Preparation and Photocatalytic Hydrogen Production of Pink ZnS
With the continuous growth of global energy demand and the increasingly severe environmental issues, the extensive utilization of traditional fossil fuels has led to serious energy crises and environmental pollution problems. In this study, a hydrothermal method was employed, and by adding ethanolam...
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| Language: | English |
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MDPI AG
2025-05-01
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| Series: | Inorganics |
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| Online Access: | https://www.mdpi.com/2304-6740/13/5/166 |
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| author | Shangjie Gao Yongxin Lu Teng Ma Haixia Liu Jie Zhang |
| author_facet | Shangjie Gao Yongxin Lu Teng Ma Haixia Liu Jie Zhang |
| author_sort | Shangjie Gao |
| collection | DOAJ |
| description | With the continuous growth of global energy demand and the increasingly severe environmental issues, the extensive utilization of traditional fossil fuels has led to serious energy crises and environmental pollution problems. In this study, a hydrothermal method was employed, and by adding ethanolamine and controlling different temperatures, pink zinc sulfide with zinc vacancies was synthesized. UV-Vis DRS analysis indicated that the sample exhibited significant visible light absorption characteristics within the wavelength range of 500–550 nm. The presence of zinc vacancies was confirmed through XPS. Due to the existence of zinc vacancies, the sample demonstrated excellent photocatalytic hydrogen evolution activity without the need for co-catalysts, with the optimal sample achieving a hydrogen evolution rate of 7631.70 μmol h<sup>−1</sup> g<sup>−1</sup>. Zinc vacancies can provide additional active sites, enhance catalytic efficiency, and promote the separation of photogenerated electrons and holes. Furthermore, the introduction of vacancies effectively reduces the bandgap of the material, significantly broadening its visible light absorption range. This work provides a new approach for enhancing hydrogen evolution in pure ZnS and offers novel strategies for the further design of ZnS-related photocatalysts. |
| format | Article |
| id | doaj-art-ae71a8ee3300467fb5ccfd31a6491be8 |
| institution | DOAJ |
| issn | 2304-6740 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Inorganics |
| spelling | doaj-art-ae71a8ee3300467fb5ccfd31a6491be82025-08-20T03:14:41ZengMDPI AGInorganics2304-67402025-05-0113516610.3390/inorganics13050166Preparation and Photocatalytic Hydrogen Production of Pink ZnSShangjie Gao0Yongxin Lu1Teng Ma2Haixia Liu3Jie Zhang4Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, ChinaShandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, ChinaShandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, ChinaShandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, ChinaShandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, ChinaWith the continuous growth of global energy demand and the increasingly severe environmental issues, the extensive utilization of traditional fossil fuels has led to serious energy crises and environmental pollution problems. In this study, a hydrothermal method was employed, and by adding ethanolamine and controlling different temperatures, pink zinc sulfide with zinc vacancies was synthesized. UV-Vis DRS analysis indicated that the sample exhibited significant visible light absorption characteristics within the wavelength range of 500–550 nm. The presence of zinc vacancies was confirmed through XPS. Due to the existence of zinc vacancies, the sample demonstrated excellent photocatalytic hydrogen evolution activity without the need for co-catalysts, with the optimal sample achieving a hydrogen evolution rate of 7631.70 μmol h<sup>−1</sup> g<sup>−1</sup>. Zinc vacancies can provide additional active sites, enhance catalytic efficiency, and promote the separation of photogenerated electrons and holes. Furthermore, the introduction of vacancies effectively reduces the bandgap of the material, significantly broadening its visible light absorption range. This work provides a new approach for enhancing hydrogen evolution in pure ZnS and offers novel strategies for the further design of ZnS-related photocatalysts.https://www.mdpi.com/2304-6740/13/5/166pink ZnSvacancytemperaturephotocatalytic hydrogen evolution |
| spellingShingle | Shangjie Gao Yongxin Lu Teng Ma Haixia Liu Jie Zhang Preparation and Photocatalytic Hydrogen Production of Pink ZnS Inorganics pink ZnS vacancy temperature photocatalytic hydrogen evolution |
| title | Preparation and Photocatalytic Hydrogen Production of Pink ZnS |
| title_full | Preparation and Photocatalytic Hydrogen Production of Pink ZnS |
| title_fullStr | Preparation and Photocatalytic Hydrogen Production of Pink ZnS |
| title_full_unstemmed | Preparation and Photocatalytic Hydrogen Production of Pink ZnS |
| title_short | Preparation and Photocatalytic Hydrogen Production of Pink ZnS |
| title_sort | preparation and photocatalytic hydrogen production of pink zns |
| topic | pink ZnS vacancy temperature photocatalytic hydrogen evolution |
| url | https://www.mdpi.com/2304-6740/13/5/166 |
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