Cluster Isotherm Analysis and Quantum Structural Optimization of L-Proline on MKN-SWCNT S1 carbon nanotubes

Abstract

This study constructed the adsorption isotherm of L-proline on MKN-SWCNT S1 single-walled carbon nanotubes was constructed. The cluster adsorption model was used to analyze the experimental isotherm. The results showed that L-proline was adsorbed in the form of a monomer and a cluster composed of 6–7 monomers. Quantum chemical methods were used to optimize the structure and determine the basic parameters of the adsorption system. The results showed that the most likely mechanism for immobilizing amino acids on the carbon nanotube surface is Van der Waals interaction.