Polytriazine@CdS nanosheets as photosensitizer free catalyst for efficient photocatalytic reduction of CO2
The development of CdS-based photocatalysts with the appropriate bandgap structure, impressive optical response, and long-lasting reusability is both crucial and challenging. The heterogeneous catalyst, made up of polytriazine and CdS, demonstrates exceptional photogenerated charge separation and tr...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-03-01
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| Series: | Materials Today Catalysis |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2949754X24000437 |
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| author | Jian Chen Yixin Huang Liu Wan Cheng Du Yan Zhang Mingjiang Xie |
| author_facet | Jian Chen Yixin Huang Liu Wan Cheng Du Yan Zhang Mingjiang Xie |
| author_sort | Jian Chen |
| collection | DOAJ |
| description | The development of CdS-based photocatalysts with the appropriate bandgap structure, impressive optical response, and long-lasting reusability is both crucial and challenging. The heterogeneous catalyst, made up of polytriazine and CdS, demonstrates exceptional photogenerated charge separation and transfer capabilities, as well as superior CO2 adsorption abilities. In this study, we have shown that the CO2 photoassisted reduction efficiency of CdS nanosheets can be significantly improved through surface modification with a polytriazine polymer coating. The PP@CdS photocatalyst has been thoroughly characterized using techniques such as XRD, TEM, SEM, N2 adsorption-desorption, CO2 adsorption, DRS, XPS, and photoelectric performance tests. The catalytic performance of the PP@CdS was assessed through photoassisted CO2 reduction reactions under visible light irradiation in an aqueous medium at 25 ℃. Owing to its enhanced CO2 adsorption capacity and the efficient separation and utilization of photogenerated electrons, the PP@CdS photocatalyst demonstrated a CO yield (6.7 μmol/g/h) 1.3 times greater and a CH4 yield (4.2 μmol/g/h) 1.3 times higher than that of bare CdS nanosheets. Furthermore, the PP@CdS photocatalyst demonstrated outstanding reusability in CO2 reduction reactions. This study presents a novel approach to enhancing the CO2 adsorption capacity and modulating the bandgap structure of polymer-coated semiconductor materials. |
| format | Article |
| id | doaj-art-9620a5beaaeb4cd1b743e7a241c677e4 |
| institution | DOAJ |
| issn | 2949-754X |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials Today Catalysis |
| spelling | doaj-art-9620a5beaaeb4cd1b743e7a241c677e42025-08-20T03:01:42ZengElsevierMaterials Today Catalysis2949-754X2025-03-01810008110.1016/j.mtcata.2024.100081Polytriazine@CdS nanosheets as photosensitizer free catalyst for efficient photocatalytic reduction of CO2Jian Chen0Yixin Huang1Liu Wan2Cheng Du3Yan Zhang4Mingjiang Xie5Hubei Key Laboratory for Processing and Application of Catalytic Materials, Huanggang Normal University, Huanggang 438000, ChinaHubei Key Laboratory for Processing and Application of Catalytic Materials, Huanggang Normal University, Huanggang 438000, ChinaHubei Key Laboratory for Processing and Application of Catalytic Materials, Huanggang Normal University, Huanggang 438000, ChinaHubei Key Laboratory for Processing and Application of Catalytic Materials, Huanggang Normal University, Huanggang 438000, ChinaCorresponding authors.; Hubei Key Laboratory for Processing and Application of Catalytic Materials, Huanggang Normal University, Huanggang 438000, ChinaCorresponding authors.; Hubei Key Laboratory for Processing and Application of Catalytic Materials, Huanggang Normal University, Huanggang 438000, ChinaThe development of CdS-based photocatalysts with the appropriate bandgap structure, impressive optical response, and long-lasting reusability is both crucial and challenging. The heterogeneous catalyst, made up of polytriazine and CdS, demonstrates exceptional photogenerated charge separation and transfer capabilities, as well as superior CO2 adsorption abilities. In this study, we have shown that the CO2 photoassisted reduction efficiency of CdS nanosheets can be significantly improved through surface modification with a polytriazine polymer coating. The PP@CdS photocatalyst has been thoroughly characterized using techniques such as XRD, TEM, SEM, N2 adsorption-desorption, CO2 adsorption, DRS, XPS, and photoelectric performance tests. The catalytic performance of the PP@CdS was assessed through photoassisted CO2 reduction reactions under visible light irradiation in an aqueous medium at 25 ℃. Owing to its enhanced CO2 adsorption capacity and the efficient separation and utilization of photogenerated electrons, the PP@CdS photocatalyst demonstrated a CO yield (6.7 μmol/g/h) 1.3 times greater and a CH4 yield (4.2 μmol/g/h) 1.3 times higher than that of bare CdS nanosheets. Furthermore, the PP@CdS photocatalyst demonstrated outstanding reusability in CO2 reduction reactions. This study presents a novel approach to enhancing the CO2 adsorption capacity and modulating the bandgap structure of polymer-coated semiconductor materials.http://www.sciencedirect.com/science/article/pii/S2949754X24000437PolytriazineCdS nanosheetsPhotoassited CO2 reduction reactionsIon exchange method |
| spellingShingle | Jian Chen Yixin Huang Liu Wan Cheng Du Yan Zhang Mingjiang Xie Polytriazine@CdS nanosheets as photosensitizer free catalyst for efficient photocatalytic reduction of CO2 Materials Today Catalysis Polytriazine CdS nanosheets Photoassited CO2 reduction reactions Ion exchange method |
| title | Polytriazine@CdS nanosheets as photosensitizer free catalyst for efficient photocatalytic reduction of CO2 |
| title_full | Polytriazine@CdS nanosheets as photosensitizer free catalyst for efficient photocatalytic reduction of CO2 |
| title_fullStr | Polytriazine@CdS nanosheets as photosensitizer free catalyst for efficient photocatalytic reduction of CO2 |
| title_full_unstemmed | Polytriazine@CdS nanosheets as photosensitizer free catalyst for efficient photocatalytic reduction of CO2 |
| title_short | Polytriazine@CdS nanosheets as photosensitizer free catalyst for efficient photocatalytic reduction of CO2 |
| title_sort | polytriazine cds nanosheets as photosensitizer free catalyst for efficient photocatalytic reduction of co2 |
| topic | Polytriazine CdS nanosheets Photoassited CO2 reduction reactions Ion exchange method |
| url | http://www.sciencedirect.com/science/article/pii/S2949754X24000437 |
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