@article{Chen2025, 
author = {Jinzhou Chen and Yanhui Su and Yuhan Wang and Zhihe Wei and Zhangyi Zheng and Huihong Yuan and Zhenyang Jiao and Zhao Deng and Wenjun Yang and Yang Peng},
title = {Ultrahigh loading of confined plasmonic nanoparticles within thiol-functionalized metal-organic frameworks for efficient photocatalytic CO2 reduction to CO and hydrocarbons},
year = {2025},
journal = {Nano Research},
volume = {18},
number = {2},
pages = {94907181},
keywords = {metal-organic frameworks, photocatalytic CO2 reduction, hot electron, plasmonic resonance, nanoparticle migration},
url = {https://www.sciopen.com/article/10.26599/NR.2025.94907181},
doi = {10.26599/NR.2025.94907181},
abstract = {Porous materials can serve as optimal supporters for the fabrication of confined plasmon nano-photocatalysts with high dispersity. The low-loading amounts of the confined nanoparticles (NPs) due to their easy-to-migrate tendency out of the pores, however, cause a bottleneck for the photocatalytic performance. We herein reported the in-situ growth of Ag NPs within thio-functionalized UiO-66 metal-organic frameworks (MOFs). Owing to the anchoring effects of the thiol groups, Ag nanoparticles were stabilized in the channels at ultrahigh loading amounts (up to 51.2%) for significantly enhanced plasmonic resonance. Through optimizing the loading amounts of confined Ag and the remaining pore volumes for mass diffusion, we achieved an exceptional catalytic activity for the photocatalytic reduction of CO2 with Ag@MOFs. The photo-induced electron transfer rate is as high as 142.4 µmol·g–1·h–1, which is ~ 17.4 times higher than bare UiO-66-(SH)2. Notably, the enhanced charge transfer kinetics, facilitated by the plasmon-induced hot-electron injections, enables the multiple-electron reduction of CO2 to hydrocarbons. This work presents a straightforward strategy for constructing confined plasmon NPs with ultrahigh loading amounts, and demonstrates their remarkable performance in photocatalytic CO2 reduction.}
}