Photocatalytic microreactor using monochromatic visible light

Ning Wang, Yupeng Zhang, Lei Lei, Helen L.W. Chan, Xuming Zhang

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

4 Citations (Scopus)

Abstract

A photocatalytic planar reactor with an immobilized nanoporous BiVO4film has been integrated with a blue-light panel LED, which acts as the light source. The microreactor utilizes two BiVO4-coated glasses as the top and the bottom layer and a UV curable resin layer as the spacer. The UV spacer is patterned with tree-shaped microchannels and a reaction chamber (10 × 10 × 0.1 mm3). It was found that under blue light of 140 mW/cm2(the LED is powered at 11 V, 402 nm ) and the flow rate of 37.5 μl/min, the microreactor has the optimum performance with a degradation rate of about 3%/s and a photonic utilization efficiency ≥ 0.02%. However, the photonic efficiency can be improved to 0.3% when LED is powered at 9 V.
Original languageEnglish
Title of host publicationNEMS/MEMS Technology and Devices
Pages219-222
Number of pages4
DOIs
Publication statusPublished - 12 Jul 2011
EventInternational Conference on Materials for Advanced Technologies, ICMAT2011 - Symposium G: NEMS/MEMS and MicroTAS - Suntec, Singapore
Duration: 26 Jun 20111 Jul 2011

Publication series

NameAdvanced Materials Research
Volume254
ISSN (Print)1022-6680

Conference

ConferenceInternational Conference on Materials for Advanced Technologies, ICMAT2011 - Symposium G: NEMS/MEMS and MicroTAS
Country/TerritorySingapore
CitySuntec
Period26/06/111/07/11

Keywords

  • Bismuth vandate
  • Blue-light LED
  • Microfluidic reactor
  • Photocatalysis

ASJC Scopus subject areas

  • Engineering(all)

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