Studies of adsorption equilibria and kinetics in the systems: Aqueous solution of dyes–mesoporous carbons

• Published in: Applied surface science Vol. 256; no. 17; pp. 5164 - 5170
• Main Authors: Derylo-Marczewska, A., Marczewski, A.W., Winter, Sz, Sternik, D.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Amsterdam Elsevier B.V 15.06.2010; Elsevier
• Subjects: Adsorption; Adsorption equilibria and kinetics; Aqueous solutions; Carbon; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Condensed matter: structure, mechanical and thermal properties; Copolymers; Cross-disciplinary physics: materials science; rheology; Dye adsorption; Dyes; Exact sciences and technology; Isotherms; Mesoporous carbons; Oranges; Physics; Spectra; Surface chemistry; Mesoporous carbons; 82.70.−Dd; 82.70.−Gg; Dye adsorption; 67.70.+n; Adsorption equilibria and kinetics; 61.43.Gt; Dyes; Porous materials; Carbon; Mesoporosity; 67.70 +n; Aqueous solutions; 82.70-Gg; Kinetics; 82.70 - Dd; 61.43 Gt
• ISSN: 0169-4332; 1873-5584
• DOI: 10.1016/j.apsusc.2009.12.085

Two carbonaceous materials were synthesized by using the method of impregnation of mesoporous silicas obtained by applying the Pluronic copolymers as pore-creating agents. The isotherms of adsorption of methylene blue and methyl orange from aqueous solutions were measured by the static method. The profiles of adsorbate concentration change in time were obtained from the UV–vis spectra. The adsorption isotherms and kinetic dependence were discussed in the terms of theory of adsorption on heterogeneous surfaces.