Simultaneous adsorption and dechlorination of 2,4-dichlorophenol by Pd/Fe nanoparticles with multi-walled carbon nanotube support

► MWNTs were used to support the Pd/Fe nanoparticles and inhibit the iron aggregation. ► Simultaneous adsorption and dechlorination of 2,4-DCP by MWNT-Pd/Fe particles were demonstrated. ► MWNTs had a selective adsorption capacity as follows: 2,4-DCP > p-CP, o-CP > P.