SERS Sensing Properties of New Graphene/Gold Nanocomposite
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials
2.2. Synthesis of G-NH2
2.3. Synthesis of Au NPs by PLAL
2.4. Synthesis of G-NH2/Au
2.5. Preparation of G-NH2/Au SERS Platform
2.6. Samples Characterization
3. Results
3.1. G-NH2/Au SERS Platform
3.2. Characterization of Graphene/Gold Nanocomposite (G-NH2/Au)
3.3. SERS Properties of G-NH2/Au Platform
4. Discussion
5. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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Atomic Content Percentage Determined by XPS Analysis | N 1s Content Percentage Determined by Deconvolution of XPS N 1s Band | |||||
---|---|---|---|---|---|---|
Sample | Au | C | O | N | N 1s (N=C, NH3+) | N 1s (NO2) |
G-MNPO | - | 74.8 | 19.0 | 6.2 | 58.82 | 41.18 |
G-NH2 | - | 89.3 | 7.4 | 3.3 | 79.95 | 20.05 |
G-NH2/Au | 0.5 | 89.0 | 9.4 | 1.1 | 83.66 | 16.34 |
Weight content percentage calculated by XPS values | ||||||
G-NH2/Au | 7.5 | 80.2 | 11.3 | 1.2 |
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Neri, G.; Fazio, E.; Mineo, P.G.; Scala, A.; Piperno, A. SERS Sensing Properties of New Graphene/Gold Nanocomposite. Nanomaterials 2019, 9, 1236. https://doi.org/10.3390/nano9091236
Neri G, Fazio E, Mineo PG, Scala A, Piperno A. SERS Sensing Properties of New Graphene/Gold Nanocomposite. Nanomaterials. 2019; 9(9):1236. https://doi.org/10.3390/nano9091236
Chicago/Turabian StyleNeri, Giulia, Enza Fazio, Placido Giuseppe Mineo, Angela Scala, and Anna Piperno. 2019. "SERS Sensing Properties of New Graphene/Gold Nanocomposite" Nanomaterials 9, no. 9: 1236. https://doi.org/10.3390/nano9091236