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CYCU-3: an Al(III)-based MOF for SO2 capture and detection.
- Source :
- Dalton Transactions: An International Journal of Inorganic Chemistry; 3/14/2024, Vol. 53 Issue 10, p4790-4796, 7p
- Publication Year :
- 2024
-
Abstract
- The Al(III)-based MOF CYCU-3 exhibits a relevant SO<subscript>2</subscript> adsorption performance with a total uptake of 11.03 mmol g<superscript>−1</superscript> at 1 bar and 298 K. CYCU-3 displays high chemical stability towards dry and wet SO<subscript>2</subscript> exposure. DRIFTS experiments and computational calculations demonstrated that hydrogen bonding between SO<subscript>2</subscript> molecules and bridging Al(III)–OH groups are the preferential adsorption sites. In addition, photoluminescence experiments demonstrated the relevance of CYCU-3 for application in SO<subscript>2</subscript> detection with good selectivity for SO<subscript>2</subscript> over CO<subscript>2</subscript> and H<subscript>2</subscript>O. The change in fluorescence performance demonstrates a clear turn-on effect after SO<subscript>2</subscript> interaction. Finally, the suppression of ligand–metal energy transfer along with the enhancement of ligand-centered π* → π electronic transition was proposed as a plausible fluorescence mechanism. [ABSTRACT FROM AUTHOR]
- Subjects :
- CHEMICAL stability
HYDROGEN bonding
ENERGY transfer
PHOTOLUMINESCENCE
FLUORESCENCE
Subjects
Details
- Language :
- English
- ISSN :
- 14779226
- Volume :
- 53
- Issue :
- 10
- Database :
- Complementary Index
- Journal :
- Dalton Transactions: An International Journal of Inorganic Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 175877315
- Full Text :
- https://doi.org/10.1039/d3dt04073a