Abstract
AbstractHerein, we report a novel narrow band gap sulfur quantum dots (SQDs)‐modified BiOCl heterojunction (BOC/SQDs) for the photo‐degradation of hazardous organic pollutants via rhodamine B (RhB)‐sensitization. Such a high photocatalytic activity of RhB‐sensitized BOC/SQDs heterojunction derives not only from the improved visible‐light response capacity, high surface area/pore volume, suitable band structure for efficient electron transfer, but also from the surge of the number of electrons via RhB‐sensitization for reactive oxygen species (ROS) generation. Superoxide radicals (⋅O2−), holes (h+), and hydrogen peroxide (H2O2) play the important roles in the photo‐degradation. A possible mechanism for RhB‐sensitization enhanced degradation performance for treating organic pollutants by BOC/SQDs is proposed. The combination of dye‐sensitization with BOC/SQDs heterojunction can explore a greener, energy saving, and efficient photo‐induced nanoplatform for treating organic pollutants in aqueous media.
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