Particle size studies to reveal crystallization mechanisms of the metal organic framework HKUST-1 during sonochemical synthesis

Mitchell R. Armstrong, Sethuraman Senthilnathan, Christopher J. Balzer, Bohan Shan, Liang Chen, Bin Mu

Research output: Contribution to journalArticle

19 Scopus citations

Abstract

Systematic studies of key operating parameters for the sonochemical synthesis of the metal organic framework (MOF) HKUST-1(also called CuBTC) were performed including reaction time, reactor volume, sonication amplitude, sonication tip size, solvent composition, and reactant concentrations analyzed through SEM particle size analysis. Trends in the particle size and size distributions show reproducible control of average particle sizes between 1 and 4 μm. These results along with complementary studies in sonofragmentation and temperature control were conducted to compare these results to kinetic crystal growth models found in literature to develop a plausible hypothetical mechanism for ultrasound-assisted growth of metal-organic-frameworks composed of a competitive mechanism including constructive solid-on-solid (SOS) crystal growth and a deconstructive sonofragmentation.

Original languageEnglish (US)
Pages (from-to)365-370
Number of pages6
JournalUltrasonics Sonochemistry
Volume34
DOIs
StatePublished - Jan 1 2017

Keywords

  • Crystallization
  • CuBTC or HKUST-1
  • Metal organic frameworks
  • Particle size distribution
  • Sonochemistry
  • Ultrasound-assisted synthesis

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Acoustics and Ultrasonics
  • Radiology Nuclear Medicine and imaging

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