Title :

Hydrothermal preparation of MoS₂/TiO₂/Si nanowires composite with enhanced photocatalytic performance under visible light

Author(s) :

Hamdi, A. [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Boussekey, L. [Auteur]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement - UMR 8516 [LASIRE]
Roussel, Pascal [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Addad, A. [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Ezzaouia, H. [Auteur]
Boukherroub, Rabah [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Coffinier, Yannick [Auteur correspondant]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]

Journal title :

MATERIALS & DESIGN

Pages :

634 - 643

Publisher :

Elsevier

Publication date :

2016

ISSN :

0261-3069

English keyword(s) :

Hydrothermal method
Metal-assisted chemical etching
MoS2
Photocatalysis
Silicon nanowires

HAL domain(s) :

Chimie/Chimie théorique et/ou physique

English abstract : [en]

In this paper, we report on a simple, low cost and environmentally friendly method for the synthesis of 3D hierarchical molybdenum disulfide (MoS₂) nano-sheets on TiO₂ coated Si nanowires (SiNW). The ...
Show more >In this paper, we report on a simple, low cost and environmentally friendly method for the synthesis of 3D hierarchical molybdenum disulfide (MoS₂) nano-sheets on TiO₂ coated Si nanowires (SiNW). The synthetic method has several advantages such as low temperature, short reaction time and does not require any additives or surfactants. Characterization of the obtained composite material was performed by using scanning electron microscopy (SEM), Raman spectroscopy, energy-dispersive X-ray spectroscopy (EDX), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD) patterns and high resolution transmission electron microscopy (HR-TEM). The photocatalytic activity of the as-prepared MoS₂ nanosheets was investigated for the degradation of Rhodamine B (RhB) under visible light irradiation. We found that MoS₂/TiO₂/SiNW interface exhibited stable and good catalytic activity as compared to other MoS₂-based photocatalytic materials. The photocatalytic mechanism is believed to occur through photocatalytic and photosensitization processes.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Collections :

• Institut d'Électronique, de Microélectronique et de Nanotechnologie (IEMN) - UMR 8520

Source :

Harvested from HAL