ZnO nanorod arrays grown on g-C3N4 micro-sheets for enhanced visible light photocatalytic H2 evolution
Autor: | Hengfei Qin, Wang Wenlong, Lifeng Cui, Jutao Jin, Yuanhui Zuo, Youlong Xu, Haifeng Dang |
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Rok vydání: | 2019 |
Předmět: |
Materials science
Aqueous solution General Chemical Engineering Graphitic carbon nitride Heterojunction Nanotechnology 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Effective nuclear charge 0104 chemical sciences chemistry.chemical_compound chemistry Specific surface area Photocatalysis Water splitting Nanorod 0210 nano-technology |
Zdroj: | RSC Advances. 9:24483-24488 |
ISSN: | 2046-2069 |
Popis: | The designed synthesis of noble-metal-free photocatalysts with hierarchical heteroassemblies in a facile, mild and eco-friendly way becomes more and more important, because we can explore the novel properties and applications of novel heterostructures via this method. Herein we report a two-step aqueous strategy for novel hierarchical heterostructures of ZnO nanorod (NR) arrays grown on graphitic carbon nitride (g-C3N4). The novel g-C3N4/ZnO NR heterostructures that integrate g-C3N4 and ZnO NR via high-quality g-C3N4–ZnO heterojunctions have beneficial properties such as high specific surface area (SSA), open spatial architecture, good electronic conductivity, and effective charge transfer interfaces, and are promising in many related areas such as water splitting, solar cells, etc. As a noble-metal-free and visible-light-responsive photocatalytic material, a typical g-C3N4/ZnO NR photocatalytic system exhibits enhanced photocatalytic activity toward H2 evolution, almost 3.5 times higher than that of pure g-C3N4. The superior photocatalytic property can be ascribed to the synergistic effect of the unique g-C3N4/ZnO NR heterostructures. |
Databáze: | OpenAIRE |
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