Microwave-assisted photocatalytic degradation of trichloroethylene using titanium dioxide

Chih Ju G. Jou, Chien Li Lee, Cheng Hsien Tsai, H. Paul Wang

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

Microwave (MW) energy was used to enhance the photocatalytic degradation of trichloroethylene (TCE) using titanium dioxide (TiO2) as the catalyst. The reaction rate constant was determined using the Langmuir-Hinshelwood equation kinetic model. Additionally, the influence of the microwave energy level and application method, and TiO 2 dosage on TCE removal were studied. Higher microwave energy level and higher photocatalyst concentration lead to better TCE removal. However, when the TiO2 dosage exceeds 4 mg/mL, the TCE removal efficiency is not obviously enhanced, demonstrating that the TCE removal is caused more by photocatalyses than microwave heat. Hence, major photo-oxidative reactions induced by microwave radiation to reduce TCE at the TiO2 particle surface are mostly nonthermal.

Original languageEnglish
Pages (from-to)975-979
Number of pages5
JournalEnvironmental Engineering Science
Volume25
Issue number7
DOIs
Publication statusPublished - 2008 Sep 1

All Science Journal Classification (ASJC) codes

  • Environmental Chemistry
  • Waste Management and Disposal
  • Pollution

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