Journal
APPLIED SURFACE SCIENCE
Volume 364, Issue -, Pages 589-596Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2015.12.196
Keywords
Attapulgite; MoS2; CeO2; Photocatalytic oxidation; Desulfurization
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Funding
- National Natural Science Foundation of China [51002016]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
- Jiangsu Key Laboratory for Environment Functional Materials [SJHG1401]
- Jiangsu Technology Support Program [BE2014100, BE2015103]
- Jiangsu International Cooperation Project [BZ2015040]
- Huai'an International Cooperation Project [HAC2014014]
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Novel attapulgite(ATP)-CeO2/MoS2 ternary nanocomposites were synthesized by microwave assisted assembly method. The structures of the nanocomposites were characterized by XRD, FT-IR, UV-vis, XPS and in situ TEM. The photocatalytic activities of ATP-CeO2/MoS2 composites were investigated by degradating dibenzothiophene (DBT) in gasoline under visible light irradiation. The effect of the mass ratio of CeO2 to MoS2 on photocatalytic activity was investigated. The results indicate that the three-dimensional network structure is firmly constructed by ATP skeleton, CeO2 particles and MoS2 nanosheet which effectively increase the surface area of the composites and promote the separation of electrons and holes by resulting electronic transmission channels of multi-channel in space. The degradation rate of DBT can reach 95% under 3 h irradiation when the mass ratio of CeO2/MoS2 is 4/10. A plausible mechanism for the photocatalytic oxidative desulfurization of this nanocomposite is put forward. (C) 2015 Elsevier B.V. All rights reserved.
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