title: Enhanced photocatalytic activities of single-crystalline ZnGa2O4nanoprisms by the coexposed {111} and {110} facets.
abstract: Facet-control has been a fascinating method for preparation of highly active photocatalysts. Herein, we report the hydrothermal preparation of single-crystalline ZnGa2O4nanoprisms with the {111} and {110} facets coexposed. Studies of their photocatalytic performance have revealed that the as-formed nanoprisms exhibit significantly enhanced photocatalytic activities compared with ZnGa2O4nanocubes with only the {100} facets exposed and nanosheets with the {110} facets exposed for H2evolution and contaminant degradation. Theoretical calculations combined with valence band XPS results indicate the formation of a surface heterojunction by the coexposed {111} and {110} facets, which promotes the photogenerated electron and hole migration to the {110} and {111} facets, respectively, and enhances the photocatalytic performance.
authors.affiliation: School of Chemistry & Chemical Engineering, National Engineering Research Center for Colloidal Materials, Shandong University, Jinan 250100, P. R. China. t54wang@sdu.edu.cn cdr@sdu.edu.cn.
authors.forename: Tingting
authors.initials: T
authors.lastname: Zheng
authors.affiliation: School of Chemistry & Chemical Engineering, National Engineering Research Center for Colloidal Materials, Shandong University, Jinan 250100, P. R. China. t54wang@sdu.edu.cn cdr@sdu.edu.cn.
authors.forename: Yuguo
authors.initials: Y
authors.lastname: Xia
authors.affiliation: School of Chemistry & Chemical Engineering, National Engineering Research Center for Colloidal Materials, Shandong University, Jinan 250100, P. R. China. t54wang@sdu.edu.cn cdr@sdu.edu.cn.
authors.forename: Xiuling
authors.initials: X
authors.lastname: Jiao
authors.affiliation: School of Chemistry & Chemical Engineering, National Engineering Research Center for Colloidal Materials, Shandong University, Jinan 250100, P. R. China. t54wang@sdu.edu.cn cdr@sdu.edu.cn.
authors.forename: Ting
authors.identifier: http://orcid.org/0000-0003-1260-121X
authors.initials: T
authors.lastname: Wang
authors.affiliation: School of Chemistry & Chemical Engineering, National Engineering Research Center for Colloidal Materials, Shandong University, Jinan 250100, P. R. China. t54wang@sdu.edu.cn cdr@sdu.edu.cn.
authors.forename: Dairong
authors.initials: D
authors.lastname: Chen