Fe₃O₄ nanoparticles decorated multi-walled carbon nanotubes and their sorption properties

This paper reports a simple and efficient chemical method to decorate multi-walled carbon nanotubes(MWCNTs) with iron oxide nanoparticles. The TEM, FTIR, Raman and UV analysis demonstrate that iron oxide nanoparticles were well deposited on the outer walls of MWCNTs. The size of the nanoparticles ranges from 30 to 50 nm. The sorption property of MWCNTs/Fe₃O₄ composites for the removal of 2,4-dichlorophenol(2,4-DCP) and Cu²⁺ ions from aqueous solution was explored. The results present that MWCNTs decorated with Fe₃O₄ possessed higher sorption capability for removing 2,4-DCP and Cu²⁺ ions, which favour the highly potential applications for pollutants removal from water.