Interactions of xanthines with activated carbon I. Kinetics of the adsorption process

Navarrete Casas, Ricardo; García Rodríguez, Antonio; Rey Bueno, Fernando; Espinola Lara, A.; Valenzuela Calahorro, Cristóbal; Navarrete Guijosa, Antonio

doi:10.1016/j.apsusc.2005.11.020

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Identificadores

URI: https://hdl.handle.net/10481/103351

DOI: 10.1016/j.apsusc.2005.11.020

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Editorial

Elsevier

Fecha

2005

Referencia bibliográfica

Published version: R. Navarrete Casas et al. / Applied Surface Science 252 (2006) 6022–6025. https://doi.org/10.1016/j.apsusc.2005.11.020

Resumen

Because of their pharmaceutical and industrial applications, we have studied the adsorption of xanthine derivates (caffeine and theophylline) by activated carbon. To this end, we examined kinetic, equilibrium and thermodynamic aspects of the process. This paper reports the kinetics results. The experimental results indicate that the process was first order in C and the overall process was assumed to involve a single, reversible adsorption–desorption process obeying a kinetic law postulated by us

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