Enhanced Photocatalytic Activity of BiOBr/ZnO Heterojunction Semiconductors Prepared by Facile Hydrothermal Method

Figure 3

SEM images of pure ZnO at low (a) and high (b) magnification, 50 wt.% BiOBr-ZnO composites at low (c) and high (d) magnification, and pure BiOBr from different direction (e, f).

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