Facile Fabrication of Homogeneous 3D Silver Nanostructures on Gold-Supported Polyaniline Membranes as Promising SERS Substrates
Citations Over TimeTop 10% of 2010 papers
Abstract
We report a facile synthesis of large-area homogeneous three-dimensional (3D) Ag nanostructures on Au-supported polyaniline (PANI) membranes through a direct chemical reduction of metal ions by PANI. The citric acid absorbed on the Au nuclei that are prefabricated on PANI membranes directs Ag nanoaprticles (AgNPs) to self-assemble into 3D Ag nanosheet structures. The fabricated hybrid metal nanostructures display uniform surface-enhanced Raman scattering (SERS) responses throughout the whole surface area, with an average enhancement factor of 10(6)-10(7). The nanocavities formed by the stereotypical stacking of these Ag nanosheets and the junctions and gaps between two neighboring AgNPs are believed to be responsible for the strong SERS response upon plasmon absorption. These homogeneous metal nanostructure decorated PANI membranes can be used as highly efficient SERS substrates for sensitive detection of chemical and biological analytes.
Related Papers
- → Synthesis of MoS2 nanosheet–graphene nanosheet hybrid materials for stable lithium storage(2013)304 cited
- → Enhanced fast response to Hg0 by adsorption-induced electronic structure evolution of Ti2C nanosheet(2021)42 cited
- → Density functional theory study towards capability of Ga-doped boron nitride nanosheet as a nanocarrier for 3-allyl-2 selenohydantoin anticancer drug delivery(2020)18 cited
- Synthesis of water-soluble polyaniline and its application in corrosion protection(2008)
- Research advancement of polyaniline and its composites(2001)