Understanding Photocatalytic Activity Dependence on Node Topology in Ti-Based Metal–Organic Frameworks

Nikita Kolobov, Abdelali Zaki, Katarzyna Świrk, Partha Maity, Luis Carlos Garzon Tovar, Giasemi K. Angeli, Alla Dikhtiarenko, G. Delahay, Pantelis N. Trikalitis, Abdul-Hamid M. Emwas, Amandine Cadiau, Omar F. Mohammed, Christopher H. Hendon, Karim Adil, Jorge Gascon

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


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.
Original languageEnglish (US)
Pages (from-to)1481-1487
Number of pages7
JournalACS Materials Letters
StatePublished - Apr 17 2023


Dive into the research topics of 'Understanding Photocatalytic Activity Dependence on Node Topology in Ti-Based Metal–Organic Frameworks'. Together they form a unique fingerprint.

Cite this