Zeolite supported zinc oxide nanoparticles composite Synthesis, characterization, and photocatalytic activity for methylene blue dye degradation /
In the first stage of this study, zinc oxide nanoparticles (ZnO-NPs) were synthesized. The synthesized nanoparticles were characterized by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), transmission electron microscopy (TEM), selected area diffraction (SAED), and X-r...
Elmentve itt :
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| Dokumentumtípus: | Cikk |
| Megjelent: |
2024
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| Sorozat: | DESALINATION AND WATER TREATMENT
319 |
| Tárgyszavak: | |
| doi: | 10.1016/j.dwt.2024.100433 |
| mtmt: | 35863881 |
| Online Access: | http://publicatio.bibl.u-szeged.hu/36351 |
| Tartalmi kivonat: | In the first stage of this study, zinc oxide nanoparticles (ZnO-NPs) were synthesized. The synthesized nanoparticles were characterized by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), transmission electron microscopy (TEM), selected area diffraction (SAED), and X-ray diffraction analyses (XRD). Subsequently, a composite material was obtained by coating ZnO-NPs with zeolite from R & aacute;tka, Hungary. The photocatalytic degradation of ZnO-NPs using Hungarian zeolite in the ZnO-Zeolite composite was investigated. The objective was to evaluate the efficacy of the ZnO-Zeolite composite in degrading methylene blue (MB) under ultraviolet-visible spectroscopy (UV). It was observed that the composite materials were influenced by the light source. The degradation rates showed that the ZnO-Zeolite composite with 100 mg L-1 MB achieved the highest photodegradation rate of 96.70 % when exposed to sunlight for 210 min. These findings indicate that the ZnO-Zeolite composite with a 1:5 ratio has the potential to significantly increase the photocatalytic activity, achieving a high yield of 96.70 % compared to raw zeolite. In the last stage of the study, equilibrium, kinetic, and thermodynamic studies were carried out. The photocatalytic maximum adsorption capacity of MB for the ZnO-Zeolite composite was calculated as qm= 41.32 mg g-1. In the adsorption and kinetic studies of the obtained composite, the best results were obtained with the Langmuir adsorption isotherm and pseudo-second-order kinetics. A desorption study has been conducted, and it has been determined that the composite can be reused for up to 7 cycles. |
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| Terjedelem/Fizikai jellemzők: | 11 |
| ISSN: | 1944-3994 |