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dc.contributor.author
Hoinkis, Nina
dc.contributor.author
Litter, Marta Irene
dc.date.available
2023-07-18T13:58:47Z
dc.date.issued
2022-11
dc.identifier.citation
Hoinkis, Nina; Litter, Marta Irene; Mechanisms of Sonochemical Transformation of Nitrate and Nitrite under Different Conditions: Influence of Additives and pH; American Chemical Society; Industrial & Engineering Chemical Research; 61; 44; 11-2022; 16408-16417
dc.identifier.issn
0888-5885
dc.identifier.uri
http://hdl.handle.net/11336/204274
dc.description.abstract
The sonochemical NO3-reduction (2 mM) under Ar at 850 kHz was evaluated at pH 1, 3, and 7, and with the addition of formic, ethylenediaminetetraacetic, and citric acids. In all cases, the NO3-removal was lower than 15% after 180 min under ultrasound. The low NO3-transformation was attributed to the rapid NO2-reoxidation in the sonochemical system. In contrast, the ultrasonic NO2-(2 mM) oxidation under Ar at the same frequency was effective at pH 3 (with HClO4) after 240 min of reaction. Different experimental conditions were also tested: under O2atmosphere, using HCl as the acidifier, adding t-BuOH as HO•scavenger, KIO4as an oxidizing agent, and changing the pH to 1. NO3-in solution was the main product in all cases, and all the experimental data for NO2-decay could be adjusted to a first-order kinetics. At pH 1, under Ar, an almost complete NO2-oxidation took place with an increased rate compared with the experiment at pH 3. Mechanisms under the different conditions are discussed.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Chemical Society
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Sonochemistry
dc.subject
Nitrate
dc.subject
Nitrite
dc.subject.classification
Físico-Química, Ciencia de los Polímeros, Electroquímica
dc.subject.classification
Ciencias Químicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Mechanisms of Sonochemical Transformation of Nitrate and Nitrite under Different Conditions: Influence of Additives and pH
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-06-30T12:29:39Z
dc.journal.volume
61
dc.journal.number
44
dc.journal.pagination
16408-16417
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Nueva York
dc.description.fil
Fil: Hoinkis, Nina. Johannes Gutenberg Universitat Mainz; Alemania
dc.description.fil
Fil: Litter, Marta Irene. Universidad Nacional de San Martín. Instituto de Investigación e Ingeniería Ambiental. - Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigación e Ingeniería Ambiental; Argentina
dc.journal.title
Industrial & Engineering Chemical Research
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1021/acs.iecr.2c02296
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/acs.iecr.2c02296
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