期刊
SYNTHETIC METALS
卷 231, 期 -, 页码 51-57出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.synthmet.2017.06.020
关键词
Nanocomposites; S-doped TiO2; Three dimensional graphene aerogels; Photocatalyst
资金
- National Natural Science Foundation of China [41371446]
- Changzhou high-tech Key Laboratory [CM20153001]
- Natural Science Foundation of Jiangsu Province [BK20140264]
- Advanced Catalysis and Green Manufacturing Collaborative Innovation Center [ACGM2016-06-27]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
Sulfur-doped titanium dioxide (S-TiO2) was hydrothermally synthesized using thiourea as the sulfur source, and then it was successfully integrated to the three-dimensional graphene aerogels (3DGA). The obtained nano composites of S-TiO2 and 3DGA (S-TiO2-3DGA) were characterized by XRD, SEM, TEM, XPS and UV-vis diffuse reflectance spectroscopy. When the nanocomposites were applied for the photodegradation of methyl orange (MO), the photocatalytic activity of TiO2 was significantly improved by doping of S and integration with 3DGA, which might be due to the narrowed bandgap of S-TiO2 and the good conductive ability and 3D structure of 3DGA. More importantly, the hydrophobic property of 3DGA makes it easy to separate the S-TiO2-3DGA from the water phase, resulting in excellent recyclability and high stability of the photocatalyst.
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