Ag Loading Enhanced Photocatalytic Activity of g-C3N4 Porous Nanosheets for Decomposition of Organic Pollutants
The g-C3N4 porous nanosheets with different loading amount of Ag nanoparticles (NPs) are successfully prepared by a simple liquid-phase reduction method. These Ag/g-C3N4 composites have an improved photocatalytic performance for decomposing organic pollutants compared with that of pure g-C3N4 nanosh...
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| Format: | Article |
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Frontiers Media S.A.
2019-04-01
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| Series: | Frontiers in Chemistry |
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| Online Access: | https://www.frontiersin.org/article/10.3389/fchem.2019.00091/full |
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| author | Kezhen Qi Kezhen Qi Yi Li Yubo Xie Shu-yuan Liu Kun Zheng Zhe Chen Ruidan Wang |
| author_facet | Kezhen Qi Kezhen Qi Yi Li Yubo Xie Shu-yuan Liu Kun Zheng Zhe Chen Ruidan Wang |
| author_sort | Kezhen Qi |
| collection | DOAJ |
| description | The g-C3N4 porous nanosheets with different loading amount of Ag nanoparticles (NPs) are successfully prepared by a simple liquid-phase reduction method. These Ag/g-C3N4 composites have an improved photocatalytic performance for decomposing organic pollutants compared with that of pure g-C3N4 nanosheets. Many measurements have been used for characterizing the samples, such as XRD, FTIR, UV-Vis DRS, PL, XPS, EDS, SEM, and TEM. In Ag/g-C3N4, the Ag NPs are uniformly coated on the g-C3N4 surface, the diameter is mainly in the range of 8~18 nanometers. Loading of Ag NPs expand the response to the visible light for g-C3N4 and increasing the producing rate of photogenerated e−-h+ pairs. The loading of silver NPs obviously enhances the photocatalytic activity of C3N4 nanosheets toward the Rhodamine B (RhB) decomposition under the simulated sunlight irradiation. With different loading amounts of Ag NPs, Ag/g-C3N4 (3 wt% of Ag) showed the highest photocatalytic activity for RhB decomposition among these as-prepared samples, which is 10 times of the rate of pure C3N4. Based on the experimental results, a possible photocatalytic mechanism for Ag/g-C3N4 is proposed. |
| first_indexed | 2024-04-12T11:12:34Z |
| format | Article |
| id | doaj.art-b18fc6d09b4d40f99810464c8cea4ba6 |
| institution | Directory Open Access Journal |
| issn | 2296-2646 |
| language | English |
| last_indexed | 2024-04-12T11:12:34Z |
| publishDate | 2019-04-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Chemistry |
| spelling | doaj.art-b18fc6d09b4d40f99810464c8cea4ba62022-12-22T03:35:35ZengFrontiers Media S.A.Frontiers in Chemistry2296-26462019-04-01710.3389/fchem.2019.00091422448Ag Loading Enhanced Photocatalytic Activity of g-C3N4 Porous Nanosheets for Decomposition of Organic PollutantsKezhen Qi0Kezhen Qi1Yi Li2Yubo Xie3Shu-yuan Liu4Kun Zheng5Zhe Chen6Ruidan Wang7Institute of Catalysis for Energy and Environment, College of Chemistry and Chemical Engineering, Shenyang Normal University, Shenyang, ChinaKey Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin, ChinaInstitute of Catalysis for Energy and Environment, College of Chemistry and Chemical Engineering, Shenyang Normal University, Shenyang, ChinaInstitute of Catalysis for Energy and Environment, College of Chemistry and Chemical Engineering, Shenyang Normal University, Shenyang, ChinaDepartment of pharmacology, Shenyang Medical College, Shenyang, ChinaDepartment of Hydrogen Energy, Faculty of Energy and Fuels, AGH University of Science and Technology, Kraków, PolandSchool of Material Science and Technology, Jilin Institute of Chemical Technology, Jilin City, ChinaInstitute of Catalysis for Energy and Environment, College of Chemistry and Chemical Engineering, Shenyang Normal University, Shenyang, ChinaThe g-C3N4 porous nanosheets with different loading amount of Ag nanoparticles (NPs) are successfully prepared by a simple liquid-phase reduction method. These Ag/g-C3N4 composites have an improved photocatalytic performance for decomposing organic pollutants compared with that of pure g-C3N4 nanosheets. Many measurements have been used for characterizing the samples, such as XRD, FTIR, UV-Vis DRS, PL, XPS, EDS, SEM, and TEM. In Ag/g-C3N4, the Ag NPs are uniformly coated on the g-C3N4 surface, the diameter is mainly in the range of 8~18 nanometers. Loading of Ag NPs expand the response to the visible light for g-C3N4 and increasing the producing rate of photogenerated e−-h+ pairs. The loading of silver NPs obviously enhances the photocatalytic activity of C3N4 nanosheets toward the Rhodamine B (RhB) decomposition under the simulated sunlight irradiation. With different loading amounts of Ag NPs, Ag/g-C3N4 (3 wt% of Ag) showed the highest photocatalytic activity for RhB decomposition among these as-prepared samples, which is 10 times of the rate of pure C3N4. Based on the experimental results, a possible photocatalytic mechanism for Ag/g-C3N4 is proposed.https://www.frontiersin.org/article/10.3389/fchem.2019.00091/fullAg nanoparticlesAg/g-C3N4photocatalytic activityorganic pollutantelectron-hole separationmodification |
| spellingShingle | Kezhen Qi Kezhen Qi Yi Li Yubo Xie Shu-yuan Liu Kun Zheng Zhe Chen Ruidan Wang Ag Loading Enhanced Photocatalytic Activity of g-C3N4 Porous Nanosheets for Decomposition of Organic Pollutants Frontiers in Chemistry Ag nanoparticles Ag/g-C3N4 photocatalytic activity organic pollutant electron-hole separation modification |
| title | Ag Loading Enhanced Photocatalytic Activity of g-C3N4 Porous Nanosheets for Decomposition of Organic Pollutants |
| title_full | Ag Loading Enhanced Photocatalytic Activity of g-C3N4 Porous Nanosheets for Decomposition of Organic Pollutants |
| title_fullStr | Ag Loading Enhanced Photocatalytic Activity of g-C3N4 Porous Nanosheets for Decomposition of Organic Pollutants |
| title_full_unstemmed | Ag Loading Enhanced Photocatalytic Activity of g-C3N4 Porous Nanosheets for Decomposition of Organic Pollutants |
| title_short | Ag Loading Enhanced Photocatalytic Activity of g-C3N4 Porous Nanosheets for Decomposition of Organic Pollutants |
| title_sort | ag loading enhanced photocatalytic activity of g c3n4 porous nanosheets for decomposition of organic pollutants |
| topic | Ag nanoparticles Ag/g-C3N4 photocatalytic activity organic pollutant electron-hole separation modification |
| url | https://www.frontiersin.org/article/10.3389/fchem.2019.00091/full |
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