Stable Zinc-Based Metal-Organic Framework Photocatalyst for Effective Visible-Light-Driven Hydrogen Production
Herein, a new Zn-MOF material, [Zn(<b>L1</b>)(<b>L2</b>)], <b>1</b>, was built successfully through a one-pot solvothermal method. The 3D MOF structure was determined by Single X-ray diffraction analysis, IR, and elemental analysis. A series of PXRD tests of <b...
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| Format: | Article |
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MDPI AG
2022-03-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/27/6/1917 |
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| author | Li-Long Dang Ting-Ting Zhang Ting-Ting Li Tian Chen Ying Zhao Chen-Chen Zhao Lu-Fang Ma |
| author_facet | Li-Long Dang Ting-Ting Zhang Ting-Ting Li Tian Chen Ying Zhao Chen-Chen Zhao Lu-Fang Ma |
| author_sort | Li-Long Dang |
| collection | DOAJ |
| description | Herein, a new Zn-MOF material, [Zn(<b>L1</b>)(<b>L2</b>)], <b>1</b>, was built successfully through a one-pot solvothermal method. The 3D MOF structure was determined by Single X-ray diffraction analysis, IR, and elemental analysis. A series of PXRD tests of <b>1</b> after being immersed in different solvents and pH solutions demonstrated the good stability of <b>1</b>. Interestingly, this material displayed high catalytic activity for the visible-light-driven hydrogen generation under the illumination of white LED in pure water or a mixture of DMF and H<sub>2</sub>O without additional photosensitizers and cocatalysts. Besides, the studies also showed that the catalytic activity changed constantly as well as the solvent ratio adjustment of DMF and H<sub>2</sub>O from 4:6 to 2:8. Additionally, the catalytic activity reached the best value (743 μmol g<sup>−1</sup> h<sup>−1</sup>) when the solvent ratio was 4:6. The heterogeneous nature and recyclability of the MOF catalyst, as well as several factors that affect the catalytic activity, were investigated and described in detail. Moreover, the photocatalytic mechanism for the hydrogen generation of <b>1</b> was also proposed based on the fluorescence spectra and UV-vis absorption. |
| first_indexed | 2024-03-09T13:09:43Z |
| format | Article |
| id | doaj.art-886e7bd138cf4f35937fd41df03c1b98 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-09T13:09:43Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-886e7bd138cf4f35937fd41df03c1b982023-11-30T21:43:13ZengMDPI AGMolecules1420-30492022-03-01276191710.3390/molecules27061917Stable Zinc-Based Metal-Organic Framework Photocatalyst for Effective Visible-Light-Driven Hydrogen ProductionLi-Long Dang0Ting-Ting Zhang1Ting-Ting Li2Tian Chen3Ying Zhao4Chen-Chen Zhao5Lu-Fang Ma6Henan Province Function-Oriented Porous Materials Key Laboratory, College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, ChinaHenan Province Function-Oriented Porous Materials Key Laboratory, College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, ChinaHenan Province Function-Oriented Porous Materials Key Laboratory, College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, ChinaHenan Province Function-Oriented Porous Materials Key Laboratory, College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, ChinaHenan Province Function-Oriented Porous Materials Key Laboratory, College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, ChinaHenan Province Function-Oriented Porous Materials Key Laboratory, College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, ChinaHenan Province Function-Oriented Porous Materials Key Laboratory, College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, ChinaHerein, a new Zn-MOF material, [Zn(<b>L1</b>)(<b>L2</b>)], <b>1</b>, was built successfully through a one-pot solvothermal method. The 3D MOF structure was determined by Single X-ray diffraction analysis, IR, and elemental analysis. A series of PXRD tests of <b>1</b> after being immersed in different solvents and pH solutions demonstrated the good stability of <b>1</b>. Interestingly, this material displayed high catalytic activity for the visible-light-driven hydrogen generation under the illumination of white LED in pure water or a mixture of DMF and H<sub>2</sub>O without additional photosensitizers and cocatalysts. Besides, the studies also showed that the catalytic activity changed constantly as well as the solvent ratio adjustment of DMF and H<sub>2</sub>O from 4:6 to 2:8. Additionally, the catalytic activity reached the best value (743 μmol g<sup>−1</sup> h<sup>−1</sup>) when the solvent ratio was 4:6. The heterogeneous nature and recyclability of the MOF catalyst, as well as several factors that affect the catalytic activity, were investigated and described in detail. Moreover, the photocatalytic mechanism for the hydrogen generation of <b>1</b> was also proposed based on the fluorescence spectra and UV-vis absorption.https://www.mdpi.com/1420-3049/27/6/1917metal-organic frameworkphotocatalytic hydrogen generationfluorescence emission |
| spellingShingle | Li-Long Dang Ting-Ting Zhang Ting-Ting Li Tian Chen Ying Zhao Chen-Chen Zhao Lu-Fang Ma Stable Zinc-Based Metal-Organic Framework Photocatalyst for Effective Visible-Light-Driven Hydrogen Production Molecules metal-organic framework photocatalytic hydrogen generation fluorescence emission |
| title | Stable Zinc-Based Metal-Organic Framework Photocatalyst for Effective Visible-Light-Driven Hydrogen Production |
| title_full | Stable Zinc-Based Metal-Organic Framework Photocatalyst for Effective Visible-Light-Driven Hydrogen Production |
| title_fullStr | Stable Zinc-Based Metal-Organic Framework Photocatalyst for Effective Visible-Light-Driven Hydrogen Production |
| title_full_unstemmed | Stable Zinc-Based Metal-Organic Framework Photocatalyst for Effective Visible-Light-Driven Hydrogen Production |
| title_short | Stable Zinc-Based Metal-Organic Framework Photocatalyst for Effective Visible-Light-Driven Hydrogen Production |
| title_sort | stable zinc based metal organic framework photocatalyst for effective visible light driven hydrogen production |
| topic | metal-organic framework photocatalytic hydrogen generation fluorescence emission |
| url | https://www.mdpi.com/1420-3049/27/6/1917 |
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