Construction of a three-dimensional flower-like Bi 2 S 3 /BiOCl S-scheme heterojunction and its efficient photocatalytic degradation of ciprofloxacin

A Bi 2 S 3 /BiOCl S-scheme heterojunction was constructed via co-precipitation and ion exchange. The intimate interfacial contact and built-in electric field facilitate the separation of photogenerated carriers while preserving strong redox capability.