Photochemical emission and fixation of NO
NOx
Nitric oxide
Nitrogen cycle
Soil photocatalysis
Journal
The Science of the total environment
ISSN: 1879-1026
Titre abrégé: Sci Total Environ
Pays: Netherlands
ID NLM: 0330500
Informations de publication
Date de publication:
01 Feb 2020
01 Feb 2020
Historique:
received:
13
06
2019
revised:
10
10
2019
accepted:
13
10
2019
pubmed:
17
11
2019
medline:
17
11
2019
entrez:
17
11
2019
Statut:
ppublish
Résumé
Gaseous nitrogen oxides (NOx), which result from the combustion of fossil fuels, volcanic eruptions, forest fires, and biological reactions in soils, not only affect air quality and the atmospheric concentration of ozone, but also contribute to global warming and acid rain. Soil NOx emissions have been largely ascribed to soil microbiological processes; but there is no proof of abiotic catalytic activity affecting soil NO emissions. We provide evidence of gas exchange in soils involving emissions of NOx by photochemical reactions, and their counterpart fixation through photocatalytic reactions under UV-visible irradiation. The catalytic activity promoting NOx capture as nitrate varied widely amongst different soil types, from low in quartzitic sandy soils to high in iron oxide and TiO
Identifiants
pubmed: 31733554
pii: S0048-9697(19)34974-5
doi: 10.1016/j.scitotenv.2019.134982
pii:
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
134982Informations de copyright
Copyright © 2019 Elsevier B.V. All rights reserved.