Non-resonant enhancement mechanism in SERS effect due to copper oxide quantum dots stabilized in synthetic zeolite F9-NaX
| Autor: | F.F. Castillón-Barraza, M. Flores-Acosta, Y. Delgado-Beleño, C.E. Martinez-Nuñez, N.S. Flores-López, M. Cortez-Valadez |
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| Rok vydání: | 2018 |
| Předmět: |
Copper oxide
Materials science 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences chemistry.chemical_compound Chemical bond chemistry Quantum dot Physical chemistry General Materials Science Density functional theory 0210 nano-technology Zeolite Structural unit |
| Zdroj: | Materials Chemistry and Physics. 211:150-159 |
| ISSN: | 0254-0584 |
| Popis: | This study shows the presence of SERS effect caused by the interaction of synthetic zeolite F9-NaX with stabilized CuO quantum dots. The quantum dots synthesized by the ion-exchange properties of the zeolite show a good size distribution, and a spheroidal shape of 4 nm approximately. The simulation of the structural unit of the zeolite (d4r-8T) and small clusters of (CuO)n performed with density functional theory (DFT), allowed to determine the non-resonant effects from the interaction between the zeolite and CuO as the main contribution to SERS effect by the chemical bonding effect (CBE). Quantum dots CuO show good antibacterial activity against Gran positive and Gran negative bacteria. |
| Databáze: | OpenAIRE |
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