Research Article

Nano Research

, Volume 2, Issue 8, pp 617-623

First online:

Open Access This content is freely available online to anyone, anywhere at any time.

Design of a carbon nanotube/magnetic nanoparticle-based peroxidase-like nanocomplex and its application for highly efficient catalytic oxidation of phenols

  • Xiaolei ZuoAffiliated withShanghai Institute of Applied Physics, Chinese Academy of Sciences
  • , Cheng PengAffiliated withShanghai Institute of Applied Physics, Chinese Academy of Sciences
  • , Qing HuangAffiliated withShanghai Institute of Applied Physics, Chinese Academy of Sciences
  • , Shiping SongAffiliated withShanghai Institute of Applied Physics, Chinese Academy of Sciences
  • , Lihua WangAffiliated withShanghai Institute of Applied Physics, Chinese Academy of Sciences
  • , Di LiAffiliated withShanghai Institute of Applied Physics, Chinese Academy of Sciences
  • , Chunhai FanAffiliated withShanghai Institute of Applied Physics, Chinese Academy of Sciences Email author 

Abstract

We report a novel nanotechnology-based approach for the highly efficient catalytic oxidation of phenols and their removal from wastewater. We use a nanocomplex made of multi-walled carbon nanotubes (MWNTs) and magnetic nanoparticles (MNPs). This nanocomplex retains the magnetic properties of individual MNPs and can be effectively separated under an external magnetic field. More importantly, the formation of the nanocomplex enhances the intrinsic peroxidase-like activity of the MNPs that can catalyze the reduction of hydrogen peroxide (H2O2). Significantly, in the presence of H2O2, this nanocomplex catalyzes the oxidation of phenols with high efficiency, generating insoluble polyaromatic products that can be readily separated from water.

http://static-content.springer.com/image/art%3A10.1007%2Fs12274-009-9062-3/MediaObjects/12274_2009_9062_Fig1_HTML.jpg

Keywords

Carbon nanotubes magnetic nanoparticles phenol peroxidase catalysis