High activity of Ag-doped Cd0.1Zn0.9S photocatalyst prepared by the hydrothermal method for hydrogen production under visible-light irradiation
Background: The hydrothermal method was used as a new approach to prepare a series of Ag-doped Cd0.1Zn0.9S photocatalysts. The effect of Ag doping on the properties and photocatalytic activity of Cd0.1Zn0.9S was studied for the hydrogen production fromwater reduction under visible light irradiation....
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| Format: | Article |
| Language: | English |
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Beilstein-Institut.
2014
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| Online Access: | http://ir.unimas.my/id/eprint/7012/ http://ir.unimas.my/id/eprint/7012/1/CdAgZnS%20published-001.pdf |
| _version_ | 1848836040653012992 |
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| author | Leny, Yuliati Melody, Kimi Mustaffa, Shamsuddin |
| author_facet | Leny, Yuliati Melody, Kimi Mustaffa, Shamsuddin |
| author_sort | Leny, Yuliati |
| building | UNIMAS Institutional Repository |
| collection | Online Access |
| description | Background: The hydrothermal method was used as a new approach to prepare a series of Ag-doped Cd0.1Zn0.9S photocatalysts. The effect of Ag doping on the properties and photocatalytic activity of Cd0.1Zn0.9S was studied for the hydrogen production fromwater reduction under visible light irradiation.
Results: Compared to the series prepared by the co-precipitation method, samples prepared by the hydrothermal method performed with a better photocatalytic activity. The sample with the optimum amount of Ag doping showed the highest hydrogen production rate of 3.91 mmol/h, which was 1.7 times higher than that of undoped Cd0.1Zn0.9S. With the Ag doping, a red shift in the optical response was observed, leading to a larger portion of the visible light absorption than that of without doping. In addition to the larger absorption in the visible-light region, the increase in photocatalytic activity of samples with Ag doping may also come from the Ag species facilitating electron–hole separation.
Conclusion: This study demonstrated that Ag doping is a promising way to enhance the activity of Cd0.1Zn0.9S photocatalyst. |
| first_indexed | 2025-11-15T06:17:27Z |
| format | Article |
| id | unimas-7012 |
| institution | Universiti Malaysia Sarawak |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T06:17:27Z |
| publishDate | 2014 |
| publisher | Beilstein-Institut. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | unimas-70122015-09-10T03:37:13Z http://ir.unimas.my/id/eprint/7012/ High activity of Ag-doped Cd0.1Zn0.9S photocatalyst prepared by the hydrothermal method for hydrogen production under visible-light irradiation Leny, Yuliati Melody, Kimi Mustaffa, Shamsuddin QD Chemistry Background: The hydrothermal method was used as a new approach to prepare a series of Ag-doped Cd0.1Zn0.9S photocatalysts. The effect of Ag doping on the properties and photocatalytic activity of Cd0.1Zn0.9S was studied for the hydrogen production fromwater reduction under visible light irradiation. Results: Compared to the series prepared by the co-precipitation method, samples prepared by the hydrothermal method performed with a better photocatalytic activity. The sample with the optimum amount of Ag doping showed the highest hydrogen production rate of 3.91 mmol/h, which was 1.7 times higher than that of undoped Cd0.1Zn0.9S. With the Ag doping, a red shift in the optical response was observed, leading to a larger portion of the visible light absorption than that of without doping. In addition to the larger absorption in the visible-light region, the increase in photocatalytic activity of samples with Ag doping may also come from the Ag species facilitating electron–hole separation. Conclusion: This study demonstrated that Ag doping is a promising way to enhance the activity of Cd0.1Zn0.9S photocatalyst. Beilstein-Institut. 2014-05-07 Article PeerReviewed text en http://ir.unimas.my/id/eprint/7012/1/CdAgZnS%20published-001.pdf Leny, Yuliati and Melody, Kimi and Mustaffa, Shamsuddin (2014) High activity of Ag-doped Cd0.1Zn0.9S photocatalyst prepared by the hydrothermal method for hydrogen production under visible-light irradiation. Beilstein Journal of Nanotechnology, 5. pp. 587-595. ISSN 2190-4286 http://www.beilstein-journals.org/bjnano/single/articleFullText.htm?publicId=2190-4286-5-69 doi:10.3762/bjnano.5.69 |
| spellingShingle | QD Chemistry Leny, Yuliati Melody, Kimi Mustaffa, Shamsuddin High activity of Ag-doped Cd0.1Zn0.9S photocatalyst prepared by the hydrothermal method for hydrogen production under visible-light irradiation |
| title | High activity of Ag-doped Cd0.1Zn0.9S photocatalyst prepared by the hydrothermal method for hydrogen production under visible-light irradiation |
| title_full | High activity of Ag-doped Cd0.1Zn0.9S photocatalyst prepared by the hydrothermal method for hydrogen production under visible-light irradiation |
| title_fullStr | High activity of Ag-doped Cd0.1Zn0.9S photocatalyst prepared by the hydrothermal method for hydrogen production under visible-light irradiation |
| title_full_unstemmed | High activity of Ag-doped Cd0.1Zn0.9S photocatalyst prepared by the hydrothermal method for hydrogen production under visible-light irradiation |
| title_short | High activity of Ag-doped Cd0.1Zn0.9S photocatalyst prepared by the hydrothermal method for hydrogen production under visible-light irradiation |
| title_sort | high activity of ag-doped cd0.1zn0.9s photocatalyst prepared by the hydrothermal method for hydrogen production under visible-light irradiation |
| topic | QD Chemistry |
| url | http://ir.unimas.my/id/eprint/7012/ http://ir.unimas.my/id/eprint/7012/ http://ir.unimas.my/id/eprint/7012/ http://ir.unimas.my/id/eprint/7012/1/CdAgZnS%20published-001.pdf |