Full
FU Ziwei (1993-), female, Master candidate, Assistant Engineer. E-mail: 2690258941@qq.com
Outline
The porous α-Fe2O3 was used as solid support, and silver nanoparticles were integrating into the pore of α-Fe2O3 through hydrothermal synthesis. Four different amounts of AgNO3 were added into the growth media for optimizing the surface-enhanced Raman scattering (SERS) performance of Fe2O3-Ag. The structure and component of the Fe2O3-Ag nanocomposites were characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, and N2 adsorption. The experimental results show that the BET surface area and enhancement factor of the Fe2O3-Ag nanocomposite are 26.57 m2/g and 102-103 respectively, when the dosage of AgNO3 is 6.5% (in mass), exhibiting the best SERS enhancement. The Fe2O3-Ag nanocomposite provides not only the SERS enhancement but also a good adsorption performance, which could be further used for absorption and detection of various samples.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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