Synthesis of hybrid Au–ZnO nanoparticles using a one pot polyol process

Amine Mezni (1) , Adnen Mlayah (2) , Virginie Serin (3) , Leila Samia Smiri (1)

1 Faculté des Sciences de Bizerte [Université de Carthage]
2 CEMES-NeO - Nano-Optique et Nanomatériaux pour l'optique
3 CEMES-M3 - Matériaux Multi-fonctionnels et Multi-échelles

In this work, we report on the synthesis of hybrid Au-ZnO nanoparticles using a one-pot chemical method that makes use of 1,3-propanediol as a solvent, a reducing agent and a stabilizing layer. The produced nanoparticles consisted of Au cores decorated with ZnO nanoparticles. The structure and morphology of the nanoparticles were characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), energy dispersive X-ray spectrometry (EDX) and Raman spectroscopy. Optical extinction measurements, combined with numerical simulations, showed that the Au-ZnO nanoparticles exhibit a localized surface plasmon resonance (SPR) clearly red-shifted with respect to that of bare Au nanoparticles (AuNPs). This work contributes to the emergence of multi-functional nanomaterials with possible applications in surface plasmon resonance based biosensors, energy-conversion devices, and in water-splitting hydrogen production.

Mots clés: Composite materials; Hydrogen production; Metal nanoparticles; Nanostructures; Optical properties; Plasmons; Surface plasmon resonance; Synthesis (chemical); Transmission electron microscopy; X ray diffraction; 1; 3 propanediol; Energy dispersive X-ray spectrometry; Localized surface plasmon resonance; Optical extinction; Raman spectroscopy and scattering; Stabilizing layers; Structure and morphology; ZnO nanoparticles; Gold

Domaines: Science des matériaux [cond-mat.mtrl-sci]

Amine Mezni, Adnen Mlayah, Virginie Serin, Leila Samia Smiri. Synthesis of hybrid Au–ZnO nanoparticles using a one pot polyol process. Materials Chemistry and Physics, 2014, 147 (3), pp.496-503. ⟨10.1016/j.matchemphys.2014.05.022⟩. ⟨hal-01988704⟩