Complete Degradation of Gaseous Methanol over Pt/FeOx Catalysts by Normal Temperature Catalytic Ozonation

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Mingze Tian
  • Shejiang Liu
  • Lulu Wang
  • Hui Ding
  • Dan Zhao
  • Yongqiang Wang
  • Jiahao Cui
  • Jianfeng Fu
  • Gang Kevin Li

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)1938-1945
Journal / PublicationEnvironmental Science and Technology
Volume54
Issue number3
Online published6 Jan 2020
Publication statusPublished - 4 Feb 2020

Abstract

Normal temperature catalytic ozonation (NTCO) is a promising yet challenging method for the removal of volatile organic compounds (VOCs) because of limited activity of the catalysts at ambient temperature. Here, we report a series of Pt/FeOx catalysts prepared by the co-precipitation method for NTCO of gaseous methanol. All samples were found to be active and among them, the Pt/FeOx-400 (calcined at 400 °C) catalyst with a Pt cluster loading of 0.2% exhibited the highest activity, able to completely convert methanol into CO2 and H2O at 30 °C. Extensive experimental research suggested that the superior catalytic activity could be attributed to the highly dispersed Pt clusters and an appropriate molar ratio of Pt0/Pt2+. Furthermore, electron paramagnetic resonance and density functional theory computational studies revealed the mechanism that the Pt/FeOx-400 catalyst could activate O3 and water effectively to produce hydroxyl radicals responsible for the catalytic oxidation of methanol. The findings of this work may foster the development of technologies for normal temperature abatement of VOCs with low energy consumption.

Bibliographic Note

Full text of this publication does not contain sufficient affiliation information. With consent from the author(s) concerned, the Research Unit(s) information for this record is based on the existing academic department affiliation of the author(s).

Citation Format(s)

Complete Degradation of Gaseous Methanol over Pt/FeOx Catalysts by Normal Temperature Catalytic Ozonation. / Tian, Mingze; Liu, Shejiang; Wang, Lulu; Ding, Hui; Zhao, Dan; Wang, Yongqiang; Cui, Jiahao; Fu, Jianfeng; Shang, Jin; Li, Gang Kevin.

In: Environmental Science and Technology, Vol. 54, No. 3, 04.02.2020, p. 1938-1945.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review