Photocatalytic Degradation of Methylene Blue in Presence of Graphene Oxide/TiO2 Nanocomposites 


Vol. 35,  No. 9, pp. 2660-2664, Sep.  2014
10.5012/bkcs.2014.35.9.2660


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  Abstract

A simple method of depositing titanium dioxide (TiO2) nanoparticles onto graphene oxide (GO) as a catalytic support was devised for photocatalytic degradation of methylene blue (MB). Thiol groups were utilized as linkers to secure the TiO2 nanoparticles. The resultant GO-supported TiO2 (GO-TiO2) sample was characterized by transmission electron microscopy (TEM), near-edge X-ray absorption fine structure (NEXAFS), and X-ray photoelectron spectroscopy (XPS) measurements, revealing that the anatase TiO2 nanoparticles had effectively anchored to the GO surface. In the photodegradation of MB, GO-TiO2 exhibited remarkably enhanced photocatalytic efficiency compared with thiolated GO and pure TiO2 nanoparticles. Moreover, after five-cycle photodegradation experiment, no obvious deactivation was observed. The overall results showed that thiolated GO provides a good support substrate and, thereby, enhances the photodegradation effectiveness of the composite photocatalyst.

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  Cite this article

[IEEE Style]

S. P. Kim and H. C. Choi, "Photocatalytic Degradation of Methylene Blue in Presence of Graphene Oxide/TiO2 Nanocomposites," Bulletin of the Korean Chemical Society, vol. 35, no. 9, pp. 2660-2664, 2014. DOI: 10.5012/bkcs.2014.35.9.2660.

[ACM Style]

Sung Phil Kim and Hyun Chul Choi. 2014. Photocatalytic Degradation of Methylene Blue in Presence of Graphene Oxide/TiO2 Nanocomposites. Bulletin of the Korean Chemical Society, 35, 9, (2014), 2660-2664. DOI: 10.5012/bkcs.2014.35.9.2660.

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ISSN(Print) 0253-2964
ISSN(Online) 1229-5949