Hierarchical p-n heterostructure BiOI@ZnTi-LDH for Cr(VI) reduction under visible light

• Published in: Journal of alloys and compounds Vol. 833; p. 154898
• Main Authors: Xiong, Jie, Zeng, Hong-Yan, Chen, Chao-Rong, Xiao, Gao-Fei, An, De-Shun
• Format: Journal Article
• Language: English
• Published: Lausanne Elsevier B.V 25.08.2020; Elsevier BV
• Subjects: BiOI; Catalytic activity; Charge transfer; Core-shell structure; Cr(VI) photoreduction; Heterojunctions; Heterostructures; Hexavalent chromium; Hierarchical core-shell structure; Light irradiation; Microspheres; Morphology; P-N heterostructure; P-n junctions; Photocatalysis; Photoelectricity; Reduction; Self-assembly; Structural hierarchy; Surface properties; Zn/Ti hydrotalcites; Cr(VI) photoreduction; Zn/Ti hydrotalcites; Hierarchical core-shell structure; BiOI; P-N heterostructure

The hierarchically core-shell BiOI@Zn/Ti hydrotalcite (LDH) composites with p-n heterostructure was successfully prepared by layer-by-layer self-assembly using a facile hydrothermal method, where the ZnTi-LDH nanoplatelets were coated on the BiOI core to form the flower-like BiOI@ZnTi-LDH microspher...