TY - JOUR
T1 - Understanding Photocatalytic Activity Dependence on Node Topology in Ti-Based Metal–Organic Frameworks
AU - Kolobov, Nikita
AU - Zaki, Abdelali
AU - Świrk, Katarzyna
AU - Maity, Partha
AU - Garzon Tovar, Luis Carlos
AU - Angeli, Giasemi K.
AU - Dikhtiarenko, Alla
AU - Delahay, G.
AU - Trikalitis, Pantelis N.
AU - Emwas, Abdul-Hamid M.
AU - Cadiau, Amandine
AU - Mohammed, Omar F.
AU - Hendon, Christopher H.
AU - Adil, Karim
AU - Gascon, Jorge
N1 - KAUST Repository Item: Exported on 2023-05-05
Acknowledgements: Funding for this work was provided by King Abdullah University of Science and Technology (KAUST). Funding for this work was provided by King Abdullah University of Science and Technology (KAUST) This work is based upon work supported by the National Science Foundation through the Division of Materials Research under Grant No. DMR-1956403. C.H.H. also acknowledges the Camille and Henry Dreyfus Foundation.
PY - 2023/4/17
Y1 - 2023/4/17
N2 - Despite the drive to develop more efficient Ti-based metal–organic framework (MOF) photocatalysts, MIL-125-NH2 is still the benchmark, and only a few design principles have been offered to improve photocatalytic performance. Linker functionalization in Ti MOFs has been shown to enable photocatalysis under visible light by closing the electronic band gap, significantly improving charge carrier lifetimes. Limited by known Ti-based MOFs, the role of node nuclearity and topology on photocatalytic activity remains unclear. Here, we report a new MOF, ICGM-1, a 3D-connected framework featuring 1D Ti–O rods. Photocatalytic hydrogen evolution reveals a significant difference in activity, which we attribute solely to node geometry. Using time-resolved spectroscopy and DFT calculations, we ascribe these differences to subtle electronic and geometric properties, paving the way for the development of Ti-MOF photocatalysts.
AB - Despite the drive to develop more efficient Ti-based metal–organic framework (MOF) photocatalysts, MIL-125-NH2 is still the benchmark, and only a few design principles have been offered to improve photocatalytic performance. Linker functionalization in Ti MOFs has been shown to enable photocatalysis under visible light by closing the electronic band gap, significantly improving charge carrier lifetimes. Limited by known Ti-based MOFs, the role of node nuclearity and topology on photocatalytic activity remains unclear. Here, we report a new MOF, ICGM-1, a 3D-connected framework featuring 1D Ti–O rods. Photocatalytic hydrogen evolution reveals a significant difference in activity, which we attribute solely to node geometry. Using time-resolved spectroscopy and DFT calculations, we ascribe these differences to subtle electronic and geometric properties, paving the way for the development of Ti-MOF photocatalysts.
UR - http://hdl.handle.net/10754/691451
UR - https://pubs.acs.org/doi/10.1021/acsmaterialslett.2c01115
U2 - 10.1021/acsmaterialslett.2c01115
DO - 10.1021/acsmaterialslett.2c01115
M3 - Article
SN - 2639-4979
SP - 1481
EP - 1487
JO - ACS Materials Letters
JF - ACS Materials Letters
ER -