Cobalt phosphate co-catalysts and boron-doped ZnIn2S4 nanosheets for efficient photocatalytic hydrogen conversion
In the quest for effective photocatalysts for hydrogen production via photocatalytic water splitting, ZnIn2S4 has garnered considerable attention due to its high photocatalytic hydrogen evolution capability. In this study, boron-doped ZnIn2S4 was successfully synthesized via a hydrothermal method, w...
| Main Authors: | , , , , , , , , |
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| Format: | Journal Article |
| Language: | English |
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2024
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| Online Access: | https://hdl.handle.net/10356/180762 |
| _version_ | 1826120400724033536 |
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| author | Liu, Wen Ye, Furong Zhao, Yahao Liu, Peng Han, Changcun Luoshan, Meng-Dai Tian, Jiayi Cheng, Zhengwang Huang, Yizhong |
| author2 | School of Materials Science and Engineering |
| author_facet | School of Materials Science and Engineering Liu, Wen Ye, Furong Zhao, Yahao Liu, Peng Han, Changcun Luoshan, Meng-Dai Tian, Jiayi Cheng, Zhengwang Huang, Yizhong |
| author_sort | Liu, Wen |
| collection | NTU |
| description | In the quest for effective photocatalysts for hydrogen production via photocatalytic water splitting, ZnIn2S4 has garnered considerable attention due to its high photocatalytic hydrogen evolution capability. In this study, boron-doped ZnIn2S4 was successfully synthesized via a hydrothermal method, with a small amount of cobalt phosphate (Co-Pi) decorated on its surface. The hydrogen evolution rate of boron-doped ZnIn2S4 was determined to be 5.2 mmol g−1 h−1, surpassing that of pure ZnIn2S4 by 1.68 times. Moreover, with the addition of Co-Pi to boron-doped ZnIn2S4, the hydrogen production rate escalated to 29.7 mmol g−1 h−1, which is 9.58 times higher compared to pure ZnIn2S4. UV–vis analysis revealed that boron doping introduced new energy levels into ZnIn2S4, effectively narrowing the bandgap and enhancing light absorption wavelength range. Furthermore, PL and XPS analyses indicate that Co-Pi effectively captures photogenerated holes (h+) in ZnIn2S4, retaining photogenerated electrons and overcoming the disadvantage of electron-hole pair recombination in ZnIn2S4. The doping and loading of Co-Pi as a cocatalyst ultimately contribute to enhancing hydrogen production efficiency, thereby significantly improving the photocatalytic hydrogen evolution capability of ZnIn2S4. This study provides a scalable idea for designing composite catalysts in which doping and co-catalysts work together. |
| first_indexed | 2025-03-09T12:42:04Z |
| format | Journal Article |
| id | ntu-10356/180762 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2025-03-09T12:42:04Z |
| publishDate | 2024 |
| record_format | dspace |
| spelling | ntu-10356/1807622024-10-23T02:22:48Z Cobalt phosphate co-catalysts and boron-doped ZnIn2S4 nanosheets for efficient photocatalytic hydrogen conversion Liu, Wen Ye, Furong Zhao, Yahao Liu, Peng Han, Changcun Luoshan, Meng-Dai Tian, Jiayi Cheng, Zhengwang Huang, Yizhong School of Materials Science and Engineering Engineering Boron doping Cobalt phosphate In the quest for effective photocatalysts for hydrogen production via photocatalytic water splitting, ZnIn2S4 has garnered considerable attention due to its high photocatalytic hydrogen evolution capability. In this study, boron-doped ZnIn2S4 was successfully synthesized via a hydrothermal method, with a small amount of cobalt phosphate (Co-Pi) decorated on its surface. The hydrogen evolution rate of boron-doped ZnIn2S4 was determined to be 5.2 mmol g−1 h−1, surpassing that of pure ZnIn2S4 by 1.68 times. Moreover, with the addition of Co-Pi to boron-doped ZnIn2S4, the hydrogen production rate escalated to 29.7 mmol g−1 h−1, which is 9.58 times higher compared to pure ZnIn2S4. UV–vis analysis revealed that boron doping introduced new energy levels into ZnIn2S4, effectively narrowing the bandgap and enhancing light absorption wavelength range. Furthermore, PL and XPS analyses indicate that Co-Pi effectively captures photogenerated holes (h+) in ZnIn2S4, retaining photogenerated electrons and overcoming the disadvantage of electron-hole pair recombination in ZnIn2S4. The doping and loading of Co-Pi as a cocatalyst ultimately contribute to enhancing hydrogen production efficiency, thereby significantly improving the photocatalytic hydrogen evolution capability of ZnIn2S4. This study provides a scalable idea for designing composite catalysts in which doping and co-catalysts work together. This work was financially supported by the National Natural Science Foundation of China (Grant No. 52103339), Natural Science Foundation of Hubei Province (Grant No. 2023AFB984, 2018CFB282) and China-Africa Partnership Institute Exchange Program of the Ministry of Science and Technology of China. 2024-10-23T02:22:48Z 2024-10-23T02:22:48Z 2024 Journal Article Liu, W., Ye, F., Zhao, Y., Liu, P., Han, C., Luoshan, M., Tian, J., Cheng, Z. & Huang, Y. (2024). Cobalt phosphate co-catalysts and boron-doped ZnIn2S4 nanosheets for efficient photocatalytic hydrogen conversion. International Journal of Hydrogen Energy, 79, 106-114. https://dx.doi.org/10.1016/j.ijhydene.2024.07.015 0360-3199 https://hdl.handle.net/10356/180762 10.1016/j.ijhydene.2024.07.015 2-s2.0-85197103741 79 106 114 en International Journal of Hydrogen Energy © 2024 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights are reserved, including those for text and data mining, AI training, and similar technologies. |
| spellingShingle | Engineering Boron doping Cobalt phosphate Liu, Wen Ye, Furong Zhao, Yahao Liu, Peng Han, Changcun Luoshan, Meng-Dai Tian, Jiayi Cheng, Zhengwang Huang, Yizhong Cobalt phosphate co-catalysts and boron-doped ZnIn2S4 nanosheets for efficient photocatalytic hydrogen conversion |
| title | Cobalt phosphate co-catalysts and boron-doped ZnIn2S4 nanosheets for efficient photocatalytic hydrogen conversion |
| title_full | Cobalt phosphate co-catalysts and boron-doped ZnIn2S4 nanosheets for efficient photocatalytic hydrogen conversion |
| title_fullStr | Cobalt phosphate co-catalysts and boron-doped ZnIn2S4 nanosheets for efficient photocatalytic hydrogen conversion |
| title_full_unstemmed | Cobalt phosphate co-catalysts and boron-doped ZnIn2S4 nanosheets for efficient photocatalytic hydrogen conversion |
| title_short | Cobalt phosphate co-catalysts and boron-doped ZnIn2S4 nanosheets for efficient photocatalytic hydrogen conversion |
| title_sort | cobalt phosphate co catalysts and boron doped znin2s4 nanosheets for efficient photocatalytic hydrogen conversion |
| topic | Engineering Boron doping Cobalt phosphate |
| url | https://hdl.handle.net/10356/180762 |
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