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

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Abstract

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.

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Gao, L. G., Li, H. X., Song, X. L., Li, W. L., & Ma, X. R. (2019). Degradation of benzothiophene in diesel oil by LaZnAl layered double hydroxide: photocatalytic performance and mechanism. Petroleum Science, 16(1), 173–179. https://doi.org/10.1007/s12182-018-0285-3

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