Coupling of BiOCl Ultrathin Nanosheets with Carbon Quantum Dots for Enhanced Photocatalytic Performance

Over the past few decades, photocatalysis technology has received extensive attention because of its potential to mitigate or solve energy and environmental pollution problems.Designing novel materials with outstanding photocatalytic activities has become a research hotspot in this field. In this study, we prepared a series of photocatalysts in which BiOCl nanosheets were modified with carbon quantum dots (CQDs) to form CQDs/BiOCl composites by using a simple solvothermal method. The photocatalytic performance of the resulting CQDs/BiOCl composite photocatalysts was assessed by rhodamine B and tetracycline degradation under visible-light irradiation. Compared with bare BiOCl, the photocatalytic activity of the CQDs/BiOCl composites was significantly enhanced, and the 5 wt