Journal
ACTA PHYSICO-CHIMICA SINICA
Volume 17, Issue 3, Pages 278-281Publisher
PEKING UNIV PRESS
DOI: 10.3866/PKU.WHXB20010320
Keywords
formaldehyde; photocatalytic oxidation; temperature programmed desorption; electron spin resonance
Categories
Ask authors/readers for more resources
The adsorption state of reactants, free radical intermediates and the reaction mechanism have been studied by means of temperature programmed description (TPD), electron spin resonance (ESR) and spin traping-ESR in the photocatalytic oxidation of formaldehyde. The results showed that O-2 adsorbed on the surface of photocatalyst could be reduced to .O-2(-) by photogenerated electrons and H2O could be oxidized to . OH by holes, Both free radicals are active oxidants in the reaction of photocatalytic oxidation of HCHO. The photocatalytic oxidation of HCHO carried out with two steps, Firstly, HCHO was oxidized into HCOOH, then HCOOH converted into final product of CO2 and H2O.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available