Journal
APPLIED SURFACE SCIENCE
Volume 423, Issue -, Pages 349-353Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2017.06.183
Keywords
ZIF-8; Monodispersed; CO2 adsorption; Knoevenagel condensation reaction
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Funding
- National Natural Science Foundation of China [41402037, 21573197]
- State Key Laboratory of Chemical Engineering [SKL-ChE-16D03]
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Monodispersed zeolitic imidazolate frameworks (ZIFs) were prepared with a simple method using dimethylsulfoxide (DMSO) as solvent. This method yields ZIF-8 nanoparticles with a narrow particle size distribution of 90-110 nm and the dispersion is highly stable against agglomeration. These particles have larger nanosized porosity and enhanced CO2 adsorption capability compared to ZIF-8 prepared with different solvents such as methanol or N, N-dimethyl formamide. Their uniform size and surface chemistry also lead to superior performance in the Knoevenagel condensation reactions. The ZIF-8 nanoparticles possess high thermal stability up to 550 degrees C and the preparation steps are easy for scaling up which are favorable for industrial applications. (C) 2017 Elsevier B.V. All rights reserved.
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