Molecular Linking Selectivity on Self-Assembled Metal-Semiconductor Nano-Hybrid Systems
Plasmonics nanoparticles gained prominence in the last decade in fields of photonics, solar energy conversion and catalysis. It has been shown that anchoring the plasmonics nanoparticles on semiconductors via a molecular linker reduces band bending and increases hot carriers’ lifetime, which is esse...
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| Format: | Article |
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MDPI AG
2020-07-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/10/7/1378 |
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| author | Thinh Luong The Nguyen Alba Gascón Nicolás Tomas Edvinsson Jie Meng Kaibo Zheng Mohamed Abdellah Jacinto Sá |
| author_facet | Thinh Luong The Nguyen Alba Gascón Nicolás Tomas Edvinsson Jie Meng Kaibo Zheng Mohamed Abdellah Jacinto Sá |
| author_sort | Thinh Luong The Nguyen |
| collection | DOAJ |
| description | Plasmonics nanoparticles gained prominence in the last decade in fields of photonics, solar energy conversion and catalysis. It has been shown that anchoring the plasmonics nanoparticles on semiconductors via a molecular linker reduces band bending and increases hot carriers’ lifetime, which is essential for the development of efficient photovoltaic devices and photocatalytic systems. Aminobenzoic acid is a commonly used linker to connect the plasmonic metal to an oxide-based semiconductor. The coordination to the oxide was established to occur via the carboxylic functional group, however, it remains unclear what type of coordination that is established with the metal site. Herein, it is demonstrated that metal is covalently bonded to the linker via the amino group, as supported by Surface-Enhanced Resonant Raman and infrared spectroscopies. The covalent linkage increases significantly the amount of silver grafted, resulting in an improvement of the system catalytic proficiency in the 4-nitrophenol (4-NP) photoreduction. |
| first_indexed | 2024-03-10T18:27:32Z |
| format | Article |
| id | doaj.art-48f0652841d44bb8bfd0cfa79413fdf8 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-10T18:27:32Z |
| publishDate | 2020-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-48f0652841d44bb8bfd0cfa79413fdf82023-11-20T06:51:06ZengMDPI AGNanomaterials2079-49912020-07-01107137810.3390/nano10071378Molecular Linking Selectivity on Self-Assembled Metal-Semiconductor Nano-Hybrid SystemsThinh Luong The Nguyen0Alba Gascón Nicolás1Tomas Edvinsson2Jie Meng3Kaibo Zheng4Mohamed Abdellah5Jacinto Sá6Department of Chemistry—Ångström Laboratory, Uppsala University, P.O. Box 532, 751 20 Uppsala, SwedenDepartment of Chemistry—Ångström Laboratory, Uppsala University, P.O. Box 532, 751 20 Uppsala, SwedenDepartment of Materials Science and Engineering—Solid State Physics, Uppsala University, P.O. Box 35, 751 03 Uppsala, SwedenDepartment of Chemistry, Technical University of Denmark, DK-2800 Kongens Lyngby, DenmarkDepartment of Chemistry, Technical University of Denmark, DK-2800 Kongens Lyngby, DenmarkDepartment of Chemistry—Ångström Laboratory, Uppsala University, P.O. Box 532, 751 20 Uppsala, SwedenDepartment of Chemistry—Ångström Laboratory, Uppsala University, P.O. Box 532, 751 20 Uppsala, SwedenPlasmonics nanoparticles gained prominence in the last decade in fields of photonics, solar energy conversion and catalysis. It has been shown that anchoring the plasmonics nanoparticles on semiconductors via a molecular linker reduces band bending and increases hot carriers’ lifetime, which is essential for the development of efficient photovoltaic devices and photocatalytic systems. Aminobenzoic acid is a commonly used linker to connect the plasmonic metal to an oxide-based semiconductor. The coordination to the oxide was established to occur via the carboxylic functional group, however, it remains unclear what type of coordination that is established with the metal site. Herein, it is demonstrated that metal is covalently bonded to the linker via the amino group, as supported by Surface-Enhanced Resonant Raman and infrared spectroscopies. The covalent linkage increases significantly the amount of silver grafted, resulting in an improvement of the system catalytic proficiency in the 4-nitrophenol (4-NP) photoreduction.https://www.mdpi.com/2079-4991/10/7/1378nano-hybrid systemsself-assemblyfunctional groups selectivityspectroscopy |
| spellingShingle | Thinh Luong The Nguyen Alba Gascón Nicolás Tomas Edvinsson Jie Meng Kaibo Zheng Mohamed Abdellah Jacinto Sá Molecular Linking Selectivity on Self-Assembled Metal-Semiconductor Nano-Hybrid Systems Nanomaterials nano-hybrid systems self-assembly functional groups selectivity spectroscopy |
| title | Molecular Linking Selectivity on Self-Assembled Metal-Semiconductor Nano-Hybrid Systems |
| title_full | Molecular Linking Selectivity on Self-Assembled Metal-Semiconductor Nano-Hybrid Systems |
| title_fullStr | Molecular Linking Selectivity on Self-Assembled Metal-Semiconductor Nano-Hybrid Systems |
| title_full_unstemmed | Molecular Linking Selectivity on Self-Assembled Metal-Semiconductor Nano-Hybrid Systems |
| title_short | Molecular Linking Selectivity on Self-Assembled Metal-Semiconductor Nano-Hybrid Systems |
| title_sort | molecular linking selectivity on self assembled metal semiconductor nano hybrid systems |
| topic | nano-hybrid systems self-assembly functional groups selectivity spectroscopy |
| url | https://www.mdpi.com/2079-4991/10/7/1378 |
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