Mixed-Metal Cerium/Zirconium MOFs with Improved Nerve Agent Detoxification Properties
| Autor: | Faezeh Farzaneh, Jorge A. R. Navarro, Elham Geravand, Rodrigo Gil-San-Millan, Francisco J. Carmona |
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| Rok vydání: | 2020 |
| Předmět: |
Isoflurophate
Surface Properties chemistry.chemical_element 010402 general chemistry 01 natural sciences Catalysis Inorganic Chemistry Hydrolysis Molecule Particle Size Physical and Theoretical Chemistry Metal-Organic Frameworks Bond cleavage Zirconium Aqueous solution Molecular Structure 010405 organic chemistry Cerium 0104 chemical sciences chemistry Nerve Agents Mesoporous material Porosity Nuclear chemistry |
| Zdroj: | Inorganic Chemistry. 59:16160-16167 |
| ISSN: | 1520-510X 0020-1669 |
| DOI: | 10.1021/acs.inorgchem.0c01434 |
| Popis: | A series of Ce/Zr mixed-metal-organic frameworks with different topology/connectivity, namely, Ce/Zr-UiO-66 (U01, U02, and U03) (fcu (12-c)), Ce/Zr-DUT-67-PZDC (D01 and D02) (reo (8-c)), and Ce/Zr-MOF-808 (M01, M02, and M03) (spn (6-c)) were evaluated toward the detoxification of toxic nerve agent model diisopropylfluorophosphate (DIFP) at room temperature in unbuffered aqueous solution. Noteworthily, the catalytic rate for P-F bond cleavage increased with increasing Ce/Zr molar ratio. A further increase in catalytic activity can be achieved by Mg(OMe)2 doping of the mixed-metal MOFs as exemplified with M01@Mg(OMe)2 and M02@Mg(OMe)2 systems. The results show that Mg(OMe)2 incorporation into the mesoporous cavities of M01 and M02 give rise to P-F hydrolytic degradation half-lives of nearly 5 and 2 min with 100% degradation of DIFP after 55 and 65 min for M01@Mg(OMe)2 1:2 and M02@Mg(OMe)2 1:4, respectively. |
| Databáze: | OpenAIRE |
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