Extração de Al(III), Cr(III) e Fe(III) de meio etanólico usando o xerogel anilinapropilsílica

Química Nova

Flávio A. Pavan²  Tania M. H. Costa²  Edilson V. Benvenutti²  Rosângela A. Jacques¹  Manuela C. Córdova¹ 

[1] ,Universidade Federal do Rio Grande do Sul Instituto de Química Porto Alegre RS

关键词: sol-gel;    trivalent metal cations;    hybrid materials;   

DOI  :  10.1590/S0100-40422004000500010

来源: SciELO

【 摘 要 】

In this study, the preparation of the xerogel anilinepropylsilica is reported. The ability of the xerogel for extracting Al(III), Cr(III) and Fe(III) from ethanol was investigated at 25 ºC. The xerogel adsorption capacities were obtained from the adsorption isotherms by using the batch method. Flame atomic absorption spectrometry (FAAS) was used to estimate the concentration of metal ions in solution. The adsorption affinity follows the series Cr(III) > Fe(III) > Al(III) and the maximum adsorption capacities of the metal ions were 0.61, 0.52 and 0.43 mmol g-1, respectively.

【 授权许可】

CC BY-NC   
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