期刊
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
卷 114, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.mssp.2020.105086
关键词
Bismuth oxychloride; Reactive orange 84; Wastewater treatment; Photocatalysts
类别
资金
- University of Guanajuato (UG) [269/2018, 252/2020]
- Mexican Council for Science and Technology (CONACyT) [448004]
Hierarchical microspherical-like BiOCl structure was synthesized by solvothermal method. The BiOCl was characterized by different techniques, such as: X-ray diffraction (XRD), scanning electron microscopy-energy dispersive X-ray spectroscopy (SEM-EDS), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), UV-vis diffuse reflectance spectroscopy (DRS) and photoluminescence spectroscopy (PL); as well, the pore distribution and the surface area were determined by BET method. It was found that the conditions of synthesis employed in this work allow to obtain of microspherical-like BiOCl structure with abundant oxygen vacancies. The vacancies of the oxygen promote the photoactivity of BiOCl under sunlight. Also, the photocatalytic mechanism under sunlight was studied by trapping experiments of reactive species, where it was showed that the holes (h+) and superoxide (O-2(center dot-)) are the main active species in the degradation of RO84 and ACT. As a result, microspherical-like BiOCl structure, is an exceptional photocatalyst in degradation of the RO84 and ACT under sunlight.
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