拉曼光谱
铼
等离子体子
拉曼散射
表面等离子共振
材料科学
表面增强拉曼光谱
纳米技术
基质(水族馆)
检出限
光谱学
纳米颗粒
化学工程
化学
光电子学
光学
色谱法
物理
量子力学
海洋学
工程类
地质学
冶金
作者
Jingbin Li,Zhiwei Jiao,Junfang Li,Hua Bai,Guangcheng Xi
标识
DOI:10.1016/j.cclet.2022.05.086
摘要
Compared with noble metals, improving the sensitivity of semiconducting surface-enhanced Raman scattering (SERS) substrates is of great significance to their fundamental research and practical application of Raman spectroscopy. Herein, a simple chemical method is developed to synthesize a rhenium trioxide (ReO3) microtubes assembled with highly crystalline nanoparticles. The ReO3 microtubes show a strong and well-defined surface plasmon resonance (SPR) behavior in visible region, which is rare for non-noble metals. As a low-cost SERS substrate, the plasmonic ReO3 microtubes exhibit a Raman enhancement factor of 8.9 × 105 and a lowest detection limit of 1.0 × 10−9 mol/L for phenolic pollutants. Moreover, these ReO3 microtubule SERS substrates show excellent chemical stability and can resist the corrosion of strong acids and bases.
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