Three-dimensional open concave surface-enhanced Raman scattering sensor based on the $ SiO_{2} $/CNTs/AgNPs to detect the phenol red
Surface-enhanced Raman scattering (SERS) features a unique fingerprint spectrum for fast and highly sensitive non-destructive detection without sample pretreatment. Aiming at the problem of few “hot spot” and uneven distribution of traditional SERS substrate, in this work, a surface-enhanced Raman substrate of silica/carbon nanotubes/silver nanoparticles ($ SiO_{2} $/CNTs/AgNPs) with high on all sides and low in the middle was synthesized by hydrothermal synthesis. The AgNPs were characterized by transmission electron microscopy (TEM), and the average diameter was 38 nm to 63 nm. The substrate exhibited high sensitivity, stability, and uniformity with a detection limit of $ 10^{−12} $ M for rhodamine 6G (R6G). Furthermore, we conducted an in-depth research on the enhancement contribution of the substrate by finite-difference time-domain (FDTD); the simulation results were in good agreement with the experimental results. Finally, the substrate was used for the detection of phenol red in water; the results showed that the Raman intensity was exponentially related to the concentration of phenol red solution with the coefficient of determination R2 = 0.99991, which provided a new method for detecting water pollutants. Graphical Abstract.
| Medienart: |
Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:25 |
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| Enthalten in: |
Journal of nanoparticle research - 25(2023), 2 vom: Feb. |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Ding, Jianjun [VerfasserIn] |
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| Links: |
Volltext [lizenzpflichtig] |
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| BKL: | |
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| Themen: |
Phenol red |
| Anmerkungen: |
© The Author(s), under exclusive licence to Springer Nature B.V. 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. |
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| doi: |
10.1007/s11051-023-05684-8 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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OLC2133834753 |
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| 520 | |a Surface-enhanced Raman scattering (SERS) features a unique fingerprint spectrum for fast and highly sensitive non-destructive detection without sample pretreatment. Aiming at the problem of few “hot spot” and uneven distribution of traditional SERS substrate, in this work, a surface-enhanced Raman substrate of silica/carbon nanotubes/silver nanoparticles ($ SiO_{2} $/CNTs/AgNPs) with high on all sides and low in the middle was synthesized by hydrothermal synthesis. The AgNPs were characterized by transmission electron microscopy (TEM), and the average diameter was 38 nm to 63 nm. The substrate exhibited high sensitivity, stability, and uniformity with a detection limit of $ 10^{−12} $ M for rhodamine 6G (R6G). Furthermore, we conducted an in-depth research on the enhancement contribution of the substrate by finite-difference time-domain (FDTD); the simulation results were in good agreement with the experimental results. Finally, the substrate was used for the detection of phenol red in water; the results showed that the Raman intensity was exponentially related to the concentration of phenol red solution with the coefficient of determination R2 = 0.99991, which provided a new method for detecting water pollutants. Graphical Abstract | ||
| 650 | 4 | |a Surface-enhanced Raman scattering | |
| 650 | 4 | |a Sensing mechanism | |
| 650 | 4 | |a Silver nanoparticles | |
| 650 | 4 | |a Single-walled carbon nanotubes | |
| 650 | 4 | |a Phenol red | |
| 700 | 1 | |a Ye, Li |4 aut | |
| 700 | 1 | |a Su, Tong |4 aut | |
| 700 | 1 | |a Guo, Naiyu |4 aut | |
| 700 | 1 | |a Yu, Linbo |4 aut | |
| 700 | 1 | |a Miao, Longxin |4 aut | |
| 700 | 1 | |a Cao, Mian |4 aut | |
| 700 | 1 | |a Sun, Chao |4 aut | |
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