Synthesis and characterization of Fe3O4 and CdTe quantum dots anchored SnO2 nanofibers and SnO2 nanospheres for degradation and removal of two carcinogen substance
| Autor: | Pedram Afshar Nejad, Leila Fatolahi, Ali Fakhri, Mahsa Naji |
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| Rok vydání: | 2017 |
| Předmět: |
Photoluminescence
Materials science Scanning electron microscope Analytical chemistry 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Atomic and Molecular Physics and Optics Cadmium telluride photovoltaics 0104 chemical sciences Electronic Optical and Magnetic Materials Adsorption Quantum dot Nanofiber Electrical and Electronic Engineering 0210 nano-technology Photodegradation Nuclear chemistry BET theory |
| Zdroj: | Journal of Materials Science: Materials in Electronics. 28:16484-16492 |
| ISSN: | 1573-482X 0957-4522 |
| Popis: | The Fe3O4 quantum dots anchored SnO2 nanofibers (Fe3O4 QDs/SnO2 NFs) and CdTe quantum dots anchored SnO2 nanospheres have been prepared via hydrothermal method. The characteristic structure of Fe3O4 QDs/SnO2 NFs and CdTe QDs/SnO2 NSs was analyzed using several techniques such as X-ray diffraction, transmission and scanning electron microscopy, UV–Vis and photoluminescence spectroscopy, and N2 adsorption–desorption instruments. The average diameters of Fe3O4QDs/SnO2 NFs and CdTe QDs/SnO2 NSs were 7.25 and 3.75 nm, respectively. BET surface area of Fe3O4QDs/SnO2 NFs and CdTe QDs/SnO2 NSs has been found 53.064 and 148.59 m2/g, respectively. The Fe3O4 QDs/SnO2 NFs and CdTe QDs/SnO2 NSs sample were used for removal and photo-catalytic of carcinogenic compounds such as ethyl methanesulfonate (EMS) and N-nitrosonornicotine (NNN). The Fe3O4 QDs/SnO2 NFs and CdTe QDs/SnO2 NSs demonstrates up to 90 and 56% photo degradation and adsorption activity against EMS and NNN solution, respectively. Additionally, cytotoxicity test indicated that the prepared catalyst has low cytotoxic influences. The antibacterial activity of prepared catalyst has excellent effect against Staphylococcus aureus, and Pseudomonas aeruginosa. |
| Databáze: | OpenAIRE |
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