One-Step Synthesis of Large-Scale Graphene Film Doped with Gold Nanoparticles at Liquid–Air Interface for Electrochemistry and Raman Detection Applications | Zendy

Panpan Zhang | Zendy; Ying Huang | Zendy; Xin Lü | Zendy; Siyu Zhang | Zendy; Jingfeng Li | Zendy; Gang Wei | Zendy; Zhiqiang Su | Zendy

Open Access

One-Step Synthesis of Large-Scale Graphene Film Doped with Gold Nanoparticles at Liquid–Air Interface for Electrochemistry and Raman Detection Applications

Author(s) -

Panpan Zhang,

Ying Huang,

Xin Lü,

Siyu Zhang,

Jingfeng Li,

Gang Wei,

Zhiqiang Su

Publication year - 2014

Publication title -

langmuir

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.042

H-Index - 333

eISSN - 1520-5827

pISSN - 0743-7463

DOI - 10.1021/la5024086

Subject(s) - materials science , raman spectroscopy , nanotechnology , colloidal gold , graphene , nanoparticle , electrochemistry , doping , interface (matter) , liquid liquid , nanoscopic scale , chemical engineering , analytical chemistry (journal) , optoelectronics , electrode , chemistry , organic chemistry , chromatography , contact angle , optics , composite material , physics , engineering , sessile drop technique

We demonstrated a facile one-step synthesis strategy for the preparation of a large-scale reduced graphene oxide multilayered film doped with gold nanoparticles (RGO/AuNP film) and applied this film as functional nanomaterials for electrochemistry and Raman detection applications. The related applications of the fabricated RGO/AuNP film in electrochemical nonenzymatic H2O2 biosensor, electrochemical oxygen reduction reaction (ORR), and surface-enhanced Raman scattering (SERS) detection were investigated. Electrochemical data indicate that the H2O2 biosensor fabricated by RGO/AuNP film shows a wide linear range, low limitation of detection, high selectivity, and long-term stability. In addition, it was proved that the created RGO/AuNP film also exhibits excellent ORR electrochemical catalysis performance. The created RGO/AuNP film, when serving as SERS biodetection platform, presents outstanding performances in detecting 4-aminothiophenol with an enhancement factor of approximately 5.6 × 10(5) as well as 2-thiouracil sensing with a low concentration to 1 μM. It is expected that this facile strategy for fabricating large-scale graphene film doped with metallic nanoparticles will spark inspirations in preparing functional nanomaterials and further extend their applications in drug delivery, wastewater purification, and bioenergy.

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