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Proceedings Paper

Identification of the functional groups on the surface of nanoparticles formed in photonucleation of aldehydes generated during forest fire events
Author(s): Fedor N. Dultsev; Ivan A. Mik; Sergei N. Dubtsov; Galina G. Dultseva
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Paper Abstract

We describe the new procedure developed to determine the functional groups on the surface of nanoparticles formed in photonucleation of furfural, one of the aldehydes generated during forest fire events. The procedure is based on the detection of nanoparticle rupture from chemically modified surface of the quartz crystal microbalance oscillating in the thickness shear mode under voltage sweep. The rupture force is determined from the voltage at which the rupture occurs. It depends on particle mass and on the affinity of the surface functional groups of the particle to the groups that are present on the modified QCM surface. It was demonstrated with the amine modification of the surface that the nanoparticles formed in furfural photonucleation contain carbonyl and carboxyl groups. The applicability of the method for the investigation of functional groups on the surface of the nanoparticles of atmospheric aerosol is demonstrated.

Paper Details

Date Published: 25 November 2014
PDF: 7 pages
Proc. SPIE 9292, 20th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 92922Q (25 November 2014); doi: 10.1117/12.2075567
Show Author Affiliations
Fedor N. Dultsev, Institute of Semiconductor Physics (Russian Federation)
Novosibirsk State Univ. (Russian Federation)
Ivan A. Mik, Institute of Semiconductor Physics (Russian Federation)
Novosibirsk State Univ. (Russian Federation)
Sergei N. Dubtsov, Institute of Chemical Kinetics and Combustion (Russian Federation)
Galina G. Dultseva, Novosibirsk State Univ. (Russian Federation)
Institute of Chemical Kinetics and Combustion (Russian Federation)


Published in SPIE Proceedings Vol. 9292:
20th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics
Oleg A. Romanovskii, Editor(s)

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