Issue 3, 2016

Imparting Brønsted acidity into a zeolitic imidazole framework

Abstract

In this work, we demonstrate the impartment of Brønsted acidity into a zeolitic imidazole framework, ZIF-90, via post-synthetically oxidizing the aldehyde group into carboxylate group to afford ZIF-90-COOH. The preservation crystallinity and porosity after post-synthetic oxidation was confirmed by powder X-ray diffraction studies and N2 gas adsorption analysis respectively. The successful conversion of the aldehyde group into carboxylate group was verified by FT-IR studies, which resulted in remarkable enhancement of methylene blue uptake in the resultant ZIF-90-COOH due to the strong electrostatic interactions between cationic methylene blue and the anionic carboxylate group.

Graphical abstract: Imparting Brønsted acidity into a zeolitic imidazole framework

Supplementary files

Article information

Article type
Research Article
Submitted
18 محرم 1437
Accepted
24 ربيع الأول 1437
First published
26 ربيع الأول 1437

Inorg. Chem. Front., 2016,3, 393-396

Imparting Brønsted acidity into a zeolitic imidazole framework

K. Williams, L. Meng, S. Lee, L. Lux, W. Gao and S. Ma, Inorg. Chem. Front., 2016, 3, 393 DOI: 10.1039/C5QI00229J

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