Temperature influence on adsorption of organic nitrogen-containing compounds from water solutions
Aniline and pyridine adsorption from water solutions at temperatures of 10°Ñ and 25°Ñ with active carbon (AG-OB-1) was studied. It was shown that growing temperature leads to increasing adsorption of organic compounds and intensification of their interaction with active carbon surface. Basic thermodynamic characteristics of nitrogen-containing compounds were calculated. Increasing constants of adsorption equilibrium and adsorption Gibbs energy confirm a hypothesis on growth of specific interaction of aniline and pyridine with active carbon surface. Also increasing adsorption entropy during temperature growth gives evidence of destruction of aqua complexe structure of organic compounds then components are adsorbed on active carbon surface.