Effective Hydrodechlorination of 4-Chlorophenol Over Pd Deposited on Multiwall Carbon Nanotubes

Abstract

Multiwall carbon nanotubes (MWCNTs) supported Pd nanoparticles were prepared by impregnation method and characterized by TEM, XRD, XPS, and FT-IR. The as-prepared catalyst Pd/MWCNTs exhibited excellent catalytic property for the hydrodechlorination (HDC) of 4-chlorophenol (4-CP) in aqueous medium without any additives under mild conditions. The results indicated that the choice of support and the introduction of metal ions played a significant role in the catalytic property for HDC of 4-CP. The high catalytic performance of Pd/MWCNTs was attributed to the highly dispersed Pd nanoparticles on the support MWCNTs and the interaction between support and metal actives.

Keywords:

• 4-chlorophenol
• hydrochlorination
• multiwall carbon nanotubes
• palladium nanoparticles