Fabrication, Characterization and Photocatalytic Activity of Copper Oxide Nanowires Formed by Anodization of Copper Foams
| Autor: | Alaa M. Abd-Elnaiem, Moustafa A. Abdel-Rahim, Ahmed Mohamed, Kristina Mojsilović, A.Y. Abdel-Latief, Wojciech J. Stępniowski |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
anodization
Cuprite Copper oxide Technology Materials science paramelconite chemistry.chemical_element 02 engineering and technology 010402 general chemistry 01 natural sciences Organic compound Article Catalysis chemistry.chemical_compound copper oxides nanostructures General Materials Science cuprite chemistry.chemical_classification Microscopy QC120-168.85 Anodizing QH201-278.5 Malachite photocatalytic decolorization 021001 nanoscience & nanotechnology Engineering (General). Civil engineering (General) Copper 0104 chemical sciences TK1-9971 malachite chemistry Chemical engineering nanowires FTIR Descriptive and experimental mechanics visual_art tenorite visual_art.visual_art_medium Photocatalysis Electrical engineering. Electronics. Nuclear engineering TA1-2040 0210 nano-technology |
| Zdroj: | Materials, Vol 14, Iss 5030, p 5030 (2021) Materials Volume 14 Issue 17 |
| ISSN: | 1996-1944 |
| Popis: | In recent paper anodization of copper foams in 0.1 M K2CO3 is reported. Anodization was performed in the voltage range of 5–25 V and in all the cases oxides with a developed surface area were obtained. However, anodizing only at 20 and 25 V resulted in the formation of nanostruc-tures. In all the cases, the products of anodizing consisted of crystalline phases like cuprite (Cu2O), tenorite (CuO), parameconite (Cu4O3) as well as spertiniite (Cu(OH)2). Copper foams after ano-dizing were applied as catalysts in the photocatalytic decolorization of a model organic compound such as methylene blue. The highest photocatalytic activity was observed for samples anodized at 25 V and closely followed by samples anodized at 5 V. The anodized copper foams proved to be a useful material in enhancing the photocatalytic efficiency of organic dye decomposition. |
| Databáze: | OpenAIRE |
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