Fig. 11

Schematic illustration of the possible electron–hole pair separation and photocatalytic mechanism of the α-Bi2O3@g-C3N4 composite (a) Type II heterojunction; (b) Z-scheme heterojunction
Schematic illustration of the possible electron–hole pair separation and photocatalytic mechanism of the α-Bi2O3@g-C3N4 composite (a) Type II heterojunction; (b) Z-scheme heterojunction