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dc.contributor.author
Durantini, Andres Matías
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dc.contributor.author
Greer, Alexander
dc.date.available
2022-10-11T10:40:02Z
dc.date.issued
2021-03
dc.identifier.citation
Durantini, Andres Matías; Greer, Alexander; Interparticle Delivery and Detection of Volatile Singlet Oxygen at Air/Solid Interfaces; American Chemical Society; Environmental Science & Technology; 55; 6; 3-2021; 3559-3567
dc.identifier.issn
0013-936X
dc.identifier.uri
http://hdl.handle.net/11336/172342
dc.description.abstract
An interparticle system has been devised, allowing airborne singlet oxygen to transfer between particle surfaces. Singlet oxygen is photogenerated on a sensitizer particle, where it then travels through air to a second particle bearing an oxidizable compounda particulate-based approach with some similarities to reactive oxygen quenching in the atmosphere. In atmospheric photochemistry, singlet oxygen is generated by natural particulate matter, but its formation and quenching between particles has until now not been determined. Determining how singlet oxygen reacts on a second surface is useful and was developed by a three-phase system (particle− air−particle) interparticulate photoreaction with tunable quenching properties. We identify singlet oxygen quenching directly by near-IR phosphorescence in the airborne state and at the air/particle interface for total quenching rate constants (kT) of adsorbed anthracene trapping agents. The air/solid interface kT of singlet oxygen by anthracene-coated particles was (2.8 ± 0.8) × 107 g mol−1 s−1 for 9,10-dimethylanthracene and (2.1 ± 0.9) × 107 g mol−1 s−1 for 9,10-anthracene dipropionate dianion, and the lifetime of airborne singlet oxygen was measured to be 550 μs. These real-time interactions and particle-induced quenching steps open up new opportunities for singlet oxygen research of atmospheric and particulate processes.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Chemical Society
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
AIRBORNE SINGLET OXYGE
dc.subject
AIR/SOLID INTERFACES
dc.subject
PHOTOSENSITIZER
dc.subject.classification
Otras Ciencias Químicas
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dc.subject.classification
Ciencias Químicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Interparticle Delivery and Detection of Volatile Singlet Oxygen at Air/Solid Interfaces
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2022-09-14T15:36:21Z
dc.identifier.eissn
1520-5851
dc.journal.volume
55
dc.journal.number
6
dc.journal.pagination
3559-3567
dc.journal.pais
Estados Unidos
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dc.journal.ciudad
Washington
dc.description.fil
Fil: Durantini, Andres Matías. Universidad Nacional de Río Cuarto. Instituto para el Desarrollo Agroindustrial y de la Salud. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto para el Desarrollo Agroindustrial y de la Salud; Argentina. Brooklyn College; Estados Unidos
dc.description.fil
Fil: Greer, Alexander. City University Of New York. The City College Of New York.; Estados Unidos. Brooklyn College; Estados Unidos
dc.journal.title
Environmental Science & Technology
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/acs.est.0c07922
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1021/acs.est.0c07922
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