Novel camellia-structured Z-scheme BiOBr/g-C 3 N 4 /Bi 2 O 2 CO 3 was simply prepared by a hydrothermal method and photodegraded Rhodamine B under visible light within 60 min with much higher degradation e ciency (98%) contrasted with pure BiOBr, g-C 3 N 4 and Bi 2 O 2 CO 3 . Radical trapping experiments exhibited the main reactive species (•O 2 -) during degradation process. The formation of Z-scheme heterojunction improved rate of charge separation, enhanced absorption of visible light and thus promoted the photocatalytic activity. The Z-scheme heterojunction is a promising material for the removal of dye in e uents.
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