Chinese Journal of Applied Chemistry ›› 2010, Vol. 27 ›› Issue (02): 197-200.DOI: 10.3724/SP.J.1095.2010.90173

• Full Papers • Previous Articles     Next Articles

Catalytic Wet Peroxide Oxidation of Phenol over Iron Oxide on Carbon Nanotube

ZHAO Song-Lin, LIANG Hua-Ding*, JU Xiao-Min   

  1. (School of Pharmaceutical and Chemical Engineering,Taizhou University,Taizhou 317000)
  • Received:2009-03-12 Revised:2009-06-01 Published:2010-02-10 Online:2010-02-10
  • Contact: LIANG Hua-Ding
  • About author:*Corresponding author: Professor LIANG Hua-Ding, male, Tel:+86-576-85137182,E-mail: lianghuading@163.com, Current Research Topics in Environmental Analytical Chemistry

Abstract:

Multiwelled carbon nanotube supported iron oxide(Fe2O3/CNT) as catalyst for the oxidation of phenol in waste water by hydrogen peroxide was studied. The catalysts samples was synthesized by a chemical precipitation in the presence or absence of polyvinyl alcohol(PVA) and followed by a heat treatment. X-ray diffraction(XRD) result revealed two crystalline (α-type and γ-type) iron oxide were presented in the catalyst. The content of the active metal oxide component on the CNT was about 15.1%. The catalytic performance were carried out in a glass vessel in a batch operation mode at atmospheric pressure and temperature ranging from 50 ℃ to 90 ℃. At a temperature of 80 ℃, initial phenol concentration of 350 mg/L, hydrogen peroxide 1 500 mg/L and catalysts 1.0 g/L, the phenol conversion and the COD removal rate of the water were 100% and 86.1%, respectively, after 240 min oxidation. The influence of using PVA in the process of catalysts preparation on their catalytic performance was discussed.

Key words: Multi-welled carbon nanotubes, Iron oxide, Catalytic Wet Oxidation, Peroxide, Phenol

CLC Number: