Investigation of Two Novel Heterojunction Photocatalysts with Boosted Hydrogen Evolution Performance
Among the reported photocatalysts, ZnIn<sub>2</sub>S<sub>4</sub> has garnered significant research interest due to its advantageous layered structure and appropriate band gap. However, achieving rational design and effective interfacial regulation in heterojunctions remains c...
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MDPI AG
2024-12-01
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| Series: | Nanomaterials |
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| author | Kaifeng Zhang Xudong Wang Yanjing Su |
| author_facet | Kaifeng Zhang Xudong Wang Yanjing Su |
| author_sort | Kaifeng Zhang |
| collection | DOAJ |
| description | Among the reported photocatalysts, ZnIn<sub>2</sub>S<sub>4</sub> has garnered significant research interest due to its advantageous layered structure and appropriate band gap. However, achieving rational design and effective interfacial regulation in heterojunctions remains challenging. In this study, we designed two novel heterojunctions: SrTiO<sub>3</sub>@ZnIn<sub>2</sub>S<sub>4</sub> and SrCrO<sub>3</sub>@ZnIn<sub>2</sub>S<sub>4</sub>. The photocatalytic hydrogen evolution performance of prepared heterojunctions was systematically investigated under different single-wavelength light sources. Without a cocatalyst, the optimized hydrogen evolution efficiency of SrTiO<sub>3</sub>@ZnIn<sub>2</sub>S<sub>4</sub> and SrCrO<sub>3</sub>@ZnIn<sub>2</sub>S<sub>4</sub> reached 3.27 and 4.6 mmol g<sup>−1</sup>. The enhanced photocatalytic performance can be attributed to the formation of a type-II heterojunction, which improves light absorption capabilities and promotes the separation and transfer of photoinduced carriers. This study provides valuable insights into the strategic construction of heterojunctions for photocatalytic water splitting. |
| format | Article |
| id | doaj-art-7c986c8994f3432eb7f60e452ab6dcde |
| institution | Kabale University |
| issn | 2079-4991 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj-art-7c986c8994f3432eb7f60e452ab6dcde2024-12-13T16:29:30ZengMDPI AGNanomaterials2079-49912024-12-011423194710.3390/nano14231947Investigation of Two Novel Heterojunction Photocatalysts with Boosted Hydrogen Evolution PerformanceKaifeng Zhang0Xudong Wang1Yanjing Su2Beijing Advanced Innovation Center for Materials Genome Engineering, Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, ChinaCorrosion and Protection Center, University of Science and Technology Beijing, Beijing 100083, ChinaBeijing Advanced Innovation Center for Materials Genome Engineering, Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, ChinaAmong the reported photocatalysts, ZnIn<sub>2</sub>S<sub>4</sub> has garnered significant research interest due to its advantageous layered structure and appropriate band gap. However, achieving rational design and effective interfacial regulation in heterojunctions remains challenging. In this study, we designed two novel heterojunctions: SrTiO<sub>3</sub>@ZnIn<sub>2</sub>S<sub>4</sub> and SrCrO<sub>3</sub>@ZnIn<sub>2</sub>S<sub>4</sub>. The photocatalytic hydrogen evolution performance of prepared heterojunctions was systematically investigated under different single-wavelength light sources. Without a cocatalyst, the optimized hydrogen evolution efficiency of SrTiO<sub>3</sub>@ZnIn<sub>2</sub>S<sub>4</sub> and SrCrO<sub>3</sub>@ZnIn<sub>2</sub>S<sub>4</sub> reached 3.27 and 4.6 mmol g<sup>−1</sup>. The enhanced photocatalytic performance can be attributed to the formation of a type-II heterojunction, which improves light absorption capabilities and promotes the separation and transfer of photoinduced carriers. This study provides valuable insights into the strategic construction of heterojunctions for photocatalytic water splitting.https://www.mdpi.com/2079-4991/14/23/1947composite materialssemiconductorsnanocompositesphotocatalysis |
| spellingShingle | Kaifeng Zhang Xudong Wang Yanjing Su Investigation of Two Novel Heterojunction Photocatalysts with Boosted Hydrogen Evolution Performance Nanomaterials composite materials semiconductors nanocomposites photocatalysis |
| title | Investigation of Two Novel Heterojunction Photocatalysts with Boosted Hydrogen Evolution Performance |
| title_full | Investigation of Two Novel Heterojunction Photocatalysts with Boosted Hydrogen Evolution Performance |
| title_fullStr | Investigation of Two Novel Heterojunction Photocatalysts with Boosted Hydrogen Evolution Performance |
| title_full_unstemmed | Investigation of Two Novel Heterojunction Photocatalysts with Boosted Hydrogen Evolution Performance |
| title_short | Investigation of Two Novel Heterojunction Photocatalysts with Boosted Hydrogen Evolution Performance |
| title_sort | investigation of two novel heterojunction photocatalysts with boosted hydrogen evolution performance |
| topic | composite materials semiconductors nanocomposites photocatalysis |
| url | https://www.mdpi.com/2079-4991/14/23/1947 |
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