Acta Phys. -Chim. Sin. ›› 2009, Vol. 25 ›› Issue (07): 1461-1466.doi: 10.3866/PKU.WHXB20090748

• ARTICLE • Previous Articles     Next Articles

Preparation of Periodic Mesoporous H6P2W18O62/TiO2(Brij-76) Composite and Microwave Enhanced Photocatalytic Degradation of Monochlorobenzene

LI Li, MA Yu, CAO Yan-Zhen, JI Yuan, GUO Yi-Hang   

  1. Faculty of Chemistry, Northeast Normal University, Changchun 130024, P. R. China|Faculty of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, Heilongjiang Province, P. R. China
  • Received:2008-12-17 Revised:2009-04-16 Published:2009-06-26
  • Contact: GUO Yi-Hang E-mail:guoyhl@nenu.edu.cn

Abstract:

The H6P2W18O62/TiO2 (Brij-76) composite was prepared by a combination of the nonionic surfactant polyethylene glycol octadecyl ether polyoxyethulene 10 stearyl ether (C18H37(OCH2CH2)10OH)(Brij-76) as the template and a single-step sol-gel-hydrothermal method. The as-synthesized composite was characterized by Fourier transform infrared (FT-IR) spectrum, X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray (EDX), N2 adsorption-desorption and NH3-temperature programmed desorption (NH3-TPD). Results showed that the average pore diameter of the composite H6P2W18O62/TiO2(Brij-76) was ca 3.31 nm, and it had a large surface area of 99.78 m2·g-1. Additionally, the aggregation of particles was effectively inhibited and the surface acidity increased substantially. The photocatalytic elimination of monochlorobenzene was used as a model reaction to evaluate the microwave enhanced photocatalytic activity of the composite, and the results showed that the composite H6P2W18O62/TiO2 (Brij-76) could effectively degradate monochlorobenzene and had high catalytic activity under microwave irradiation.

Key words: Photocatalysis, H6P2W18O62/TiO2, C18H37(OCH2CH2)10OH, Sol-gel method, Microwave, Monochlorobenzene

MSC2000: 

  • O643