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Fabrication of regular ZnO/TiO2 heterojunctions with enhanced photocatalytic properties
1Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science & Technology, 130 Meilong Road, Shanghai, 200237, PR China.
Abstract:
Facet-selective growth: Regular ZnO/TiO2 heterojunctions have been successfully synthesized using a facile hydrothermal technique (see figure). Due to the interfacial lattice matching, wurtzite ZnO can only grow on the eight {101} facets of the anatase TiO2 single crystals, while the other two {001} facets are untouched. The as-prepared regular ZnO/TiO2 heterojunctions exhibited enhanced photocatalytic generation of (·)OH radicals and enhanced photodegradation of methyl orange when irradiated with UV light.
