Preparation of Sandwich-Like TiO₂/Graphene/TiO₂ Films and its Application in Photocatalysis

Abstract:

Anatase nano-TiO₂ film was prepared by sol-gel method and graphene oxide nanosheets synthesized by Hummers method were deposited on this TiO₂ thin film. Another nano-TiO₂ film was then deposited on the graphene film forming sandwich-like to avoid graphene layer peeled off. Scanning electron microscope shows that TiO₂ particles layer with a diameter of about 20 nm were densely and uniformly deposited on both surfaces of the graphene layer to form a sandwich-like composite structure. The composite films exhibit excellent photocatalytic degradation to methyl orange and remains chemically stable in the whole process without anything exfoliation.

• Periodical: Advanced Materials Research (Volume 465)
• Pages: 80-85
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.465.80
• Online since: February 2012
• Authors: Hong Peng Wu, Da Wei He, Yong Sheng Wang, Bing Yang Yang, Hai Teng Xu, Jing Feng Li, Hai Teng Wang, Ji Gang Wang, Ming Fu
• Keywords: Composite Film, Graphen, Photocatalysis, Sandwich-Like Structure, TiO₂

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