One-Step Solvothermal Synthesis of BiPO4/Bi2MoO6 Heterostructure with Oxygen Vacancies and Z-Scheme System for Enhanced Photocatalytic Performance

摘要

The construction of heterojunction between semiconductor is an effective technology to enhance its photocatalytic activity using solar energy. In this paper, a series of BiPO4/Bi2MoO6 heterostructures with different mole ratio of Mo:P were successfully synthesized via one-pot solvothermal method. Photocatalytic activity of all samples were investigated by degrading methylene blue (MB) under visible light. Among the catalysts, BMoP-1-3 sample with oxygen vacancy has excellent photocatalytic activity due to improving its light harvesting and charge separation by establishment of Z-scheme system heterostructure, which is 1.65 and 1.22 times that of pure BiPO4 and Bi2MoO6, respectively.