Research on the effects of some factors on the adsorption capacity of 2,4-D in solution on carbon nanotube materials and activated carbon nanotubes

Abstract

This article introduces the results of research investigating the effects of initial concentration 2,4-dichlorophenoxyacetic acid (2,4-D), temperature, pH, CaCl₂ salt concentration  and surfactant TX100 in solution on the 2,4-D adsorption capacity of carbon nanotube (CNTs) materials CNT-TC and CNT-HKi. Under the investigated conditions, CNT-HK7 had the highest ability to adsorb 2,4-D in solution. Progress 2,4-D adsorption of CNT-TC and CNT-HKi materials is exothermic and physical in nature, controlled by electrostatic interactions of solution. The presence of CaCl₂ salt in the solution has created favorable conditions for the progress 2,4-D adsorption of CNT-TC and CNT-HKi. The presence of the active substance TX100 in the solution hinders the adsorption of 2,4-D by CNT-TC and CNT-HKi.