Study of the adsorption-desorption of Cu2+, Cd2+ and Zn2+ in single and binary aqueous solutions using oxygenated carbons prepared by Microwave Technology
| Autor: | Jose Rene Rangel-Mendez, Rigoberto Tovar-Gómez, Miguel A. Montes-Morán, Gabriela Durán-Jiménez, Virginia Hernández-Montoya |
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| Rok vydání: | 2016 |
| Předmět: |
Aqueous solution
Thermal desorption spectroscopy Potentiometric titration Inorganic chemistry chemistry.chemical_element 02 engineering and technology 010501 environmental sciences 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Adsorption chemistry Elemental analysis Materials Chemistry Water treatment Physical and Theoretical Chemistry 0210 nano-technology Porosity Carbon Spectroscopy 0105 earth and related environmental sciences |
| Zdroj: | Journal of Molecular Liquids. 220:855-864 |
| ISSN: | 0167-7322 |
| Popis: | In the present work was studied the adsorption-desorption of heavy metals from aqueous solutions using carbonaceous materials prepared with a technology that combines radiant and microwave heating. Three optimum carbons O-Cu, O-Cd and O-Zn were prepared and characterized using elemental analysis, potentiometric titration, nitrogen adsorption isotherms at − 196 °C, SEM/EDX analysis, and temperature programmed desorption (TPD). The three optimum carbons had very high oxygen contents mainly ascribed to surface functional groups of acidic nature. In contrast, the porosity of the carbons was very limited with specific surface areas being |
| Databáze: | OpenAIRE |
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