Dendrimer-modified carbon nanotubes for the removal and recovery of heavy metal ions from water.

ABSTRACT: Effective removal of trace heavy metal ions from aqueous bodies is a pressing problem and requires significant improvement in the area of absorbent material in terms of removal efficiency and sustainability. We propose an efficient strategy to enhance the adsorption efficiency of carbon nanotubes (CNTs) by growing dendrimers on their surface. First, CNTs were pre-functionalized with maleic acid (MA) via Diels-Alder reaction in presence of a deep eutectic solvent under ultrasonication. Subsequently, dendrimers of varying length were grown by the repeated reaction of ethylene diamine and MA. Raman spectroscopy was specifically used to confirm the Diels-Alder reaction on the surface of CNTs, and other characterization techniques (SEM, EDX, XRD, TGA, and FTIR) were applied to confirm the succe

SUBMITTER: Tran TQN 

PROVIDER: S-EPMC12415912 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature