期刊
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A
卷 88, 期 3, 页码 478-483出版社
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S0036024414030303
关键词
nanocomposite; TiO2; P25; graphene; photocatalysis
资金
- National Natural Science Foundation of China [21176199]
- Research Fund for the Doctoral Program of Higher Education [20096101110013]
- Natural Science Foundation of Shaanxi Province [2010JZ002]
TiO2 (P25)/graphene nanocomposite photocatalyst have been successfully synthesized with P25 and different ratios of graphene oxide through a green and facile one-step microwave-assisted method. Graphene oxide was restored to graphene sheets and P25 was coated on it simultaneously during the reaction. The method offers easy access to the semiconductor/graphene nanocomposites with a uniform coating and strong interactions between semiconductor and the underlying graphene sheets. The prepared P25/graphene nanocrystals hybrid has superior photocatalytic activity in the degradation of methylene blue, showing an impressive photocatalytic enhancement over P25. The improved photocatalytic activities may be attributed to increased adsorptivity of dyes, extended light absorption range, and efficient charge separation properties of a two-dimensional graphene network.
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