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HomeSolid State PhenomenaSolid State Phenomena Vol. 280Photocatalytic Properties and Graphene Oxide...

Photocatalytic Properties and Graphene Oxide Additional Effects in TiO₂

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Abstract:

Photocatalytic activity in TiO₂ attract great attention because it promising application in contaminations on degradation and energy conversation. However there is a need on TiO₂ band gap modification to be equivalent with the visible light. Thus, inviting several method of addition certain elements including in this study, the additional of graphene oxide (GO) was investigated. GO were prepared by Hummer method before it was added into TiO₂. The formation of GO from it graphite precursor had been confirmed by Raman spectroscopy. The existence of D-band at wavelength of 1328 cm^-1 and G-band at 1573 cm^-1 shows the formation of GO. The GO was then added in different concentration; 0.0 - 1.0 wt% into TiO₂. The photocatalytic activity was determined using calculating the photodegradation efficiencies of methylene blue under UV light irradiation. The experimental results showed that the photodegradation of MB were increased with higher dopants concentration due to reduction of band gap energy of TiO₂ from 3.2 eV to 3.0 eV for 1.0 wt% GO-with the photodegradation efficiency of GO doped TiO₂ was 61.38%.

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Periodical:

Solid State Phenomena (Volume 280)

Pages:

65-70

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.280.65

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Online since:

August 2018

Authors:

N.A. Mohd Noor*, S.K. Kamarudin, M. Darus, Nur Farhana Mohd Yunos, Muhammad Asri Idris

Keywords:

Graphene Oxide, Photocatalytic, Titanium Dioxide

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© 2018 Trans Tech Publications Ltd. All Rights Reserved

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