期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 2, 期 10, 页码 3605-3612出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ta14718e
关键词
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资金
- National Natural Science Foundation of China [NSFC 21271053, 21001035, 51272050, 51072038]
- Research Fund for the Doctoral Program of Higher Education of China [20112304110021]
- Natural Science Foundation of Heilongjiang Province [LC2012C10]
- Program for New Century Excellent Talents in University
- Harbin Sci.-Tech. Innovation Foundation [RC2012XK017012]
- Fundamental Research Funds for the Central Universities of China
In this study, TiO2 hollow microspheres with high photocatalytic activity were prepared by simply optimizing the ratio of the as-used templates (poly(4-styrenesulfonate) (PSS) and triblock copolymer P123). In particular, a novel three-dimensional (3D) reduced graphene oxide/TiO2 (rGO/TiO2) hybrid composite was for the first time prepared by wrapping TiO2 hollow microspheres with rGO sheets via a facile solvothermal route using poly(L-lysine) (PLL) and ethylene glycol (EG) as coupling agents. The structural, morphological and photocatalytic properties of the as-synthesized products were examined. It is found that rGO/TiO2 hybrid composite exhibits markedly enhanced photocatalytic performance in comparison with pure TiO2 hollow microspheres and the simple mixture of rGO and TiO2 spheres. The rational design, interesting structure and ideal photocatalytic performance of this graphene-based composite show great promise in diverse fields.
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