Abstract
A series of ZnFe2O4/BiOCl composites with different microstructures were fabricated by hydrothermal method through tuning the content of oleylamine. The morphologies, crystal, and the optical absorption were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), and ultraviolet–visible (UV–Vis) diffuse reflectance spectroscopy. The SEM imagines and XRD diffractograms indicated that the content of oleylamine plays a key role in morphologies and controlling the growth plane of the prepared BiOCl. The photocatalytic activity of the prepared samples was estimated through reduction of CO2 in cyclohexanol under UV–Vis light irradiation. And cyclohexyl formate was produced by the esterification reaction between the reduction product of formic acid and cyclohexanol. Meanwhile, cyclohexanol was oxidized to cyclohexanone. The ZnFe2O4/BiOCl composites displayed higher photocatalytic activities than pristine BiOCl samples. The flower-like ZnFe2O4/BiOCl microspheres with the oleylamine content of 0.2% showed the highest photocatalytic activity. This was attributed to the ZnFe2O4/BiOCl microspheres with flower-like structure and highly exposed (001) facet, which has higher light-harvesting capacity.
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Acknowledgements
This work was financially supported by the National Natural Science Foundation of China (NSFC) Grant No. 21176192, the Natural Science projects of Shaanxi Polytechnic Institue (2021YKYB-056).
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Song, G., Wu, X. Flower-Like ZnFe2O4/BiOCl Microspheres with Highly Exposed (001) Facet for Photocatalytic Reduction of CO2 in Cyclohexanol. Catal Lett 153, 637–642 (2023). https://doi.org/10.1007/s10562-022-04031-1
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DOI: https://doi.org/10.1007/s10562-022-04031-1