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

A polymer-assisted facile synthesis strategy for the polymorph-controlled α-Bi 2 O 3 /Bi 2 O 2 CO 3 heterojunction effectively improves the degradation efficiency of tetracycline (TC) and Rhodamine B (RhB) under visible light.