Visible-light driven p-n heterojunction formed between α-Bi₂O₃ and Bi₂O₂CO₃ for efficient photocatalytic degradation of tetracycline.

ABSTRACT: To improve the efficiency of photocatalytic oxidative degradation of antibiotic pollutants, it is essential to develop an efficient and stable photocatalyst. In this study, a polymer-assisted facile synthesis strategy is proposed for the polymorph-controlled α-Bi₂O₃/Bi₂O₂CO₃ heterojunction retained at elevated calcination temperatures. The p-n heterojunction can effectively separate and migrate electron-hole pairs, which improves visible-light-driven photocatalytic degradation from tetracycline (TC). The BO-400@PAN-140 photocatalyst achieves the highest pollutant removal efficiency of 98.21% for photocatalytic tetracycline degradation in 1 h (λ > 420 nm), and the degradation efficiency was maintained above 95% after 5 cycles. Th

SUBMITTER: Zhu B 

PROVIDER: S-EPMC9827591 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature