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Adsorção de chumbo, cádmio e prata em óxido de nióbio (V) hidratado preparado pelo método da precipitação em solução homogênea

2011; Brazilian Chemical Society; Volume: 34; Issue: 1 Linguagem: Inglês

10.1590/s0100-40422011000100020

ISSN

1678-7064

Autores

Gerônimo Virginio Tagliaferro, Paulo Pereira, Liana Álvares Rodrigues, M. Silva,

Tópico(s)

Water Quality and Pollution Assessment

Resumo

HYDROUS NIOBIUM OXIDE PREPARED BY HOMOGENEOUS SOLUTION METHOD.This paper describes the adsorption of heavy metals ions from aqueous solution by hydrous niobium oxide.Three heavy metals were selected for this study: cadmium, lead and silver.Adsorption isotherms were well fitted by Langmuir model.Maximum adsorption capacity (Q 0 ) for Pb 2 + , Ag + and Cd 2 + was found to be 452.5, 188.68 and 8.85 mg g -1 , respectively.

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