If you would like to learn more about opportunities for graduate and undergraduate students in our group,please email Prof. Schnitzler.
Graduate and undergraduate students in our group will have opportunities to perform experiments in the laboratory and the field, applying principles and techniques from physical and analytical chemistry to atmospheric and environmental problems.
Students will use state-of-the-art commercial and custom-built instruments, also gaining experience in instrument design,
programming, and electronics.
Atmospheric aerosols, composed of microscopic solid or liquid particles suspended in air, exert significant effects on Earth’s energy balance, both directly by absorbing and scattering sunlight and indirectly by influencing cloud formation. These impacts depend on the composition and structure of the component particles.For example, wildfires may emit aggregates of elemental carbon that are subsequently coated with a wide range of organic compounds. To what extent do these organic compounds partition to the particle phase? Once in the particle phase, how do the organic compounds change the ability of the elemental carbon to absorb sunlight and activate cloud formation? To help answer these and other questions, we investigate the complex chemical, physical, and optical properties of atmospheric aerosol particles with advanced experimental and computational approaches.
To measure particle-bound polycyclic aromatichydrocarbons
Hygroscopic tandem mobility analyzer
To measure water uptake onto aerosol particles
Multi-phase chemistry flow-tubes
To expose solid and liquid films to gaseous reactants
Gas-phase ozonolysis flow-tube
To expose volatile organic compounds to ozone
Incoherent broad-band cavity-enhanced
aerosol extinction spectrometer
To measure extinction and complex refractive indices of suspended aerosol particles
To measure aerosolsize distributions
To predict structures and spectra of aerosolconstituents
LC–time-of-flight mass spectrometer
To separate and quantify components of complex mixtures
Dual-beam fiber-based UV-vis spectrometer
To characterize light-absorbing organic aerosol constituents in solution