Interaction of divalent cations with silica modified with histamine evaluated by adsorption and thermochemical data

Autor: Guilherme W. Tavares, Luclecia D. Nunes, Hernane T. Barcelos, Edesio F. C. Alcantara, Alexandre G.S. Prado
Rok vydání: 2011
Předmět:
Zdroj: Journal of Thermal Analysis and Calorimetry. 106:421-425
ISSN: 1572-8943
1388-6150
DOI: 10.1007/s10973-011-1541-6
Popis: Silica gel was modified by silanization reaction followed by functionalization of histamine in a heterogeneous route. These materials were characterized by elementary nitrogen and chloride analyses, porosity, thermogravimetry, and infrared. The functionalized surface adsorbed Cu(II), Co(II), Ni(II), and Zn(II) ions in an aqueous solution at 25 °C. The isotherms of adsorption are in accordance with Langmuir model and the surface presented a great potential to form complexes metal-surface in the chemical reason of 1:1.
Databáze: OpenAIRE