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https://locus.ufv.br//handle/123456789/17464
Tipo: | Artigo |
Título: | Removal of chromium (VI) from aqueous solutions using the calcined magnetic composite hydrotalcite-iron oxide: kinetic and thermodynamic equilibrium studies |
Autor(es): | Bellato, Carlos Roberto Pessoa, Kenia Dias Fontes, Maurício Paulo Ferreira Toledo, Thiago Vinícius |
Abstract: | In this work, hydrotalcite, a layered double hydroxide, had its ion exchange properties combined with the magnetic properties of iron oxide to produce a magnetic adsorbent, HT-Fe 500. These magnetic composites can be used as adsorbents for anionic contaminants in water and subsequently removed from the medium by a simple magnetic process. Removal of chromium (VI) from aqueous solutions using HT-Fe 500 was achieved using batch adsorption experiments. The adsorption capacity, calculated with the Langmuir-Freundlich model showed to be dependent on temperature, reaching values of 25.93 and 48.31 mg g-1, respectively, for temperatures of 25 and 30 ºC |
Palavras-chave: | Chromium (VI) Adsorption Hydrotalcite-iron oxide composite |
Editor: | Química Nova |
Tipo de Acesso: | Open Access |
URI: | http://dx.doi.org/10.1590/S0100-40422013000300012 http://www.locus.ufv.br/handle/123456789/17464 |
Data do documento: | 23-Jan-2013 |
Aparece nas coleções: | Artigos |
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artigo.pdf | Texto completo | 739,3 kB | Adobe PDF | Visualizar/Abrir |
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