Degradation of benzothiophene in diesel oil by LaZnAl layered double hydroxide: photocatalytic performance and mechanism

Petroleum Science

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[1] 0000 0001 0662 3178, grid.12527.33, Department of Chemistry, Tsinghua University, 100084, Beijing, China;0000 0004 1766 8090, grid.460148.f, School of Chemistry and Chemical Engineering, Yulin University, 719000, Yulin, Shaanxi, China;

关键词: LDH;    Homogeneous precipitation;    Photocatalytic activities;    Catalytic oxidation mechanism;   

DOI  :  10.1007/s12182-018-0285-3

来源: publisher

【 摘 要 】

A new type of photocatalytic La3+–Zn2+–Al3+–MoO42− layered double hydroxide (LDH) material (molar ratio, La/Zn/Al = 1:7:2) was prepared by a complexing agent-assisted homogeneous precipitation technique. The structure of the prepared LDH material was systematically studied. Under UV irradiation, the desulfurization efficiency of the LDH material was 87% in 2 h. For La3+–Zn2+–Al3+–MoO42− LDH material, the introduction of MoO42− increased the interlayer space for promoting the adsorption of benzothiophene (BT), and MoO42− might provide active sites for the oxidation of BT, resulting in the high desulfurization efficiency.

【 授权许可】

CC BY