Facile one-pot synthesis of novel hierarchical Bi 2 O 3 /Bi 2 S 3 nanoflower photocatalyst with intrinsic p-n junction for efficient photocatalytic removals of RhB and Cr(VI).

Nanoflower-like Bi2O3/Bi2S3 heterojunctions are successfully fabricated by a one-step hydrothermal method. Bi2O3/Bi2S3 heterojunctions can be used as a high efficient and recyclable catalyst for the photocatalytic removals of Rhodamine B and Cr(VI).