Cluster Adsorption of L-Histidine on Carbon Nanotubes in Aqueous Solutions at Different Temperatures

Abstract Adsorption isotherms are obtained for L-histidine on carbon nanotubes using aqueous solutions at temperatures of 25, 35, 45, 55, 65, and 80°C. The interpreted by the cluster adsorption model analyzing dependence strength bond nanotube–amino acid temperature. Equations all temperatures. calculated results indicate that is fixed a nanotube’s surface in form monomers different clusters. equilibrium characteristics found to change as temperature rises. Values coefficients used calculate apparent enthalpy Δ H * nanotubes, according van’t Hoff equation.