One-pot synthesis of CdS nanocrystals hybridized with single-layer transition-metal dichalcogenide nanosheets for efficient photocatalytic hydrogen evolution
Exploration of low-cost and earth-abundant photocatalysts for highly efficient solar photocatalytic water splitting is of great importance. Although transition-metal dichalcogenides (TMDs) showed outstanding performance as co-catalysts for the hydrogen evolution reaction (HER), designing TMD-hybridi...
| Main Authors: | , , , , , , , , |
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| Format: | Journal Article |
| Language: | English |
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2015
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| Online Access: | https://hdl.handle.net/10356/106577 http://hdl.handle.net/10220/25001 |
| _version_ | 1826120016831971328 |
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| author | Chen, Junze Wu, Xue-Jun Yin, Lisha Li, Bing Hong, Xun Fan, Zhanxi Chen, Bo Xue, Can Zhang, Hua |
| author2 | School of Materials Science & Engineering |
| author_facet | School of Materials Science & Engineering Chen, Junze Wu, Xue-Jun Yin, Lisha Li, Bing Hong, Xun Fan, Zhanxi Chen, Bo Xue, Can Zhang, Hua |
| author_sort | Chen, Junze |
| collection | NTU |
| description | Exploration of low-cost and earth-abundant photocatalysts for highly efficient solar photocatalytic water splitting is of great importance. Although transition-metal dichalcogenides (TMDs) showed outstanding performance as co-catalysts for the hydrogen evolution reaction (HER), designing TMD-hybridized photocatalysts with abundant active sites for the HER still remains challenge. Here, a facile one-pot wet-chemical method is developed to prepare MS2–CdS (M=W or Mo) nanohybrids. Surprisedly, in the obtained nanohybrids, single-layer MS2 nanosheets with lateral size of 4–10 nm selectively grow on the Cd-rich (0001) surface of wurtzite CdS nanocrystals. These MS2–CdS nanohybrids possess a large number of edge sites in the MS2 layers, which are active sites for the HER. The photocatalytic performances of WS2–CdS and MoS2–CdS nanohybrids towards the HER under visible light irradiation (>420 nm) are about 16 and 12 times that of pure CdS, respectively. Importantly, the MS2–CdS nanohybrids showed enhanced stability after a long-time test (16 h), and 70 % of catalytic activity still remained. |
| first_indexed | 2024-10-01T05:09:18Z |
| format | Journal Article |
| id | ntu-10356/106577 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:09:18Z |
| publishDate | 2015 |
| record_format | dspace |
| spelling | ntu-10356/1065772020-06-01T10:21:13Z One-pot synthesis of CdS nanocrystals hybridized with single-layer transition-metal dichalcogenide nanosheets for efficient photocatalytic hydrogen evolution Chen, Junze Wu, Xue-Jun Yin, Lisha Li, Bing Hong, Xun Fan, Zhanxi Chen, Bo Xue, Can Zhang, Hua School of Materials Science & Engineering DRNTU::Engineering::Materials::Nanostructured materials Exploration of low-cost and earth-abundant photocatalysts for highly efficient solar photocatalytic water splitting is of great importance. Although transition-metal dichalcogenides (TMDs) showed outstanding performance as co-catalysts for the hydrogen evolution reaction (HER), designing TMD-hybridized photocatalysts with abundant active sites for the HER still remains challenge. Here, a facile one-pot wet-chemical method is developed to prepare MS2–CdS (M=W or Mo) nanohybrids. Surprisedly, in the obtained nanohybrids, single-layer MS2 nanosheets with lateral size of 4–10 nm selectively grow on the Cd-rich (0001) surface of wurtzite CdS nanocrystals. These MS2–CdS nanohybrids possess a large number of edge sites in the MS2 layers, which are active sites for the HER. The photocatalytic performances of WS2–CdS and MoS2–CdS nanohybrids towards the HER under visible light irradiation (>420 nm) are about 16 and 12 times that of pure CdS, respectively. Importantly, the MS2–CdS nanohybrids showed enhanced stability after a long-time test (16 h), and 70 % of catalytic activity still remained. 2015-02-02T05:29:05Z 2019-12-06T22:14:28Z 2015-02-02T05:29:05Z 2019-12-06T22:14:28Z 2015 2015 Journal Article Chen, J., Wu, X.-J., Yin, L., Li, B., Hong, X., Fan, Z., et al. (2015). One-pot synthesis of CdS nanocrystals hybridized with single-layer transition-metal dichalcogenide nanosheets for efficient photocatalytic hydrogen evolution. Angewandte chemie International edition, 54(4), 1210-1214. 1433-7851 https://hdl.handle.net/10356/106577 http://hdl.handle.net/10220/25001 10.1002/anie.201410172 en Angewandte chemie international edition © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. |
| spellingShingle | DRNTU::Engineering::Materials::Nanostructured materials Chen, Junze Wu, Xue-Jun Yin, Lisha Li, Bing Hong, Xun Fan, Zhanxi Chen, Bo Xue, Can Zhang, Hua One-pot synthesis of CdS nanocrystals hybridized with single-layer transition-metal dichalcogenide nanosheets for efficient photocatalytic hydrogen evolution |
| title | One-pot synthesis of CdS nanocrystals hybridized with single-layer transition-metal dichalcogenide nanosheets for efficient photocatalytic hydrogen evolution |
| title_full | One-pot synthesis of CdS nanocrystals hybridized with single-layer transition-metal dichalcogenide nanosheets for efficient photocatalytic hydrogen evolution |
| title_fullStr | One-pot synthesis of CdS nanocrystals hybridized with single-layer transition-metal dichalcogenide nanosheets for efficient photocatalytic hydrogen evolution |
| title_full_unstemmed | One-pot synthesis of CdS nanocrystals hybridized with single-layer transition-metal dichalcogenide nanosheets for efficient photocatalytic hydrogen evolution |
| title_short | One-pot synthesis of CdS nanocrystals hybridized with single-layer transition-metal dichalcogenide nanosheets for efficient photocatalytic hydrogen evolution |
| title_sort | one pot synthesis of cds nanocrystals hybridized with single layer transition metal dichalcogenide nanosheets for efficient photocatalytic hydrogen evolution |
| topic | DRNTU::Engineering::Materials::Nanostructured materials |
| url | https://hdl.handle.net/10356/106577 http://hdl.handle.net/10220/25001 |
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