Hou Mengjing, Huang Yu, Ma Lingwei, Zhang Zhengjun
State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, People's Republic of China.
Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, People's Republic of China.
Nanoscale Res Lett. 2015 Dec;10(1):444. doi: 10.1186/s11671-015-1147-1. Epub 2015 Nov 17.
Surface-enhanced Raman scattering (SERS) effect is quite preferred to detect trace pollutants, and reusable SERS substrate is of important practical value. In this research, a kind of effective SiO2 nanorods (NRs)@ Au nanoparticles (NPs) substrate was fabricated completely with physical methods, and it was quite sensitive so that 1 × 10(-6) M monochlorobiphenyl (CB) could be detected. Furthermore, congeners of CB could be detected by reusing this kind of SERS substrate, and the cleaning treatment between every two detections was very simple. The excellent performance of the reusable SERS substrate indicated its great application potential.
表面增强拉曼散射（SERS）效应在检测痕量污染物方面具有很大优势，可重复使用的SERS基底具有重要的实际应用价值。本研究采用物理方法成功制备了一种高效的SiO₂纳米棒（NRs）@金纳米颗粒（NPs）基底，该基底灵敏度很高，能够检测出1×10⁻⁶ M的单氯联苯（CB）。此外，利用这种可重复使用的SERS基底能够检测出CB的同系物，并且每次检测之间的清洗处理非常简单。这种可重复使用SERS基底的优异性能表明了其巨大的应用潜力。
