Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/41885
metadata.artigo.dc.title: A friendly environmental material: iron oxide dispersed over activated carbon from coffee husk for organic pollutants removal
metadata.artigo.dc.creator: Gonçalves, Maraísa
Guerreiro, Mário César
Oliveira, Luiz Carlos Alves de
Castro, Cinthia Soares de
metadata.artigo.dc.subject: Goethite
Activated carbon
Environmental application
Oxidation
Pollutants
metadata.artigo.dc.publisher: Elsevier
metadata.artigo.dc.date.issued: 30-Sep-2013
metadata.artigo.dc.identifier.citation: GONÇALVES, M. et al. A friendly environmental material: iron oxide dispersed over activated carbon from coffee husk for organic pollutants removal. Journal of Environmental Management, [S.l.], v. 127, p. 206-211, Sept. 2013. DOI: 10.1016/j.jenvman.2013.05.017.
metadata.artigo.dc.description.abstract: A friendly environmental material for organic contaminants removal was prepared in this work: small particles of iron oxide dispersed over activated carbon from coffee waste for Fenton-like application. The materials were characterized by means of XRD, N2 physisorption, Mössbauer spectroscopy and H2 pulse titration. The composites showed very good catalytic performances for methylene blue organic dye oxidation. The small goethite particles are the predominant iron oxide phase in the composites. The apparent surface area is quite high and is not very affected after iron impregnation. ESI-MS studies revealed that the dye removal occurs through a Fenton-type system by the composite whereas for the activated carbon the dye removal occurs mainly via adsorption. The iron leaching from the catalysts was negligible, less than 0.5 ppm, which evidences the occurrence of a heterogenous oxidation process. The catalyst was very active for methylene blue oxidation and could be repeatedly used for at least 5 cycles. The catalyst was also active in the oxidation of other organic compounds, such as caffeine and atrazine.
metadata.artigo.dc.identifier.uri: https://www.sciencedirect.com/science/article/pii/S0301479713003459
http://repositorio.ufla.br/jspui/handle/1/41885
metadata.artigo.dc.language: en_US
Appears in Collections:DQI - Artigos publicados em periódicos

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