Do Carmo, Devaney Ribeiro [UNESP]De Oliveira Bicalho, Urquisa [UNESP]Silveira, Tayla Fernanda A. [UNESP]Dias Filho, Newton Luiz [UNESP]Lataro Paim, Leonardo [UNESP]2014-05-272014-05-272013-07-19Journal of Chemistry.2090-90632090-9071http://hdl.handle.net/11449/76010The 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 103 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. © 2013 Devaney Ribeiro Do Carmo et al.engArtigo10.1155/2013/509341WOS:000320804000001Acesso aberto2-s2.0-848801494782-s2.0-84880149478.pdf054504672051953616147456978700031509480515046572