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

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

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

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.

Original languageEnglish
Pages (from-to)14896-14901
Number of pages6
JournalInorganic Chemistry
Volume62
Issue number37
DOIs
StatePublished - 18 Sep 2023

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