Spatial Separation of Electrons and Holes among ZnO Polar {0001} and {1010} Facets for Enhanced Photocatalytic Performance.

ABSTRACT: Spatial separation of electrons and holes is critical for improving their photocatalytic performance, which is ascribed to the suppressed photoinduced carriers' recombination among facets. In this work, the ZnO-Au-MnO _x heterogeneous nanostructure photocatalyst was prepared by photodepositing Au and MnO _x on the ZnO polar {0001} and {101̅0} crystal facets, respectively. The photocatalytic performance of ZnO-Au-MnO _x was higher than ZnO and ZnO-Au for the degradation of rhodamine B dye under UV light irradiation. Due to the potential difference between different crystal planes of zinc oxide, electrons and holes will migrate to different crystal planes of zinc oxide. This will lead to the deposition of Au and MnO _x on di

SUBMITTER: Huang M 

PROVIDER: S-EPMC9352223 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature