Preparation of Ag/Ag ₂ W ₂ O ₇ nanoribbons and their SERS detection for dye molecules

Abstract

Sodium tungstate dehydrate (Na 2 WO 4 ⋅2H 2 O ≥ 99.5%), sodium borohydride (NaBH 4 , ≥98%) and HNO 3 was purchased from Macklin Chemical Co., Ltd. Silver nitrate (AgNO 3 , ≥ 99.8%), ethanol absolute was received from Tianjin Sailboat Chemical Reagent Technology Co., Ltd. Methylene blue (MB) and Rhodamine B (Rh B) were bought from Tianjin scientific chemical reagent Co., Ltd. Monocrystalline silicon chip were purchased from Kaihua Lijing Silicon Material Co., Ltd. Deionized water (> 8.2 MΩ) was used as solvent in all experiments. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.