Synthesis of Ag-doped ZnO nanoparticles for the photocatalytic degradation of phenol and dyes
The morphological, optoelectronic, and dye degrading properties of Ag doped ZnONPs are reported herein which were fabricated using different concentrations of Ag and a hydrothermal method. The size of ZnONPs ranged from 33 to 45 nm. UV-Visible spectroscopy revealed a red- shift of the absorbance spe...
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| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2025-01-01
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| Series: | E3S Web of Conferences |
| Subjects: | |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/19/e3sconf_icsget2025_05001.pdf |
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| Summary: | The morphological, optoelectronic, and dye degrading properties of Ag doped ZnONPs are reported herein which were fabricated using different concentrations of Ag and a hydrothermal method. The size of ZnONPs ranged from 33 to 45 nm. UV-Visible spectroscopy revealed a red- shift of the absorbance spectra confirming band gap reduction after Ag doping. The four luminescence peaks for the ZnONPs included a blue luminescence peak between 440 and 470 nm, a green luminescence peak between 470 and 570, a yellow luminescence peak between 570 and 585 nm, and a red luminescence peak between 585 and 780 nm. Superior photocatalytic dye degradation was noted where the 5% Ag-doped ZnONPs exhibited 99.12 % photocatalytic phenol degradation after 24 h with a rate constant equivalent to 0.2099 k (min-1) while the rate constants of 2.5922 and 2.3392 k (min-1) for the degradation of Rhodamine B and methylene blue dyes, respectively. Hence, the present Ag-doped ZnONPs should be further studied for diverse photocatalytic applications. |
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| ISSN: | 2267-1242 |