Nano Archive

A facile one-step synthesis of TiO2/graphene composites for photodegradation of methyl orange

Zhang, Haijiao and Xu, Panpan and Du, Guidong and Chen, Zhiwen and Oh, Kokyo and Pan, Dengyu and Jiao, Zheng (2011) A facile one-step synthesis of TiO2/graphene composites for photodegradation of methyl orange. Nano Research, 4 (3). pp. 274-283.

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Official URL: http://www.springerlink.com/content/v0105678161j03...

Abstract

TiO2/graphene composite photocatalysts have been prepared by a simple liquid phase deposition method using titanium tetrafluoride and electron beam (EB) irradiation-pretreated graphene as the raw materials. The products were characterized by X-ray diffraction, transmission electron microscopy, X-ray photoelectron spectroscopy, and thermogravimetric analysis. The effects of varying the synthesis parameters such as graphene content, concentration of titanium tetrafluoride solution and irradiation dose were investigated. It was found that the preparation conditions had a significant effect on the structure and properties of the final products. The irradiated graphene was covered with petal-like anatase TiO2 nanoparticles, which were more uniform and smaller in size than those in products synthesized without EB irradiation-pretreated graphene. The photocatalytic activities of the products were evaluated using the photocatalytic degradation of methyl orange as a probe reaction. The results showed that the products synthesized using EB irradiation-pretreated graphene exhibited higher photocatalytic activities than those using graphene without EB irradiation pretreatment.

Item Type:Article
Subjects:Physical Science > Nanophysics
Physical Science > Nano objects
Material Science > Nanochemistry
Material Science > Nanostructured materials
Divisions:Faculty of Engineering, Science and Mathematics > School of Physics
Faculty of Engineering, Science and Mathematics > School of Chemistry
ID Code:10651
Deposited By:JNCASR
Deposited On:19 Mar 2011 06:19
Last Modified:19 Mar 2011 06:19

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