TY - JOUR
T1 - Fluorinated MOF platform for selective removal and sensing of SO2 from flue gas and air
AU - Tchalala, Mohammed
AU - Bhatt, Prashant
AU - Nanaiah, Karumbaiah Chappanda
AU - Tavares, S R
AU - Adil, Karim
AU - Belmabkhout, Youssef
AU - Shkurenko, Aleksander
AU - Cadiau, Amandine
AU - Heymans, N
AU - De Weireld, G
AU - Maurin, G
AU - Salama, Khaled N.
AU - Eddaoudi, Mohamed
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledged KAUST grant number(s): CCF/1/1972–25–01, CCF/1/1972–27–01, OSR-2017-CPF-3325
Acknowledgements: Research reported in this publication was supported by KAUST funds and KAUST funding grants (CCF/1/1972–25–01, CCF/1/1972–27–01, and OSR-2017-CPF-3325)
PY - 2019/3/22
Y1 - 2019/3/22
N2 - Conventional SO2 scrubbing agents, namely calcium oxide and zeolites, are often used to remove SO2 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 SO2 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 SO2. Direct mixed gas column breakthrough and/or column desorption experiments revealed an unprecedented SO2 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 SO2 at low concentrations ranging from 25 to 500 p.p.m.
AB - Conventional SO2 scrubbing agents, namely calcium oxide and zeolites, are often used to remove SO2 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 SO2 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 SO2. Direct mixed gas column breakthrough and/or column desorption experiments revealed an unprecedented SO2 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 SO2 at low concentrations ranging from 25 to 500 p.p.m.
UR - http://hdl.handle.net/10754/631807
UR - https://www.nature.com/articles/s41467-019-09157-2
UR - http://www.scopus.com/inward/record.url?scp=85063353137&partnerID=8YFLogxK
U2 - 10.1038/s41467-019-09157-2
DO - 10.1038/s41467-019-09157-2
M3 - Article
C2 - 30902992
VL - 10
JO - Nature Communications
JF - Nature Communications
SN - 2041-1723
IS - 1
ER -