Controlled Encapsulation of Gold Nanoparticles into Zr-Metal–Organic Frameworks with Improved Detection Limitation of Volatile Organic Compounds via Surface-Enhanced Raman Scattering

Inorganic Chemistry 2023
Phuc Khanh Lam, Jian-Jie Liao, Miao-Chun Lin, Yu-Hsiu Li, Tsu-Hao Wang, Hsin-Kai Huang, Yu-An Hsu, Hao-Ying Patterson Hsieh, Pu-Yun Kuan, Ching-Tien Chen, Guo-Xiu Hao, Chia-Kuang Tsung, Kevin C.-W. Wu, Andris Šutka, Martynas Kinka, Lien-Yang Chou, Fa-Kuen Shieh

Volatile organic compounds (VOCs) have harmful effects on human health and the environment but detecting low levels of VOCs is challenging due to a lack of reliable biomarkers. However, incorporating gold nanoparticles (Au NPs) into metal–organic frameworks (MOFs) shows promise for VOC detection. In this study, we developed nanoscale Au@UiO-66 that exhibited surface-enhanced Raman scattering (SERS) activity even at very low levels of toluene vapors (down to 1.0 ppm) due to the thickness of the shell and strong π–π interactions between benzenyl-type linkers and toluene. The UiO-66 shell also increased the thermal stability of the Au NPs, preventing aggregation up to 550 °C. This development may be useful for sensitive detection of VOCs for environmental protection purposes.

Keywords
Sers Substrate, Nanostructures, Catalysis, Energy, Films, Core
DOI
10.1021/acs.inorgchem.3c01600
Hyperlink
https://pubs.acs.org/doi/10.1021/acs.inorgchem.3c01600

Lam, P., Liao, J., Lin, M., Li, Y., Wang, T., Huang, H., Hsu, Y., Patterson Hsieh, H., Kuan, P., Chen, C., Hao, G., Tsung, C., Wu, K., Šutka, A., Kinka, M., Chou, L., Shieh, F. Controlled Encapsulation of Gold Nanoparticles into Zr-Metal–Organic Frameworks with Improved Detection Limitation of Volatile Organic Compounds via Surface-Enhanced Raman Scattering. Inorganic Chemistry, 2023, Vol. 62, No. 37, pp.14896-14901. ISSN 0020-1669. e-ISSN 1520-510X. Available from: doi:10.1021/acs.inorgchem.3c01600

Publication language
English (en)