In situ FTIR study on photo-catalytic degradation of trichloroethylene over TiO2

Chuan Rui Jiang, Chun Li Zheng, Xin Yong Li, Li Yuan Wang, Wen Shuang Zhang, Guohua Chen

Research output: Journal article publicationJournal articleAcademic researchpeer-review

2 Citations (Scopus)

Abstract

Photo-degradation and gas-phase photocatalytic degradation on TiO2of trichloroethy-lene were stu-died by in situ infrared spectroscopy. The results show that UV/TiO2has a higher degradation capacity than UV on trichloroethylene. In the photocatalytic degradation process, dichloroacetyl chloride, carbon dioxide, carbon monoxide, water, hydrogen chloride and phosgene were detected. Base on the in situ FTIR spectra in different stages, the reaction mechanism of trichloroethylene photocatalysis on TiO2was proposed: trichloroethylene was oxidized by hydroxyl radical and other free radical and formed to dichloroacetyl chloride. Finally, dichloroacetyl chloride was converted further to carbon dioxide, carbon monoxide, water, hydrogen chloride and phosgene.
Original languageEnglish
Pages (from-to)539-543
Number of pages5
JournalGaodeng Xuexiao Huaxue Xuebao/Chemical Journal of Chinese Universities
Volume30
Issue number3
Publication statusPublished - 1 Mar 2009
Externally publishedYes

Keywords

  • In situ FTIR
  • Photocatalysis
  • TiO 2
  • Trichloroethylene

ASJC Scopus subject areas

  • Chemistry(all)

Cite this