Development of Bi2W1-xMoxO6/Montmorillonite nanocomposite as efficient catalyst for photocatalytic desulfurization

JOURNAL OF ALLOYS AND COMPOUNDS

卷:709

Article

Li, Xiazhang^1,2,3  Li, Feihong¹  Lu, Xiaowang¹  Zuo, Shixiang¹  Yao, Chao^1,2  Ni, Chaoying³ 

[1] Changzhou Univ, Sch Petrochem Engn, Jiangsu Key Lab Adv Catalyt Mat & Technol, Changzhou 213164, Peoples R China

[2] Changzhou Univ, Ctr Xuyi Attapulgite R&D, Huaian 211700, Peoples R China

[3] Univ Delaware, Dept Mat Sci & Engn, Newark, DE 19716 USA

关键词: Clay;    Bi2WO6;    Heterostructure;    Nanocomposite;    Photocatalysis;    Desulfurization;   

DOI  :  10.1016/j.jallcom.2017.03.167

来源: Elsevier

【 摘 要 】

A novel Bi2W1-xMoxO6/Montmorillonite (MMT) nanocomposite was prepared by one-pot hydrothermal method. XRD, TEM, Raman, UV-vis, FT-IR, PL and XPS were employed to characterize the nano composites. The photocatalytic desulfurization properties of Bi2W1-xMoxO6/MMT nanocomposites were performed by oxidizing dibenzothiophene (DBT) in the model oil under visible light irradiation. Results indicate that the molar fraction of Mo doping has critical impact on the desulfurization rate. Adequate Mo doping may form well-defined solid solution/co-precipitation heterostructure of Bi2W1-xMoxO6/ Bi2MoO6, which enhances the visible light absorption efficiency and promotes the separation rate of photogenerated electron-hole pairs, thus leads to the improved photocatalytic desulfurization performance. The desulfurization rate of the model oil can reach 95% when the molar fraction x is 0.7 under visible light irradiation for 3 h. (C) 2017 Published by Elsevier B.V.

【 授权许可】

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