TY - JOUR
T1 - Metal-organic frameworks composed of nitro groups
T2 - Preparation and applications in adsorption and catalysis
AU - Lee, Gyudong
AU - Yoo, Dong Kyu
AU - Ahmed, Imteaz
AU - Lee, Hye Jin
AU - Jhung, Sung Hwa
N1 - Publisher Copyright:
© 2022 Elsevier B.V.
PY - 2023/1/1
Y1 - 2023/1/1
N2 - In this review, metal–organic frameworks functionalized with nitro groups (MOF-NO2s) were analyzed, for the first time, in terms of their preparation and applications. MOF-NO2s were obtained by direct synthesis from nitro-functionalized linker precursors and by post-synthetic modification of a pristine MOF without a –NO2 group. Additionally, the applications of MOF-NO2s, specifically in adsorption and catalysis, were discussed. CO2 capture using MOF-NO2s was highly effective due to the polar nitro group which aided in quadrupole–dipole interactions. Furthermore, on account of the electron-withdrawing nitro group, MOF-NO2s were efficient in the adsorption of other gases, such as nitrogen. Similarly, MOF-NO2s were promising for the removal of hazardous organics from water and particulate matter from the air mainly due to the charge separation on the nitro group. MOF-NO2s could be very useful in catalysis that relies on the Lewis acidity because the electron-withdrawing nitro group can increase Lewis acidity. MOF-NO2s can be used in other applications, such as detection of H2S. Based on the analysis of the achievements thus far, the prospects of MOF-NO2s for further research were provided.
AB - In this review, metal–organic frameworks functionalized with nitro groups (MOF-NO2s) were analyzed, for the first time, in terms of their preparation and applications. MOF-NO2s were obtained by direct synthesis from nitro-functionalized linker precursors and by post-synthetic modification of a pristine MOF without a –NO2 group. Additionally, the applications of MOF-NO2s, specifically in adsorption and catalysis, were discussed. CO2 capture using MOF-NO2s was highly effective due to the polar nitro group which aided in quadrupole–dipole interactions. Furthermore, on account of the electron-withdrawing nitro group, MOF-NO2s were efficient in the adsorption of other gases, such as nitrogen. Similarly, MOF-NO2s were promising for the removal of hazardous organics from water and particulate matter from the air mainly due to the charge separation on the nitro group. MOF-NO2s could be very useful in catalysis that relies on the Lewis acidity because the electron-withdrawing nitro group can increase Lewis acidity. MOF-NO2s can be used in other applications, such as detection of H2S. Based on the analysis of the achievements thus far, the prospects of MOF-NO2s for further research were provided.
KW - Adsorption
KW - Catalysis
KW - Detection
KW - Electron-withdrawing group
KW - Metal–organic framework
KW - Nitro group
UR - http://www.scopus.com/inward/record.url?scp=85135807226&partnerID=8YFLogxK
U2 - 10.1016/j.cej.2022.138538
DO - 10.1016/j.cej.2022.138538
M3 - Review article
AN - SCOPUS:85135807226
SN - 1385-8947
VL - 451
JO - Chemical Engineering Journal
JF - Chemical Engineering Journal
M1 - 138538
ER -