - Sep 2007

Keywords

  • Crystallization
  • Emulsion
  • Microfluidics
  • Microreactor
  • Nanoparticles

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