Stable Cu2 O@Au for Accurate and Rapid Surface Enhancement Raman Scattering Analysis of Rhodamine B
10.11895/j.issn.0253-3820.171314
- VernacularTitle:复合纳米材料Cu2O@Au对水体中罗丹明B的检测应用研究
- Author:
Meng Xiao WANG
1
;
Zhen ZHANG
;
Jing LIU
;
Sheng Shu ZHANG
Author Information
1. 临沂大学
- Keywords:
Cuprous oxide;
Gold nanoparticles;
Surface-enhanced Raman scattering;
Rhodamine B
- From:
Chinese Journal of Analytical Chemistry
2017;45(12):2026-2031
- CountryChina
- Language:Chinese
-
Abstract:
A simple and efficient method for fabricating a novel surface-enhanced Raman scattering ( SERS) substrate with good reproducibility and high SERS activity was reported. Cu2 O was prepared by mixing CuCl2 ·2H2 O with ascorbic acid, which was then used as the templates for depositing of gold nanoparticles ( AuNPs) on their surfaces, forming Cu2 O@ Au with heterostructures. Transmission electron microscopy, scanning electron microscopy and X-ray diffraction observation revealed that Cu2 O had polyhedral structure and smooth surface, and AuNPs were closely deposited on the surface of Cu2 O. It was used as SERS substrate for detection of Rhodamine B with linear detection range of 1 × 10-2-5 × 10-6 mol/L, and detection limit of 3 ×10-7 mol/L. Cu2 O@Au showed good chemical stability, remained stable in acid, PBS and river samples, and could be used in the SERS detection of target in water sample.
