Abstract
The BiOCl nanosheets with oxygen vacancies are designed and synthesized to boost the photocatalytic performance by a two-step hydrothermal strategy. The optimal BiOCl nanosheets with oxygen vacancies can almost completely degrade RhB in 18 min under visible light irradiation. The improved performance can be ascribed to the introduction of surface oxygen vacancies, which can heighten the light absorption efficiency of BiOCl and improve the separation and transfer efficiency of photo-generated electron-hole pairs. Besides, the superoxide radicals (•O2–) are the main active species which can be demonstrated by the trapping experiments for active species. As expected, our current work can provide a counterpart to further develop the efficient photocatalysts for pollutant degradation.
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