Use este identificador para citar ou linkar para este item:
https://locus.ufv.br//handle/123456789/19160
Tipo: | Artigo |
Título: | Use of iron and bio-oil wastes to produce highly dispersed Fe/C composites for the photo-Fenton reaction |
Autor(es): | Mendonça, Fernanda Gomes de Rosmaninho, Marcelo Gonçalves Fonseca, Philipe Xavier da Soares, Ricardo Reis Ardisson, José Domingos Tristão, Juliana Cristina Lago, Rochel Montero |
Abstract: | This work describes the synthesis, characterization, and application of an active heterogeneous photo-Fenton system obtained from two different wastes, i.e., laterite (an iron mining waste) and the acid aqueous fraction (AAF) from bio-oil production. AAF with high acidity (ca. 3 molH+ L−1) and organic concentration (25 wt.%) obtained from biomass flash pyrolysis was used for the efficient extraction of Fe3+ from laterite waste. After extraction, the mixture Fe3+/AAF was dried and treated at different temperatures, i.e., 500, 650, and 800 °C, to obtain Fe/C reactive composites. Mössbauer, XRD, TG, elemental analyses, and SEM/EDS showed the presence of highly disperse Fe oxide nanoparticles at 500 and 650 °C and Fe0 particles in the material obtained at 800 °C with carbon contents varying from 74 to 80 %. The three composites were tested as heterogeneous catalysts in the photo-Fenton reaction for the oxidation of the model dye contaminant methylene blue, showing high activities at neutral pH. |
Palavras-chave: | Photo-Fenton Laterite Bio-oil Acid aqueous fraction Fe/C composites |
Editor: | Environmental Science and Pollution Research |
Tipo de Acesso: | Springer-Verlag Berlin Heidelberg |
URI: | https://link.springer.com/article/10.1007%2Fs11356-016-6480-0 http://www.locus.ufv.br/handle/123456789/19160 |
Data do documento: | 14-Mar-2016 |
Aparece nas coleções: | Artigos |
Arquivos associados a este item:
Arquivo | Descrição | Tamanho | Formato | |
---|---|---|---|---|
artigo.pdf Until 2100-12-31 | texto completo | 823,46 kB | Adobe PDF | Visualizar/Abrir ACESSO RESTRITO |
Os itens no repositório estão protegidos por copyright, com todos os direitos reservados, salvo quando é indicado o contrário.