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Issue 36, 2010
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Adsorption properties in high optical quality nanoZIF-8 thin films with tunable thickness

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Abstract

We report processing of a thin film by chemical solution deposition of a microporous ZIF-8 nanoparticle dispersion. By using the drain and capillary regimes involved in the dip-coating process, we tuned the thickness of the films from 40 nm to 1 μm and controlled the packing of the nanoparticles on the substrate. The high optical quality thin films show a dual hierarchical porous structure from the micropores of the framework and the mesoporous interparticular voids. Moreover, vapor sorption properties of the microporous ZIF-8 based thin films have been evaluated by ellipsometric porosimetry. The hydrophobic films show alcohol, THF and hydrocarbon adsorption. Experiments for isopropanol/water separation have been carried out and the selective adsorption of the alcohol versus the water makes these thin films good candidates for vapor sensors.

Graphical abstract: Adsorption properties in high optical quality nanoZIF-8 thin films with tunable thickness

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Supplementary files

Article information


Submitted
24 Feb 2010
Accepted
25 Jun 2010
First published
05 Aug 2010

J. Mater. Chem., 2010,20, 7676-7681
Article type
Paper

Adsorption properties in high optical quality nanoZIF-8 thin films with tunable thickness

A. Demessence, C. Boissière, D. Grosso, P. Horcajada, C. Serre, G. Férey, G. J. A. A. Soler-Illia and C. Sanchez, J. Mater. Chem., 2010, 20, 7676
DOI: 10.1039/C0JM00500B

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