期刊
BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN
卷 86, 期 9, 页码 1065-1070出版社
CHEMICAL SOC JAPAN
DOI: 10.1246/bcsj.20130093
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- JST, CREST
Graphene (oxide)/TiO2 composite materials have attracted widespread attention because of their scientific and technological importance as, for example, photocatalysts or electronic materials. These composites are usually prepared using high-temperature and/or slow synthetic procedures such as the hydrothermal method. Here, we demonstrate a low-temperature and relatively rapid synthesis of a graphene oxide/TiO2 composite. Graphene oxide sheets decorated with anatase TiO2 nanoparticles are successfully obtained by refluxing graphene oxide sheets dispersed in an aqueous TiOSO4 ethanol solution at 80 degrees C for 2 h. The graphene oxide is reduced during photocatalytic reduction of the TiO2 deposited on the surface of the graphene oxide. The reduced graphene mdde/TiO2 composite shows very high photocatalytic activity as compared with pure TiO2 and nonreduced graphene oxide/TiO2.
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