Fabrication and Formation Mechanism of Ag Nanoplate‐Decorated Nanofiber Mats and Their Application in SERS | Zendy

Jia Peng | Zendy; Chang Jiao | Zendy; Wang Jianqiang | Zendy; Zhang Pan | Zendy; Cao Bing | Zendy; Geng Yuting | Zendy; Wang Xiuxing | Zendy; Pan Kai | Zendy

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Fabrication and Formation Mechanism of Ag Nanoplate‐Decorated Nanofiber Mats and Their Application in SERS

Author(s) -

Jia Peng,

Chang Jiao,

Wang Jianqiang,

Zhang Pan,

Cao Bing,

Geng Yuting,

Wang Xiuxing,

Pan Kai

Publication year - 2016

Publication title -

chemistry – an asian journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.18

H-Index - 106

eISSN - 1861-471X

pISSN - 1861-4728

DOI - 10.1002/asia.201500777

Subject(s) - polyacrylonitrile , nanofiber , materials science , substrate (aquarium) , nanotechnology , raman scattering , nanoparticle , chemical engineering , polymer , fabrication , raman spectroscopy , composite material , medicine , oceanography , physics , alternative medicine , engineering , pathology , geology , optics

We report a new simple method to fabricate a highly active SERS substrate consisting of poly‐ m ‐phenylenediamine/polyacrylonitrile (PmPD/PAN) decorated with Ag nanoplates. The formation mechanism of Ag nanoplates is investigated. The synthetic process of the Ag nanoplate‐decorated PmPD/PAN (Ag nanoplates@PmPD/PAN) nanofiber mats consists of the assembly of Ag nanoparticles on the surface of PmPD/PAN nanofibers as crystal nuclei followed by in situ growth of Ag nanoparticles exclusively into nanoplates. Both the reducibility of the polymer and the concentration of AgNO 3 are found to play important roles in the formation and the density of Ag nanoplates. The optimized Ag nanoplates@PmPD/PAN nanofiber mats exhibit excellent activity and reproducibility in surface‐enhanced Raman scattering (SERS) detection of 4‐mercaptobenzoic acid (4‐MBA) with a detection limit of 10 −10 m , making the Ag nanoplates@PmPD/PAN nanofiber mats a promising substrate for SERS detection of chemical molecules. In addition, this work also provides a design and fabrication process for a 3D SERS substrate made of a reducible polymer with noble metals.

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