催化学报

催化学报 ›› 2008, Vol. 29 ›› Issue (11): 1152-1158.

• 研究论文 • 上一篇    下一篇

催化膜和催化膜反应器: 整合的高效和环保催化过程

Enrico DRIOLI, Enrica FONTANANOVA, Marcella BONCHIO, Mauro CARRARO, Martino GARDAN, Gianfranco SCORRANO   

  1. DV Sokolsky Institute of Organic Catalysis and Electrochemistry, 142 Kunaev str, Almaty, 050010, Kazakhstan
  • 收稿日期:2008-11-25 出版日期:2008-11-25 发布日期:2012-08-17

Catalytic Menbranes and Catalytic Membrane Reactors: An Integrated Approach to Catalytic Process with a High Efficiency and a Low Environmental Impact

Enrico DRIOLI, Enrica FONTANANOVA, Marcella BONCHIO, Mauro CARRARO, Martino GARDAN, Gianfranco SCORRANO   

  1. 1 Institute on Membrane Technology of the National Research Council (ITM-CNR), University of Calabria,Via P. Bucci,17/C,87030,Rende (CS), Italy;2 Department of Chemical Engineering and Materials, University of Calabria, Via P. Bucci 44/A,Rende (CS), Italy;3 ITM-CNR, University of Padova, Via Marzolo,1,35131,Padova, Italy
  • Received:2008-11-25 Online:2008-11-25 Published:2012-08-17

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摘要： The design of new heterogeneous photooxygenation systems able to employ visible light, oxygen, mild temperatures, and solvent with a low environmental impact has been investigated. In particular, the heterogenization of decatungstate (W10O4-32), a polyoxometalate with photocatalytic activity in oxidation reactions, has been carried out in polymeric membranes of polyvinylidenefluoride. The polymeric catalytic membranes prepared by phase inversion technique have been successfully applied in the aerobic mineralization of phenol in water, which was used as an example of organic pollutant. In order to evaluate the effect of the polymeric environment on the overall catalyst behavior, we have also heterogenized the decatungstate (opportunely functionalized) in perfluorinated membrane made of Hyflon. The photocatalytic composite membranes are characterized by different and tuneable properties depending on the nature of the polymeric micro-environment, in which the catalyst is confined. Moreover, the selective separation function of the membrane results in enhanced performance in comparison with homogeneous reactions.

关键词: catalytic membrane, catalytic membrane reactor, catalyst heterogenization, decatungstate, polyvinylidenefluoride, Hyflon, phenol degradation

Abstract: New catalytic membranes have been realized by the heterogenization of the photoc atalyst decatungstate (W10) in membranes made of the partially fluorinated polyv inylidenefluoride (PVDF) and the perfluorinated polymer Hyflon. The photocatalyt ic composite membranes are characterized by different and tuneable properties de pending on the nature of the polymeric micro-environment, in which the catalyst is confined.

Key words: catalytic membrane, catalytic membrane reactor, catalyst heterogenization, decatungstate, polyvinylidenefluoride, Hyflon, phenol degradation