Porous Photocatalytic Membrane Microreactor (P2M2): A new reactor concept for photochemistry

H.C. Aran, David Salamon, Timon Rijnaarts, T. Rijnaarts, Guido Mul, Matthias Wessling, Rob G.H. Lammertink

Research output: Contribution to journalArticleAcademicpeer-review

43 Citations (Scopus)

Abstract

In this study, a new membrane microreactor concept for multiphase photocatalytic reactions is demonstrated. Microfabrication, photocatalyst immobilization and surface modification steps were performed to develop a Porous Photocatalytic Membrane Microreactor (P2M2). This concept benefits from a stable gas–liquid–solid (G–L–S) interface allowing a continuous supply of gaseous reactants and a reduced light path. A surface modification technique was devised to alter the wetting conditions of the reactor wall. Through a complete hydrophobization and a selective hydrophilization step by use of UV-light, we obtained a hydrophobic porous membrane support with hydrophilic photocatalytic microchannels. The photocatalytic degradations of methylene blue and phenol were used as model reactions to test the device, demonstrating promising degradation performance. We further demonstrated the effect of additional oxygen supply to the performance of the reactor for both reaction systems
Original languageEnglish
Pages (from-to)36-41
Number of pages6
JournalJournal of photochemistry and photobiology. A: Chemistry
Volume225
Issue number1
DOIs
Publication statusPublished - 2011

Keywords

  • IR-80197
  • Surface modification
  • Phenol
  • Photocatalysis
  • METIS-280170
  • Oxygen
  • Membrane reactor
  • Methylene blue
  • Micro-reactor

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