Seminar- High-Valent Iron Species (Ferrates): Multimodal Action in Water Treatment

Where: 
Ford Environmental Science and Technology Room L1-205
When: 
Friday, January 24, 2020 - 11:00

 

Dr. Virender K. Sharma
Professor
Department of Environmental and Occupational Health, School of Public Health
Texas A&M University
 
Abstract:

Iron in +6 oxidation state, called ferrate(VI) (FeVIO42-), is an emerging environmentally-friendly sustainable material, which can play important role in processes like oxygen generation from water, synthesis of organic molecules with selectivity, and treatment of water and wastewater. The theme of the presentation will be to demonstrate the multiple properties of ferrate(VI) to perform disinfection, coagulation, and oxidation. Examples of disinfecting chlorine resistant microorganisms and coagulating toxic metals will be given. Oxidative transformation of pharmaceuticals in water will be presented. Recent research on “Activated Ferrate” to oxidize recalcitrant pollutants in water will be discussed. A wide range of micropollutants in water can be degraded by “Activated Ferrate” with high efficiency, in seconds, which would otherwise take several minutes or hours by ferrate(VI) without activation. Advances made in applying different strategies used to produce “Activated Ferrate” will be given. Finally, the mechanisms of different activities of “Activated Ferrate” to oxidize micropollutants by invoking highly reactive iron intermediates (i.e., FeV and FeIV) will be discussed.

Biography:

Dr. Virender K. Sharma is currently a Professor at the Department of Environmental and Occupational Health, School of Public Health (SPH), Texas A&M University. He is also serving as the Director of the Program for the Environment and Sustainability of the SPH. Dr. Sharma has made seminal contributions in the areas of chemistry and environmental applications of ferrates. Dr. Sharma has also made key contributions in elucidating stabilization and toxicity of natural nanoparticles in an aquatic environment, resulting in an impact on human and ecological health. He has published more than 320 peer-reviewed publications. Dr. Sharma has also published 55 book chapters, 36 proceedings, and authored/edited 8 books. His distinguished awards include Fellow of the Royal Society of Chemistry, Bush Excellence Award for International Research, Faculty Excellence in Research by Florida Tech, Outstanding Chemist by the American Chemical Society (Orlando Section), Outstanding Distinguished Scientist Award by Sigma Xi (Texas A&M University Chapter), International Fellowship awarded by the Chinese Academy of Sciences, and Invited Professorship by University of Paris, France.