论文成果
The enhanced SERS effect of Ag/ZnO nanoparticles through surface hydrophobic modification
- 发布时间：2021-03-15
- 点击次数：
- 关键字：Ag/ZnO nanocomposites; SA/PVP; Hydrophobic; SERS
- 摘要：Ag/ZnO nanocomposites modified by a mixture of stearic acid (SA) and polyvinylpyrrolidone (PVP) were obtained using a heating reflux method. Fourier transform infrared spectroscopy (FT-IR) suggests that organic SA/PVP was bonded onto the surface of Ag/ZnO nanocrystals, converting the wettability property of the nanostructures from hydrophilic to hydrophobic. The modified Ag/ZnO nanostructures were confirmed as effective Raman substrates, with a 3-fold signal enhancement compared to the ordinary hydrophilic Ag/ZnO substrate for detecting Rh B molecules due to the hydrophobic condensation effect. It is expected that the modified Ag/ZnO nanoparticles have potential for SERS-based rapid detection of molecules. (C) 2016 Elsevier B.V. All rights reserved.
- 卷号：377
- 是否译文：否