Catalytic dechlorination of chlorophenols in water by palladium/iron

Yihui Liu, Fenglin Yang, Po Lock Yue, Guohua Chen

Research output: Journal article publicationJournal articleAcademic researchpeer-review

138 Citations (Scopus)

Abstract

Three isomer chlorophenols, o-, m-, p-chlorophenol, were dechlorinated by palladium/iron powder in water through catalytic reduction. The dechlorinated reaction is believed to take place on the surface site of the catalyst in a pseudo-first-order reaction. The reduction product for all the three isomers is phenol. The dechlorination rate increases with increase of bulk loading of palladium due to the increase of both the surface loading of palladium and the total surface area. The molecular structure also has an effect on the dechlorination rate. For conditions with 0.048% Pd/Fe, the rate constants are 0.0215, 0.0155 and 0.0112min-1for o-, m-, p-chlorophenol, respectively. Almost complete dechlorination is achieved within 5h.
Original languageEnglish
Pages (from-to)1887-1890
Number of pages4
JournalWater Research
Volume35
Issue number8
DOIs
Publication statusPublished - 19 Apr 2001
Externally publishedYes

Keywords

  • Catalytic reduction
  • Chlorophenol
  • Dechlorination
  • Palladium/iron

ASJC Scopus subject areas

  • Ecological Modelling
  • Water Science and Technology
  • Waste Management and Disposal
  • Pollution

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