Charge Effects on the Photodegradation of Single Optically Trapped Oleic Acid Aerosol Droplets
Evelyne A. Parmentier, Pablo Corral Arroyo, Richard Gruseck, Loren Ban, Grégory David, Ruth Signorell
Abstract
elementary charges were retrieved from Raman spectra and elastic light scattering, respectively. No influence of the droplet charge was observed, either on the chemical composition or on the kinetics. Based on a kinetic multilayer model, we propose a reaction mechanism with the photoexcitation of oleic acid into an excited state, subsequent decay into intermediates and further photoexcitation of intermediates and their decay into nonvolatile and volatile products.
Topics & Concepts
PhotoexcitationChemistryChemical physicsExcited stateAerosolPhotochemistryKinetic energyOleic acidRaman spectroscopyAtomic physicsOpticsOrganic chemistryPhysicsQuantum mechanicsBiochemistryAtmospheric chemistry and aerosolsAtmospheric Ozone and ClimateAtmospheric aerosols and clouds