Assistant Professor of Chemistry
Office: Dana 217
- B.S. 2000, Universidad Central de Venezuela, Caracas, Venezuela
- Ph.D. 2006, Baylor University, Waco, Texas
- Postdoctoral Fellow, 2006-2009, The University of Iowa, Iowa City, Iowa
At Skidmore since 2013
The Navea research group combines state-of-the-art experimental techniques with theoretical methods to study the impact of particulate matter in the chemical balance of the atmosphere. Although the atmosphere consists primarily of gases, atmospheric particles, or aerosols, play significant roles in shaping the chemical and physical conditions of the lower atmosphere. These atmospheric particles can originate from dust storms, volcanos, or even human activities. Despite of the paramount importance of atmospheric particles, little is known about the reactions that take place on their surface and how they affect climate. To understand these surface reactions, it is required to combine surface, aqueous, and gas phase analysis, under conditions that allows the simulation of nighttime and daytime chemistry. In our laboratory we have developed the experimental and computational methods required to achieve these studies. Our primary goal is to investigate, at a molecular level, the interaction between aerosols and the atmosphere, and understand the climate impact of atmospheric particulate matter. For instance, using our own photochemical reactor system, our research group recently confirmed that surface reactivity on aerosols affects the nitrogen cycle, with important climate implications. We are now investigating the effects of sun light in these surface-mediated reactions.
- CH 125 Principles of Chemistry
- CH 331 Physical Chemistry I
- CH 333 Physical Chemistry II
- CH 351 Atmospheric & Environmental Chemistry
- CH 385 Research Methods in Chemistry
SELECTED PUBLICATIONS (*Indicates undergraduate co-authors)
A. L. Paskavitz*, J. Quintana-Gonzalez, C. Tavera, Y. Xiao*, J. G. Navea, T. Padilla-Benavides. Differential expression of zinc transporters accompanies the differentiation of C2C12 myoblasts. Journal of Trace Elements in Medicine and Biology. Doi.org/10.1016/j.jtemb.2018.04.024
Borgatta, J.*, Paskavitz, A. L.*, Kim, D.* Navea, J. G. Comparative evaluation of iron leach from fly ash from different source regions under atmospherically relevant conditions. Environmental Chemistry. 2016. In Press.
- Lesko, D. M. B.*, Coddens, E. M,*, Swomley, H. D.,* Welch, R. M,* Borgatta, J.* and Navea, J. G. Heterogeneous Photochemistry of Nitrate Chemisorbed on Various Metal Oxides. Physical Chemistry Chemical Physics. 2015, 17, 20775 - 20785
Ancutiene, I. Navea, J. G., and Baltrusaitis, J. Surface structural, chemical and optical properties of polyethylene-copper sulfide composite materials synthesized using sorption-diffusion of polythionic acid. Applied Surface Science. 347, 2015, 520–527.
Borgatta, J.* and Navea, J. G. Fate of Aqueous Iron Leached from Tropospheric Aerosols during Atmospheric Acidic Processing: Study of the Effect of Humic-Like Substances. WIT Transactions on Ecology and the Environment. Vol. 198. 2015. 155-166
- Welch, R. M*, Coddens, E. M*, Navea, J. G. Vibrational spectroscopy and quantum mechanics
calculations of nitric acid chemisorbed on γ-Al2O3 and TiO2. Proceedings of the 106 A&WMA Annual Conference. 2012 (3)
- J. G. Navea, S. Xu, M. A. Young, V. H. Grassian, and C. O. Stanier. Sensitivity Studies
of the Atmospheric Fate of Cyclic Methylsiloxanes: Gas-Phase and Gas- Particle Box
Modeling of Octamethylcyclotetra-siloxane (D4) and Decamethylcyclopentasiloxane (D5).
Atmospheric Environment. 2011. 45, 3181–3191
- H. Chen, J. G. Navea, M. A. Young, and V. H. Grassian. Heterogeneous Photochemistry
of Trace Atmospheric Gases on Components of Mineral Dust Aerosol. Journal of Physical
Chemistry A. 2011. 115(4), 490-499
- J. G. Navea, M. Huang, G. R. Carmichael, and V. H. Grassian. Comparative Evaluation
of Water Uptake and Water Adsorption Isotherms on Authentic Samples of Mineral Dust.
Environmental Chemistry. 2010, 7, 162-170.
- J. G. Navea, C. O. Stanier, S. Xu, M. A. Young, and V. H. Grassian. Effect of Ozone
Adsorption on the Heterogeneous Uptake of Octamethylcyclotetrasiloxane (D4) and Decamethylcyclopentasiloxane
(D5) on Components of Atmospheric Dust and the Effect of RH. Journal of Physical Chemistry
A 2009, 13, 7030-7038
- J. G. Navea, C. O. Stanier, S. Xu, M. A. Young, and V. H. Grassian. Heterogeneous
Uptake of Octamethylcyclotetrasiloxane (D4) and Decamethylcyclopentasiloxane (D5)
on Aerosol Surfaces and the Effect of Relative Humidity. Atmospheric Environment 2009,
- P. Galhotra, J. G. Navea, S. C. Larsen, V. H. Grassian. Transmission FTIR of Carbon Dioxide Adsorption in Zeolite Y. Energy & Environ. Sci. 2009, 2, 401-409.
- American Chemical Society (Physical Chemistry, Colloids, and Environmental Sections)
- Air and Waste Management Society
- American Physical Society