Open AccessPreparation of Ag/Ag 2 W 2 O 7 nanoribbons and their SERS detection for dye molecules
Author(s) -
Li Weijun,
Cheng Mingming,
Li Chenyan,
Liu Yingkai
Publication year - 2021
Publication title -
micro and nano letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.25
H-Index - 31
ISSN - 1750-0443
DOI - 10.1049/mna2.12018
Subject(s) - raman spectroscopy , high resolution transmission electron microscopy , materials science , analytical chemistry (journal) , scanning electron microscope , transmission electron microscopy , rhodamine b , methylene blue , raman scattering , detection limit , substrate (aquarium) , molecule , nuclear chemistry , nanotechnology , chemistry , optics , chromatography , organic chemistry , physics , oceanography , photocatalysis , geology , composite material , catalysis
Ag 2 W 2 O 7 nanoribbons were synthesized by hydrothermal method and then Ag/Ag 2 W 2 O 7 NRs were developed by in situ chemical‐reduction with NaBH 4 . The samples were characterized by X‐ray diffraction (XRD), scanning electron microscopy, and UV–vis spectroscopy, high‐resolution transmission electron microscope (HRTEM), and Raman spectrum. In addition, methylene blue and Rhodamine B were selected as probe molecules to explore surface‐enhanced Raman scattering effect of Ag/Ag 2 W 2 O 7 NRs. It was found that the detection of limit and enhancement factor for methylene blue is 8.91 × 10 −13 m and 2.78 × 10 7 , whereas the counterpart for Rhodamine B is 8.71 × 10 −12 m and 4.34 × 10 6 on the Ag/Ag 2 W 2 O 7 NRs substrate. Relative standard deviation was not exceed 19% when methylene blue concentration reached 1.0 × 10 −6 m , it can be seen that the substrate has good uniformity, strength stability and high repeatability, which can be applied to the detection of organic dyes and additives.