New photocatalytic materials obtained from the recycling of alkaline and Zn/C spent batteries
Several phases with variable stoichiometry ZnxMn3-xO4 (with x = 0.25, 0.85 and 1) and ZnO have been obtained from the black mass, a widely generated residue of wasted alkaline batteries. The obtained samples have been characterized by X-ray diffraction (XRD) and Raman spectroscopy showing results co...
| Autores: | , , , , , , |
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| Tipo de documento: | artigo |
| Data de publicação: | 2019 |
| País: | España |
| Recursos: | Universidad Complutense de Madrid (UCM) |
| Repositório: | Docta Complutense |
| Idioma: | inglês |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/13591 |
| Acesso em linha: | https://hdl.handle.net/20.500.14352/13591 |
| Access Level: | Acceso aberto |
| Palavra-chave: | 538.9 Surface optical phonons Zno Manganese Nanoparticles Degradation Raman Solar Zinc Dyes Spent batteries Photocatalytic materials Zn and Mn oxides Methylene blue Rhodamine B Física de materiales Física del estado sólido 2211 Física del Estado Sólido |
| Resumo: | Several phases with variable stoichiometry ZnxMn3-xO4 (with x = 0.25, 0.85 and 1) and ZnO have been obtained from the black mass, a widely generated residue of wasted alkaline batteries. The obtained samples have been characterized by X-ray diffraction (XRD) and Raman spectroscopy showing results consistent with the stoichiometry obtained from chemical analysis. The study of the degradation of methylene blue (MB) and rhodamine B (RhB) under UV radiation demonstrates the photocatalytic behavior in all samples obtained, reaching degradation percentages higher than 70% and 50%, respectively. |
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