Determination of Copper in Different Ethanolic Matrices Using a Chloropropyl Silica Gel Modified with a Nanostructured Cubic Octa(3-aminopropyl)octasilsesquioxane

Autor(es)

Do Carmo, Devaney Ribeiro ; Bicalho, Urquisa De Oliveira ; Silveira, Tayla Fernanda A. ; Dias Filho, Newton Luiz ; Paim, Leonardo Lataro

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF CHEMISTRY; v. 2013, p. 11-pg., 2013-01-01.

Resumo

The chloropropyl silica gel was modified with octa(3-aminopropyl)octasilsesquioxane and characterized by Fourier transform infrared (FTIR) spectroscopy, nuclear magnetic resonance (NMR), spectroscopies, and surface and area porosity. The specific sorption capacity of metallic ions (Cu2+ and Ni2+) increases in the following solvent order: water < ethanol 42% < ethanol < ketone. The high values of the constant (K) in the order of 10(3) L mol(-1) suggested the high adsorbent capacity of the modified silica (SGAPC) for Cu2+ and Ni2+. SGAPC was applied to a separation column and shows recoveries of around 100% of copper in samples of sugar cane spirit, vodka, ginger brandy, and ethanol fuel. (AU)

• Processo FAPESP: 05/52173-0 - Dendrimeros de silsesquioxanos e hexadecaamino poli(propileno) imina modificados com triclorotriazina: sintese, caracterizacao e aplicacoes.
• Beneficiário: Leonardo Lataro Paim
• Modalidade de apoio: Bolsas no Brasil - Mestrado
• Processo FAPESP: 03/12882-6 - Dendrímeros de silsesquioxanos e octaamino poli(propileno) imina modificados com triclorotriazina: síntese, caracterização e aplicações
• Beneficiário: Devaney Ribeiro Do Carmo
• Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores