Polydopamine-Mediated Ag and ZnO as an Active and Recyclable SERS Substrate for Rhodamine B with Significantly Improved Enhancement Factor and Efficient Photocatalytic Degradation
We demonstrate the development of an active multicomponent Ag/PDA/ZnO@GMF surface-enhanced Raman scattering (SERS) substrate via introducing bio-inspired polydopamine (PDA) in between a noble metal (AgNPs) and ZnO nanorods. The insertion of PDA enabled efficient charge redistribution between metal a...
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MDPI AG
2021-05-01
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| Online Access: | https://www.mdpi.com/2076-3417/11/11/4914 |
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| author | Hsien-Kuo Chin Pei-Ying Lin Jyunde Chen Rajendranath Kirankumar Zhi-Hong Wen Shuchen Hsieh |
| author_facet | Hsien-Kuo Chin Pei-Ying Lin Jyunde Chen Rajendranath Kirankumar Zhi-Hong Wen Shuchen Hsieh |
| author_sort | Hsien-Kuo Chin |
| collection | DOAJ |
| description | We demonstrate the development of an active multicomponent Ag/PDA/ZnO@GMF surface-enhanced Raman scattering (SERS) substrate via introducing bio-inspired polydopamine (PDA) in between a noble metal (AgNPs) and ZnO nanorods. The insertion of PDA enabled efficient charge redistribution between metal and semiconductor through their aromatic cores. The substrate exhibited a high enhancement factor (EF) of 10<sup>10</sup> for the organic pollutant dye Rhodamine B (RhB). Subsequent exposure of a RhB-loaded substrate to an external UV light source developed an efficient pathway for RhB degradation and replenished the substrate for multiple usage cycles with remarkable photostability. Thus, enhanced performance of the substrate in terms of light-harvesting capability and high charge-separation efficiency was observed. In addition, the much larger surface area of the branched ZnO nanostructures served as a template for PDA assisted synthesis and controlled deposition of AgNPs, which further improved the SERS effect. Our work seeks to understand the contributions of the noble metal and semiconductor components and the synergistic effects of combining them with a facile charge transport medium to enable the fabrication of highly efficient SERS substrates for use in industrial and environmental applications. |
| first_indexed | 2024-03-10T11:00:48Z |
| format | Article |
| id | doaj.art-ba1a6b6264174bf99272205bb130c6a5 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T11:00:48Z |
| publishDate | 2021-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-ba1a6b6264174bf99272205bb130c6a52023-11-21T21:34:25ZengMDPI AGApplied Sciences2076-34172021-05-011111491410.3390/app11114914Polydopamine-Mediated Ag and ZnO as an Active and Recyclable SERS Substrate for Rhodamine B with Significantly Improved Enhancement Factor and Efficient Photocatalytic DegradationHsien-Kuo Chin0Pei-Ying Lin1Jyunde Chen2Rajendranath Kirankumar3Zhi-Hong Wen4Shuchen Hsieh5Division of Cardiovascular Surgery, Department of Surgery, Kaohsiung Armed Forces General Hospital, Kaohsiung 80424, TaiwanDepartment of Chemistry, National Sun Yat-sen University, Kaohsiung 80424, TaiwanDepartment of Chemistry, National Sun Yat-sen University, Kaohsiung 80424, TaiwanDepartment of Chemistry, National Sun Yat-sen University, Kaohsiung 80424, TaiwanDepartment of Marine Biotechnology and Resources, National Sun Yat-Sen University, Kaohsiung 80424, TaiwanDepartment of Chemistry, National Sun Yat-sen University, Kaohsiung 80424, TaiwanWe demonstrate the development of an active multicomponent Ag/PDA/ZnO@GMF surface-enhanced Raman scattering (SERS) substrate via introducing bio-inspired polydopamine (PDA) in between a noble metal (AgNPs) and ZnO nanorods. The insertion of PDA enabled efficient charge redistribution between metal and semiconductor through their aromatic cores. The substrate exhibited a high enhancement factor (EF) of 10<sup>10</sup> for the organic pollutant dye Rhodamine B (RhB). Subsequent exposure of a RhB-loaded substrate to an external UV light source developed an efficient pathway for RhB degradation and replenished the substrate for multiple usage cycles with remarkable photostability. Thus, enhanced performance of the substrate in terms of light-harvesting capability and high charge-separation efficiency was observed. In addition, the much larger surface area of the branched ZnO nanostructures served as a template for PDA assisted synthesis and controlled deposition of AgNPs, which further improved the SERS effect. Our work seeks to understand the contributions of the noble metal and semiconductor components and the synergistic effects of combining them with a facile charge transport medium to enable the fabrication of highly efficient SERS substrates for use in industrial and environmental applications.https://www.mdpi.com/2076-3417/11/11/4914zinc oxidepolydopaminesurface-enhanced Raman scatteringRhodamine Bphotocatalytic degradation |
| spellingShingle | Hsien-Kuo Chin Pei-Ying Lin Jyunde Chen Rajendranath Kirankumar Zhi-Hong Wen Shuchen Hsieh Polydopamine-Mediated Ag and ZnO as an Active and Recyclable SERS Substrate for Rhodamine B with Significantly Improved Enhancement Factor and Efficient Photocatalytic Degradation Applied Sciences zinc oxide polydopamine surface-enhanced Raman scattering Rhodamine B photocatalytic degradation |
| title | Polydopamine-Mediated Ag and ZnO as an Active and Recyclable SERS Substrate for Rhodamine B with Significantly Improved Enhancement Factor and Efficient Photocatalytic Degradation |
| title_full | Polydopamine-Mediated Ag and ZnO as an Active and Recyclable SERS Substrate for Rhodamine B with Significantly Improved Enhancement Factor and Efficient Photocatalytic Degradation |
| title_fullStr | Polydopamine-Mediated Ag and ZnO as an Active and Recyclable SERS Substrate for Rhodamine B with Significantly Improved Enhancement Factor and Efficient Photocatalytic Degradation |
| title_full_unstemmed | Polydopamine-Mediated Ag and ZnO as an Active and Recyclable SERS Substrate for Rhodamine B with Significantly Improved Enhancement Factor and Efficient Photocatalytic Degradation |
| title_short | Polydopamine-Mediated Ag and ZnO as an Active and Recyclable SERS Substrate for Rhodamine B with Significantly Improved Enhancement Factor and Efficient Photocatalytic Degradation |
| title_sort | polydopamine mediated ag and zno as an active and recyclable sers substrate for rhodamine b with significantly improved enhancement factor and efficient photocatalytic degradation |
| topic | zinc oxide polydopamine surface-enhanced Raman scattering Rhodamine B photocatalytic degradation |
| url | https://www.mdpi.com/2076-3417/11/11/4914 |
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