One-pot synthesis of Bi2S3/S-doped BiOCl grown on nickel foam for highly efficient photocatalytic degradation of norfloxacin

Abstract

Improving the photogenerated charge transfer efficiency and visible light utilization of photocatalysts is an urgent issue in current research on the photocatalytic degradation of antibiotics. In this paper, a stacked composite structure assembled from overlapping 1D Bi₂S₃ nanorods and 2D S-doped BiOCl nanosheets was constructed by a simple one-pot hydrothermal method. Besides, the loaded photocatalysts with high cycling stability and easy recyclability was produced based on nickel foam, which exhibited a photocatalytic degradation efficiency of 99 % for norfloxacin (NOR) in 60 min under visible light and a retention efficiency above 90 % after 8 cycles. According to the interaction of different components in photocatalytic system, it was confirmed that the molecular modification effect generated by the adsorption of pollutants was beneficial for improving removal efficiency. This study provided a facile strategy for the synthesis of nickel foam-loaded BiOCl-based composites with high-efficiency photocatalytic performance by combining the merits of non-metal doping and heterostructure building.