Hierarchical-metal–organic framework-templated Cu0.5Zn0.5In2S4-rGO-g-C3N4: flexible synthesis and enhanced photocatalytic activity
| Autor: | Ling-Wang Liu, Kai Wang, Feng-Ming Zhang, Kui Li, Xin Cheng, Mei-Ling Xu, Yi-Chuan Dou |
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| Rok vydání: | 2020 |
| Předmět: |
Fabrication
Materials science Hydrogen Renewable Energy Sustainability and the Environment Ligand chemistry.chemical_element Heterojunction 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Nanocrystal chemistry Chemical engineering Photocatalysis General Materials Science Metal-organic framework Charge carrier 0210 nano-technology |
| Zdroj: | Journal of Materials Chemistry A. 8:22124-22133 |
| ISSN: | 2050-7496 2050-7488 |
| DOI: | 10.1039/d0ta07449g |
| Popis: | MOF-templated sulfides exhibit abundant active sites and excellent photo/electrocatalytic activity, while the types of sulfides derived from the single-ligand-MOF are limited due to the poor structure coordination between the required metals and a given single ligand. Herein, uniform-element-distributed hierarchical-MOFs (HMOFs) have been prepared using dual ligands, and were adopted for the fabrication of uniform quaternary hollow Cu0.5Zn0.5In2S4 nanocrystals. The uniform insertion of g-C3N4 and g-C3N4-rGO into the skeleton of the hollow Cu0.5Zn0.5In2S4 improved the photocatalytic hydrogen activity by 3.3 and 5.6 times in comparison with that of the optimal hollow Cu0.5Zn0.5In2S4, due to the improved separation and transport efficiency of charge carriers. Notably, even in pure water, the hollow Cu0.5Zn0.5In2S4 and its heterostructures exhibited considerable H2 and H2O2 production activity. This work provides insight into the design and flexible synthesis of various MOF-templated nanocrystals for energy conversion and storage. |
| Databáze: | OpenAIRE |
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