Reduced Graphene Oxide/TiO2 Nanocomposite: From Synthesis to Characterization for Efficient Visible Light Photocatalytic Applications

Catalysts

ChiaraAnna D’Amato¹  Stefano Ferraro¹  Elena Rommozzi¹  Rita Giovannetti¹  Marco Zannotti¹  Andrea Di Cicco²  Marco Minicucci²  Roberto Gunnella² 

[1] School of Science and Technology, Chemistry Division, University of Camerino, Via S. Agostino 1, 62032 Camerino, Italy;School of Science and Technology, Physics Division, University of Camerino, Via Madonna delle Carceri 9, 62032 Camerino, Italy;

关键词: reduced graphene oxide;    glucose-NH₄OH;    TiO₂;    visible light photocatalysis;    wastewater treatment;   

DOI  :  10.3390/catal8120598

来源: DOAJ

【 摘 要 】

In this study, a green and facile thermal reduction of graphene oxide using an eco-friendly system of d-(+)-glucose and NH₄OH for the preparation of reduced graphene oxide was described. The obtained reduced graphene oxide dispersion was characterized by SEM, Dynamic Light Scattering, Raman and X-Ray Photoelectron Spectroscopy. TiO₂ nanoparticles and reduced graphene oxide nanocomposites were successively prepared and used in the preparation of heterogeneous photocatalysts that were characterized by Atomic Force Microscopy and Photoluminescence Spectroscopy and subsequently tested as visible light photocatalysts for the photodegradation of Alizarin Red S in water as target pollutant. Obtained results of photocatalytic tests regarding the visible light photocatalytic degradation of Alizarin Red S demonstrated that the use of reduced graphene oxide in combination with TiO₂ led to a significant improvement for both adsorption of Alizarin Red S on the catalyst surface and photodegradation efficiencies when compared to those obtained with not doped TiO₂.

【 授权许可】

Unknown