Highly efficient visible-light-driven photocatalytic hydrogen evolution by all-solid-state Z-scheme CdS/QDs/ZnIn2S4 architectures with MoS2 quantum dots as solid-state electron mediator
All-solid-state Z-scheme CdS/QDs/ZnIn2S4 architectures with MoS2 quantum dots as solid-state electron mediator were successfully designed and constructed by optimally combining one-dimensional CdS nanorods, zero-dimensional MoS2 quantum dots (QDs) and two-dimensional ZnIn2S4 nanosheets. The photocat...
| Main Authors: | , , , , |
|---|---|
| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2021
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/150386 |
| _version_ | 1811684025452986368 |
|---|---|
| author | Chen, Wei Yan, Rui-Qiang Zhu, Jian-Qun Huang, Guo-Bo Chen, Zhong |
| author2 | School of Materials Science and Engineering |
| author_facet | School of Materials Science and Engineering Chen, Wei Yan, Rui-Qiang Zhu, Jian-Qun Huang, Guo-Bo Chen, Zhong |
| author_sort | Chen, Wei |
| collection | NTU |
| description | All-solid-state Z-scheme CdS/QDs/ZnIn2S4 architectures with MoS2 quantum dots as solid-state electron mediator were successfully designed and constructed by optimally combining one-dimensional CdS nanorods, zero-dimensional MoS2 quantum dots (QDs) and two-dimensional ZnIn2S4 nanosheets. The photocatalytic water splitting for hydrogen evolution demonstrated that such structural design can synergistically trigger remarkably improved visible-light-driven photocatalytic activity. Photocatalytic H2-evolution at 2107.5 μmol g−1 h−1 was achieved on this CdS/QDs/ZnIn2S4 architectures under visible light irradiation, exceeding those of bare CdS nanorods and pure ZnIn2S4 nanosheets by a factor of 26 and 62, respectively. This highly efficient photocatalytic activity arises from the effective charge separation and favourable electron mediator of MoS2 QDs. The Z-scheme charge separation mechanism was verified by the ESR, PL-TA and organic electron acceptor test. |
| first_indexed | 2024-10-01T04:22:04Z |
| format | Journal Article |
| id | ntu-10356/150386 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:22:04Z |
| publishDate | 2021 |
| record_format | dspace |
| spelling | ntu-10356/1503862023-07-14T15:48:14Z Highly efficient visible-light-driven photocatalytic hydrogen evolution by all-solid-state Z-scheme CdS/QDs/ZnIn2S4 architectures with MoS2 quantum dots as solid-state electron mediator Chen, Wei Yan, Rui-Qiang Zhu, Jian-Qun Huang, Guo-Bo Chen, Zhong School of Materials Science and Engineering Engineering::Materials Cadmium Sulfide Molybdenum Disulfide All-solid-state Z-scheme CdS/QDs/ZnIn2S4 architectures with MoS2 quantum dots as solid-state electron mediator were successfully designed and constructed by optimally combining one-dimensional CdS nanorods, zero-dimensional MoS2 quantum dots (QDs) and two-dimensional ZnIn2S4 nanosheets. The photocatalytic water splitting for hydrogen evolution demonstrated that such structural design can synergistically trigger remarkably improved visible-light-driven photocatalytic activity. Photocatalytic H2-evolution at 2107.5 μmol g−1 h−1 was achieved on this CdS/QDs/ZnIn2S4 architectures under visible light irradiation, exceeding those of bare CdS nanorods and pure ZnIn2S4 nanosheets by a factor of 26 and 62, respectively. This highly efficient photocatalytic activity arises from the effective charge separation and favourable electron mediator of MoS2 QDs. The Z-scheme charge separation mechanism was verified by the ESR, PL-TA and organic electron acceptor test. Accepted version We acknowledged the financial supports from Zhejiang Provincial Natural Science Foundation (LQ19E020001), National Natural Science Foundation of China (21671146), Chemical Engineering & Technology of Zhejiang Province First-Class Discipline (Taizhou University), Science and Technology Project of Taizhou City (1902gy19) and Key Research and Development Projects of Zhejiang Province (Grant No. 2018C04006). 2021-05-24T03:30:33Z 2021-05-24T03:30:33Z 2019 Journal Article Chen, W., Yan, R., Zhu, J., Huang, G. & Chen, Z. (2019). Highly efficient visible-light-driven photocatalytic hydrogen evolution by all-solid-state Z-scheme CdS/QDs/ZnIn2S4 architectures with MoS2 quantum dots as solid-state electron mediator. Applied Surface Science, 504, 144406-. https://dx.doi.org/10.1016/j.apsusc.2019.144406 0169-4332 0000-0002-1233-9023 0000-0001-7518-1414 https://hdl.handle.net/10356/150386 10.1016/j.apsusc.2019.144406 2-s2.0-85074448862 504 144406 en Applied Surface Science © 2019 Elsevier B.V. All rights reserved. This paper was published in Applied Surface Science and is made available with permission of Elsevier B.V. application/pdf |
| spellingShingle | Engineering::Materials Cadmium Sulfide Molybdenum Disulfide Chen, Wei Yan, Rui-Qiang Zhu, Jian-Qun Huang, Guo-Bo Chen, Zhong Highly efficient visible-light-driven photocatalytic hydrogen evolution by all-solid-state Z-scheme CdS/QDs/ZnIn2S4 architectures with MoS2 quantum dots as solid-state electron mediator |
| title | Highly efficient visible-light-driven photocatalytic hydrogen evolution by all-solid-state Z-scheme CdS/QDs/ZnIn2S4 architectures with MoS2 quantum dots as solid-state electron mediator |
| title_full | Highly efficient visible-light-driven photocatalytic hydrogen evolution by all-solid-state Z-scheme CdS/QDs/ZnIn2S4 architectures with MoS2 quantum dots as solid-state electron mediator |
| title_fullStr | Highly efficient visible-light-driven photocatalytic hydrogen evolution by all-solid-state Z-scheme CdS/QDs/ZnIn2S4 architectures with MoS2 quantum dots as solid-state electron mediator |
| title_full_unstemmed | Highly efficient visible-light-driven photocatalytic hydrogen evolution by all-solid-state Z-scheme CdS/QDs/ZnIn2S4 architectures with MoS2 quantum dots as solid-state electron mediator |
| title_short | Highly efficient visible-light-driven photocatalytic hydrogen evolution by all-solid-state Z-scheme CdS/QDs/ZnIn2S4 architectures with MoS2 quantum dots as solid-state electron mediator |
| title_sort | highly efficient visible light driven photocatalytic hydrogen evolution by all solid state z scheme cds qds znin2s4 architectures with mos2 quantum dots as solid state electron mediator |
| topic | Engineering::Materials Cadmium Sulfide Molybdenum Disulfide |
| url | https://hdl.handle.net/10356/150386 |
| work_keys_str_mv | AT chenwei highlyefficientvisiblelightdrivenphotocatalytichydrogenevolutionbyallsolidstatezschemecdsqdsznin2s4architectureswithmos2quantumdotsassolidstateelectronmediator AT yanruiqiang highlyefficientvisiblelightdrivenphotocatalytichydrogenevolutionbyallsolidstatezschemecdsqdsznin2s4architectureswithmos2quantumdotsassolidstateelectronmediator AT zhujianqun highlyefficientvisiblelightdrivenphotocatalytichydrogenevolutionbyallsolidstatezschemecdsqdsznin2s4architectureswithmos2quantumdotsassolidstateelectronmediator AT huangguobo highlyefficientvisiblelightdrivenphotocatalytichydrogenevolutionbyallsolidstatezschemecdsqdsznin2s4architectureswithmos2quantumdotsassolidstateelectronmediator AT chenzhong highlyefficientvisiblelightdrivenphotocatalytichydrogenevolutionbyallsolidstatezschemecdsqdsznin2s4architectureswithmos2quantumdotsassolidstateelectronmediator |