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Full-Text Articles in Physical Sciences and Mathematics
Adsorption Of Microcystins To Sediment Affects Their Bioavailability And Remediation, Ashley Womer
Adsorption Of Microcystins To Sediment Affects Their Bioavailability And Remediation, Ashley Womer
Theses and Dissertations
The freshwater harmful algae Microcystis spp produces a family of toxins called microcystins1. These species of algae are known to release microcystins from their cells directly into the surrounding water2. This creates an array of human health risks depending on the fate and transport of the toxins in the water column3,4. Risk modelling and previous literature has shown that sediment is a sink for free microcystin, microcystin can be stably adsorbed to sediment for hundreds of years, and its adsorption to sediment is determined by the sediment adsorption partitioning coefficient (Kd)5,6,7. In this work it is hypothesized that the sediment …
Understanding The Adsorption And Nucleation Of Transition Metals On A Model Carbon Support, Grant S. Seuser
Understanding The Adsorption And Nucleation Of Transition Metals On A Model Carbon Support, Grant S. Seuser
Theses and Dissertations
Heterogeneous catalysis plays a vital role in the commercial production of chemicals. However, much is still unknown about the fundamental surface chemistry involved in catalyst preparation and the surface chemistry of the catalysts themselves. In the first part of this work, a surface science approach was employed to develop a fundamental understanding of the surface chemistry of strong electrostatic adsorption (SEA) of metal precursors on a model carbon support, highly oriented pyrolytic graphite (HOPG). SEA is a wet impregnation method in which anionic/cationic metal precursors are adsorbed onto positively/negatively charged functional groups by adjusting the pH of the solution above …