Details

Autor(en) / Beteiligte

• Li, Xiazhang
• Zhang, Zuosong
• Yao, Chao
• Lu, Xiaowang
• Zhao, Xiaobing
• Ni, Chaoying

Titel

Attapulgite-CeO2/MoS2 ternary nanocomposite for photocatalytic oxidative desulfurization

Ist Teil von

• Applied surface science, 2016-02, Vol.364, p.589-596

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

2016

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• •Novel attapulgite(ATP)-CeO2/MoS2 ternary nanocomposites were fabricated.•ATP possessed outstanding adsorption property and enhanced the stability of the network structure.•CeO2/MoS2 couples facilitated the separation of photo-induced electrons and holes.•Mass ratio of CeO2/MoS2 influenced the photocatalytic oxidation desulfurization. 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 3h 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.