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Abstract

Graphene has attracted studies because of its superior properties and potential applications. In this research, we aimed to implement a friendly environmental method to produce TiO2/graphene composite by using photo-catalyst materials – TiO2 nanotubes – to reduce graphene oxide. The TiO2 nanotubes was synthesized by alkaline hydrothermal treatment method, and have the surface area (BET) of 418,3 m2/g, and diameter of 8-10 nm. Graphene oxide with 2- 5 graphene layers was produced by Hummers method. The mixture of GO and TiO2 in water, with the ratio mTiO2/mGO = 1/1, was irradiated under an UVC-20W light during different time (1, 3, 5, 7, and 9 h). The reduction of GO to graphene was investigated by semi-quantitative infrared spectroscopy and electrical conductivity. Results showed that the reduction of GO reached to the maximum after 5 hours; and the electrical conductivity of the TiO2/ graphene composite was 0,13 S.cm-1.



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Article Details

Issue: Vol 18 No 2 (2015)
Page No.: 228-236
Published: Jun 30, 2015
Section: Natural Sciences - Research article
DOI: https://doi.org/10.32508/stdj.v18i2.1188

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Creative Commons License

Copyright: The Authors. This is an open access article distributed under the terms of the Creative Commons Attribution License CC-BY 4.0., which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 How to Cite
Nguyen, S., Duong, T., Nguyen, P., & Le, N. (2015). Reduction of graphene oxide by TiO2 nanotubes photocatalyst. Science and Technology Development Journal, 18(2), 228-236. https://doi.org/https://doi.org/10.32508/stdj.v18i2.1188

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