Fluorinated MOF platform for selective removal and sensing of SO2 from flue gas and air
書誌事項
- 公開日
- 2019-03-22
- 権利情報
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- https://creativecommons.org/licenses/by/4.0
- https://creativecommons.org/licenses/by/4.0
- DOI
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- 10.1038/s41467-019-09157-2
- 公開者
- Springer Science and Business Media LLC
説明
<jats:title>Abstract</jats:title><jats:p>Conventional SO<jats:sub>2</jats:sub> scrubbing agents, namely calcium oxide and zeolites, are often used to remove SO<jats:sub>2</jats:sub> using a strong or irreversible adsorption-based process. However, adsorbents capable of sensing and selectively capturing this toxic molecule in a reversible manner, with in-depth understanding of structure–property relationships, have been rarely explored. Here we report the selective removal and sensing of SO<jats:sub>2</jats:sub> using recently unveiled fluorinated metal–organic frameworks (MOFs). Mixed gas adsorption experiments were performed at low concentrations ranging from 250 p.p.m. to 7% of SO<jats:sub>2</jats:sub>. Direct mixed gas column breakthrough and/or column desorption experiments revealed an unprecedented SO<jats:sub>2</jats:sub> affinity for KAUST-7 (NbOFFIVE-1-Ni) and KAUST-8 (AlFFIVE-1-Ni) MOFs. Furthermore, MOF-coated quartz crystal microbalance transducers were used to develop sensors with the ability to detect SO<jats:sub>2</jats:sub> at low concentrations ranging from 25 to 500 p.p.m.</jats:p>
収録刊行物
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- Nature Communications
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Nature Communications 10 (1), 1-, 2019-03-22
Springer Science and Business Media LLC