A simple and sensitive graphene oxide/gold nanoparticle surface plasmon resonance Rayleigh scattering-energy transfer analytical platform for detection of iodide and H2O2

Abstract

Graphene oxide/gold nanoparticle (GO/GN) composites were prepared by citrate reduction that exhibited a strong resonance RS (RRS) peak at 370 nm. When KIO₃ and H₂O₂ were added respectively, they reacted with KI to form I₃⁻ ions that adsorbed on the GO/GN surfaces and the RRS intensity decreased due to the RRS energy of GO/NG being transferred to the receptor I₃⁻ ions. So, a simple and sensitive GO/GN surface plasmon resonance (SPR) Rayleigh scattering (RS)-energy transfer (SPRRS-ET) analytical platform was fabricated and can be utilized to detect trace KIO₃ and H₂O₂.