化学
罗丹明6G
贵金属
拉曼散射
纳米复合材料
纳米颗粒
还原剂
基质(水族馆)
金属
拉曼光谱
银纳米粒子
纳米技术
化学工程
分析化学(期刊)
光学
分子
冶金
材料科学
有机化学
海洋学
工程类
地质学
物理
作者
Jie Wang,Fangling Cui,Sibin Chu,Xiaoquan Jin,Jun Pu,Zhenghua Wang
标识
DOI:10.1002/cplu.201400028
摘要
Abstract Gold and silver nanoparticles with a narrow size distribution were grown in situ on the surfaces of Cu 2 O nanocubes through a wet‐chemical reduction route. The Cu 2 O nanocubes serve as both the substrate and reducing agent. The as‐prepared Cu 2 OAu and Cu 2 OAg nanocomposites still retain the cubic morphology of the original Cu 2 O nanocubes. The Cu 2 OAu and Cu 2 OAg nanocomposites can serve as effective surface‐enhanced Raman scattering (SERS) substrates. Rhodamine 6G as a Raman probe was applied to determine the effects of the SERS substrates; the results show that Cu 2 OAg nanocomposites have higher sensitivity and good reproducibility. Furthermore, the Cu 2 OAg substrate was also applied to detect plasticizers, such as dimethyl phthalate and dibutyl phthalate, and shows potential applications in the area of food safety screening.
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