1. Scalable continuous solvo-jet process for ZIF-8 nanoparticles
- Author
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Han Seul Choi, Youn Sang Bae, Sang Hyuk Im, Suk Jin Choung, Jinsoo Kim, and Seung Joon Lee
- Subjects
Materials science ,General Chemical Engineering ,Nucleation ,Nanoparticle ,Crystal growth ,Nanotechnology ,General Chemistry ,Industrial and Manufacturing Engineering ,law.invention ,Adsorption ,Chemical engineering ,law ,Particle-size distribution ,Environmental Chemistry ,Particle size ,Gas separation ,Crystallization - Abstract
Conventionally, ZIF-8 particles have been prepared in batch solvothermal reactors, imposing limitations on the stability to achieve large-scale, rapid, and reproducible synthesis. In this study, ZIF-8 nanoparticles with narrow particle size distribution were produced continuously in a tubular reactor by a novel solvo-jet process, which combined solvothermal reaction for nucleation and vaporization-induced solid–liquid reaction for crystal growth and facet development. The size and morphology of the product ZIF-8 nanoparticles were significantly affected by the reaction temperature and residence time. With increasing reaction temperature from 120 °C to 180 °C, the average particle size decreased from 155 nm to 35 nm. The mechanism of crystal formation by continuous solvo-jet process was studied. Furthermore, gas separation properties of the product ZIF-8 nanoparticles were investigated by the adsorption of various gases.
- Published
- 2015
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