Selective decontamination of the reactive air pollutant nitrous acid via node-linker cooperativity in a metal–organic framework† †Electronic supplementary information (ESI) available. See DOI: 10.1039/c9sc01357a
| Autor: | McGrath, Devon T., Ryan, Michaela D., MacInnis, John J., VandenBoer, Trevor C., Young, Cora J., Katz, Michael J. |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | Chemical Science |
| ISSN: | 2041-6539 2041-6520 |
| Popis: | The environmental pollutant nitrous acid is rapidly and selectively sorbed and converted to benign products in the metal–organic framework UiO-66-NH2. Nitrous acid (HONO) is a reservoir of NOx and an emerging pollutant having direct impacts on air quality, both in- and outdoors, as well as on human health. In this work, the amine-functionalized metal–organic framework (MOF), UiO-66-NH2, was investigated due to its potential to selectively decontaminate nitrous acid at environmentally relevant concentrations. UiO-66-NH2 proved to be effective in the removal of nitrous acid from a continuous gaseous stream. This is observed via the formation of an aryl diazonium salt that subsequently converts to a phenol with a concomitant release of nitrogen gas. This process is preceded via the formation of the nitrosonium cation (likely protonation from an acidic proton on the node). Thus, UiO-66-NH2 is capable of selectively converting the pollutant nitrous acid to benign products. |
| Databáze: | OpenAIRE |
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