期刊
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
卷 -, 期 -, 页码 -出版社
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.2c01377
关键词
thiabendazole; Fe3O4@UiO-66-NH2@Au; surface-enhanced Raman scattering spectroscopy
In this work, a SERS substrate material with magnetic metal-organic framework and gold nanoparticles was constructed, and its excellent performance and stability in TBZ detection were demonstrated. This study provides potential for the practical application of SERS in food and environmental pollution detection.
Substrate materials possessing high sensitivity and storage stability are vital for the practical analytical applications of surface-enhanced Raman scattering (SERS) techniques. In this work, SERS substrate material (Fe3O4@UiO-66-NH2@Au) on a magnetic metal-organic framework (Fe3O4@UiO-66-NH2) decorated with gold nanoparticles (AuNPs) was constructed. The as-prepared SERS substrate combined the properties of the abundant hotspots between the AuNPs and the excellent adsorption performance of UiO-66-NH2 for trace molecules. Meanwhile, the presence of Fe3O4 can be helpful to separate quickly, and the generation of the coffee ring effect was weakened under the action of an external magnetic field. The results showed that the new substrate materials have excellent SERS performance. The substrate material was used for TBZ detection; it exhibited good linearity in the range from 0.025 to 2 ppm, and the limit of detection (LOD) could be down to 6.5 ppb. The Raman signal intensity of the substrate material was stable after 22 days of storage at room temperature. We constructed a sensitive, stable, and rapid method based on SERS for TBZ detection in this work, which also has great potential for the detection of food and environmental pollution in practical applications.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据