Dr Ellen Moon
2012 - PhD Geochemistry from the University of Southampton, UK.
Thesis title: Sorption of trace metals to bacteria and (hydr)oxide minerals: Controls on the chemistry of natural waters.
Supervisors: Caroline L. Peacock & Rachel A. Mills
2006 - MSci Chemical Physics from the University of Bristol, UK.
Thesis title: An investigation into the effect of varying relative humidity on the evaporation of optically tweezed water droplets.
Supervisor: Jonathan P. Reid.
Research interests / background:
The aim of my research is to better understand the biogeochemical cycling of trace-metals by investigating, at the molecular scale, their interactions with the mineral and organic components of terrestrial and marine soils and sediments.
I use a combination of wet chemistry techniques, synchrotron-based X-ray absorption spectroscopy and thermodynamic surface complexation modelling to study mineral-metal-microbe interfaces to determine trace-metal adsorption mechanisms. This kind of work also has applications in paleoclimatology as we look to understand trace-metal signatures in terrestrial and marine sedimentary archives
Science communication and outreach:
- CSIRO's Scientists and Mathematicians in Schools Program - partnership with Casino High School
- Lismore's Art v Science Festival
- Falling Walls Lab 2016 - Breaking the Wall of Sustainable Water Treatment
- ABC Radio National's Science Show - New Approach to Provide Clean Water for Poor Communities
As principle investigator
- P4852: The partitioning of contaminants metal(loids) during the thermal transformation of iron(III) hydroxides: Implications for bushfire affected land (2016) Bragg Institute SAXS & USANS Beamtime + Travel (6 days) - $32,032
- P4849: Investigating the primary and emergent phases during aging of greigite (Fe3S4): Insights from SANS and USANS (2016) Bragg Institute SANS & USANS Beamtime (8 days) - $67,805
- Nano-scale insights into the stability of greigite: Key controls in the remediation of acid sulfate soils (2015) SCU Seed Grant - $4,912
- Deducing the nanostructure of primary and emergent phases during aging of greigite, an iron sulfide mineral (2015) Bragg Institute SANS and SAXS Beamtime (6 days) - $25,380
- Deducing the relationship between Fe and S oxidation dates during the oxidative aging of the iron sulfide mineral greigite, Fe3S4 (2015) NSRRC Taiwan Beamtime (3 days) - commercial value $46,800
- ALNGRA15054: Nanostructural changes associated with formation, growth and aging of the iron sulfide mineral greigite (Fe3S4) in an iron-rich acid sulfate soil wetland (2015) AINSE Research Award - $5,060
- M8911: U(VI) partitioning between Fe mineral phases during the aging of schwertmannite to goethite: Implications for contaminant mobility (2015) Australian Synchrotron XAS Beamtime (2 days), Travel & Accommodation - commercial value $31,200
- M5907: XAS investigation into the formation of mixed Zr-Nb colloidal phases in sulphate-based mineral processing liquors (2013) Australian Synchrotron XAS Beamtime (3 days), Travel & Accommodation - commercial value $46,800
- M5294: Uranium extraction from phosphoric acid by ion exchange: Determination of U speciation (2012) Australian Synchrotron XAS Beamtime (3 days), Travel & Accommodation - commercial value $46,800
- M4891: Deducing the nano-structure of Zr-Nb colloidal phases formed in sulphate based mineral processing liquors (2012) Australian Synchrotron XAS Beamtime (1 day), Travel & Accommodation - commercial value $15,600
- Sorption of trace metals to bacteria and hydroxide minerals: Controls on the chemistry of natural waters (2007) Natural Environment Research Council (UK) - PhD scholarship and top-up fund - £45,000
- ALNGRA15538: Effect of arsenic on the crystal structure of 2-line ferrihydrite and hematite: Implications for environmental contamination (2015) AINSE Research Award - $8,930
- M8445: Iron mineral transformation during oxidation of monosulfidic black oozes: Implications for contaminants (2014) Australian Synchrotron XAS Beamtime (2 days), Travel & Accommodation - commercial value $31,200
- M5424: Determination of uranium speciation during recovery from saline waters using ion exchange resins (2012) Australian Synchrotron XAS Beamtime (3 days), Travel & Accommodation - commercial value $46,800
- M4891: Deducing the nano-structure of Zr-Nb colloidal phases formed in sulphate based mineral processing liquors (2012) Australian Synchrotron SAXS/WAXS Beamtime (2 days), Travel & Accommodation - commercial value $31,200
Postgraduate student supervision
PhD:Dakota Gibbs (ongoing)
Project title: Iron stable isotope fractionation in a partially remediated acid sulfate soil wetland - Insights into mineralisation pathways.
Principle supervisor: Richard Bush, Co-supervisors: Ellen Moon, Doug Connelly (NOC, UK), Rachel Mills (Uni. of Southampton, UK)
Ogden, M.D., Moon, E.M., Wilson, A., Pepper, S.E. (2017) Application of chelating weak base resin Dowex M4195 to the recovery of uranium from mixed sulfate/chloride media. Chemical Engineering Journal, In press, accepted February 2017.
Choppala, G., Bush, R., Moon, E., Ward, N., Wang, Z., Bolan, N., Sullivan, L. (2017) Oxidative transformation of iron monosulfides and pyrite in estuarine sediments: Implications for trace metals mobilisation. Journal of Environmental Management, 186, pp. 158-166.
Johnston, S.G., Burton, E.D., Moon, E.M. (2016) Arsenic Mobilization Is Enhanced by Thermal Transformation of Schwertmannite. Environmental Science and Technology, 50 (15), pp. 8010-8019.
Moon EM; Peacock CL (2013) Modelling Cu(II) adsorption to ferrihydrite and ferrihydrite-bacteria composites: Deviation from additive adsorption in the composite sorption system, Geochimica et Cosmochimica Acta, 104, pp.148-164. doi: 10.1016/j.gca.2012.11.030
Nielsen SG; Wasylenki LW; Rehkamper M; Peacock CL; Xue Z; Moon EM (2013) Towards an understanding of thallium isotope fractionation during adsorption to manganese oxides, Geochimica et Cosmochimica Acta, 117, pp.252-265. doi: 10.1016/j.gca.2013.05.004
Moon, E.M. and Peacock, C.L. (2012) Adsorption of Cu(II) to ferrihydrite and ferrihydrite-bacteria composites: Importance of the carboxyl group for Cu mobility in natural environments. Geochimica et Cosmochimica Acta 92, 203-219. doi: 10.1016/j.gca.2012.06.012
Peacock, C.L. and Moon, E.M. (2012) Oxidative scavenging of thallium by birnessite: Explanation for thallium enrichment and stable isotope fractionation in marine ferromanganese precipitates. Geochimica et Cosmochimica Acta 84, 297-313. doi: 10.1016/j.gca.2012.01.036
Moon, E.M. and Peacock, C.L. (2011) Adsorption of Cu(II) to Bacillus subtilis: A pH-dependent EXAFS and thermodynamic modelling study. Geochimica et Cosmochimica Acta 75, 6705-6719. doi: 10.1016/j.gca.2011.08.004
Peacock, C.L. and Moon, E.M. (2013) Bioessential metal sorption at ferrihydrite-bacteria interfaces. Mineralogical Magazine 77(5), 1940. 10.1180/minmag.2013.077.5.16
Peacock CL, Nielsen SG, Wasylenki L, Moon EM & Rehkamper M (2012) Deciphering the Cenozoic Tl Isotope Record of Marine Ferromanganese Crusts- New Evidence from Adsorption Experiments. Mineralogical Magazine, 76(6), 2212.
Moon, E.M. and Peacock, C.L. (2010) Modelling trace-metal sorption to bacteriogenic iron oxides: Cu(II) and bacteriogenic ferrihydrite. Geochimica et Cosmochimica Acta, 74(12), Supp 1, A723.
Moon, E.M. and Peacock, C.L. (2009) Cu(II) sorption to Bacillus subtilis and bacteriogenic ferrihydrite: Insights from XAS spectroscopy. Geochimica et Cosmochimica Acta, 73(13), Supp 1, A898.
Peacock, C.L., Moon, E.M., Nielsen, S.G. and Halliday, A.N. (2009) Oxidative scavenging of Tl by Mn oxide birnessite: Sorption and stable isotope fractionation. Geochimica et Cosmochimica Acta, 73(13), Supp 1, A1003.
Peacock C.L. and Moon E.M. (2013) Copper-carboxyl binding provides a ubiquitous control on copper mobility in natural environments. Diamond Light Source Annual Review 2012/13. Available at http://diamond.ac.uk/Home/About/Corporate-Literature.html