Advisor:  Z. John Zhang

Abstract:

There are increasing interests in the removal arsenic from water through the utilization of iron’s affinity for arsenic oxo-ions.  Nano-size iron oxides including goethite, lepidocrocite, maghemite, magnetite and hematite have been synthesized and characterized systematically.  These nanoparticles were exposed to arsenic solutions to measure the percent uptake of arsenic by each phase of iron oxides. The efficiency and feasibility of arsenic removal using iron oxides nanoparticles will be discussed.