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Effect of outgassing temperature on the performance of porous materials

AutorFigini-Albisetti, Alessandro; Fernández Velasco, Leticia ; Parra Soto, José Bernardo ; Ovín Ania, María Concepción
Palabras clavePorous materials
Outgassing temperature
Gas adsorption
Wastewater treatment
Fecha de publicación15-jun-2010
CitaciónApplied Surface Science 256(17): 5182-5186 (2010)
Resumen[EN] This work illustrates the consequences of an inadequate outgassing temperature of porous materials of different nature (zeolites and activated carbons) on their performance on gas storage and wastewater remediation. Outgassing at low temperature in thermally stable materials leads to an incomplete cleaning of the porous surface; as a result, the gas storage ability based on adsorption isotherms is underestimated. In contrast, outgassing at elevated temperature in temperature-sensitive materials provokes irreversible changes in their composition and structure, which also affects strongly their stability and performance. Two examples illustrating wrong interpretation data on CO2 capture on zeolites and wastewater treatment using activated carbons are addressed. The results show how the performance of a given material can be significantly modified or misunderstood after the outgassing pretreatment.
Versión del editorhttp://dx.doi.org/10.1016/j.apsusc.2009.12.090
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