期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 691, 期 -, 页码 369-377出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2016.08.261
关键词
N, S co-doped graphene quantum dots; Graphene; TiO2 nanotubes; Photocatalytic activity
资金
- NSF of China [51472106, 51202017, 51372095]
- NSF of Jilin Province [20140101107JC, 20140101092JC]
N, S co-doped graphene quantum dots (N, S-GQDs) -reduced graphene oxide- (rGO) -TiO2 nanotubes (TiO2NT) composites were prepared by a facile alkaline hydrothermal reaction and physical stirring process. The apparent rate constant of the N, S-GQDs+10% rGO + TiO2NT composite, exhibiting the highest photodegradation efficiency, is 1.8 times and 16.3 times higher than those of 10% rGO + TiO2NT and pure TiO2NT, respectively, for the degradation of methyl orange (MO) under visible light irradiation (lambda> 400 nm). Our work could provide new insights into the fabrication of GQDs-semiconductor composites as high performance photocatalysts and broaden the range of doped GQDs widely used for environmental protection. (C) 2016 Elsevier B.V. All rights reserved.
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