@article{Wang2025, 
author = {Zihang Wang and Wenxiu Liu and Hui Wang and Lei Li and Manqin Guan and Xiaodong Zhang and Yi Xie},
title = {Recognizing Ti-site coordination geometry in titanium-oxo clusters for enhanced photo-Fenton-like catalysis},
year = {2025},
journal = {Nano Research},
volume = {18},
number = {10},
pages = {94907993},
keywords = {charge transfer, titanium-oxo clusters, advanced oxidation technologies, photo-Fenton-like},
url = {https://www.sciopen.com/article/10.26599/NR.2025.94907993},
doi = {10.26599/NR.2025.94907993},
abstract = {Titanium-based materials have emerged as promising candidates for photo-Fenton-like catalysis, whereas their structural complexities impede precise understanding of the relevant structure–activity relationships. Owing to their well-defined and tunable structures, titanium-oxo clusters appear to be facile models for looking into the photophysical and photochemical processes in Ti-H2O2 systems. Using PTC-3 as a prototype, we interrogated the relationship between Ti-site coordination environments and photo-Fenton-like behaviors. Through integrated in-situ/ex-situ spectroscopic analyses and theoretical simulations, we elucidated light-driven H2O2 activation on hexa-coordinated and penta-coordinated Ti sites in PTC-3. The superiority of penta-coordinated Ti site was identified, where extended visible-light absorption and promoted electron transfer could synergistically boost the activation of H2O2 into superoxide radicals. This work brightens the role of Ti-site coordination geometry in photo-Fenton-like processes and paves the way for pursuing titanium-based advanced oxidation.}
}