Study of the adsorption kinetics of 17α-ethinylestradiol(EE2) onto Al₂O₃, SiO₂, and CeO₂ nanoparticles
Department
Chemistry
Major
Chemistry
Research Advisor
Ma, Yinfa
Advisor's Department
Chemistry
Funding Source
Missouri S&T Opportunities for Undergraduate Research Experiences (OURE) Program; Department of Chemistry, Environmental Research Center
Abstract
Adsorption of 17 alpha-ethinylestradiol onto nanoparticles shows promise as a possible step in water treatment. In order to better understand the process a kinetic study of adsorption onto Al2O3, SiO2, and CeO2 nanoparticles was done with a constant temperature of 25 °C and pH of 7.0. In the study the specific surface area was kept the same for all three nanoparticle doses(30m2/ml). The Al2O3, SiO2, and CeO2 nanoparticles all showed very similar removal percentages of 76.19%, 72.01%, and 78.43% respectively. The pseudo-second-order kinetic model was found to be the best fit for all three nanoparticles' adsorption behavior. Based on the pseudo second order kinetic model being the best fit and the very similar percent removals, we can assume that under these experimental conditions that the rate of adsorption of EE2 is primarily dependent on the surface area available, and has little to do with the intrinsic properties of the nanoparticles.
Biography
Dominique is currently a sophomore majoring in Chemistry with a minor in Mathematics at Missouri S&T. There he continued to excel at his studies, earning departmental awards for leadership and outstanding achievement. He is involved in the Baduk(Go) club and is a member of Delta Sigma Phi fraternity where he serves as fundraising chair. At the 6th annual undergraduate research conference he received third place in the research proposal section for his poster "Measurement of the Production of Beta- 1,4-Endoglucanase by Genetically Engineered Bacteria". He plans to pursue graduate education in biochemistry.
Research Category
Sciences
Presentation Type
Poster Presentation
Document Type
Poster
Location
Upper Atrium/Hallway
Presentation Date
06 Apr 2011, 9:00 am - 11:45 am
Study of the adsorption kinetics of 17α-ethinylestradiol(EE2) onto Al₂O₃, SiO₂, and CeO₂ nanoparticles
Upper Atrium/Hallway
Adsorption of 17 alpha-ethinylestradiol onto nanoparticles shows promise as a possible step in water treatment. In order to better understand the process a kinetic study of adsorption onto Al2O3, SiO2, and CeO2 nanoparticles was done with a constant temperature of 25 °C and pH of 7.0. In the study the specific surface area was kept the same for all three nanoparticle doses(30m2/ml). The Al2O3, SiO2, and CeO2 nanoparticles all showed very similar removal percentages of 76.19%, 72.01%, and 78.43% respectively. The pseudo-second-order kinetic model was found to be the best fit for all three nanoparticles' adsorption behavior. Based on the pseudo second order kinetic model being the best fit and the very similar percent removals, we can assume that under these experimental conditions that the rate of adsorption of EE2 is primarily dependent on the surface area available, and has little to do with the intrinsic properties of the nanoparticles.
