The Reaction Specificity of Nanoparticles in Solution: Interactions between Iron Nanoparticles, their Coatings, and the Environment
EMSL Project ID
35204
Abstract
The objective of our research is to obtain fundamental information about the physical and chemical transformations that occur on and within mineral oxide nanoparticulates due to electron transfer reactions and other interactions with their local environment (including solution contaminants such as CCl4). The nature of the reactive surfaces, the accessibility of reactive sites, and the structures of the surface and interface layers (or whole nanoparticles) often change significantly as particles respond to and react with their local environment (e.g. surface structure alterations, phase changes, passive layer formation). Although geochemically induced changes occur for bulk materials, the nature and rate for the changes can be more dramatic for nano-sized mineral phases. This project focuses on obtaining information about these geochemically mediated transformations and how they alter particle reactivity, electron availability and particle mobility. Natural particles and specially grown model particles are used to study particle transformations, interfacial reaction products and particulate reactivity. The particles examined (and to be examined) include different sizes of iron (Fe(0)) nanoparticles, magnetite particles, and iron (hydr)oxide particles that can coat the Fe(0) surface. Electron transfer initiated transformations have been studied using carbon tetrachloride, a probe molecule of surface reactivity that is not incorporated into the surface structure.
Project Details
Project type
Large-Scale EMSL Research
Start Date
2009-10-06
End Date
2012-09-30
Status
Closed
Released Data Link
Team
Principal Investigator
Team Members
Related Publications
Alexandra Salter-Blanc and Paul G. Tratnyek, 2011. Effects of Solution Chemistry on the Dechlorination of 1,2,3-Trichloropropane by Zero-Valent Zinc, Environ. Sci. Technol. 2011, 45, 4073-4079.
Baer DR. 2011. "Surface Characterization of Nanoparticles: Critical Needs and Significant Challenges." Journal of Surface Analysis 17(3):163-169.
Baer DR. 2012. "Application of Surface Analysis Methods to Nanomaterials: Summaryof ISO/TC 201 Technical Report: ISO 14187:2011 -Surface Chemical Analysis- Characterization of Nanomaterials." Surface and Interface Analysis 44(9):1305-1308. doi:10.1002/sia.4938
Baer DR. 2012. "Summary of ISO/TC 201 Technical Report: ISO 14187:2011 – Surface Chemical Analysis - Characterization of Nanomaterials." PNNL-SA-85889, Pacific Northwest National Laboratory, Richland, WA.
Baer D.R. 2018. "The Chameleon Effect: characterization challenges due to the variability of nanoparticles and their surfaces." Frontiers in Chemistry 6. PNNL-SA-131780. doi:10.3389/fchem.2018.00145
Baer DR, and MH Engelhard. 2010. "XPS Analysis of Nanostructured Materials and Biological Surfaces." Journal of Electron Spectroscopy and Related Phenomena 178-179:415-432. doi:10.1016/j.elspec.2009.09.003
Baer D.R., A.S. Karakoti, C.A. Clifford, C. Minelli, and W.E. Unger. 2018. "Importance of sample preparation on reliable surface characterisation of nano-objects: ISO Standard 20579-4." Surface and Interface Analysis 50, no. 9:902-906. PNNL-SA-135106. doi:10.1002/sia.6490
Baer DR, DJ Gaspar, P Nachimuthu, SD Techane, and DG Castner. 2010. "Application of Surface Chemical Analysis Tools for Characterization of Nanoparticles." Analytical and Bioanalytical Chemistry 396(3):983-1002. doi: 10.1007/s00216-009-3360-1
Baer DR, MH Engelhard, GE Johnson, J Laskin, J Lai, KT Mueller, P Munusamy, S Thevuthasan, H Wang, NM Washton, AC Elder, BL Baisch, AS Karakoti, SVNT Kuchibhatla, and DW Moon. 2013. "Surface Characterization of Nanomaterials and Nanoparticles: important needs and challenging opportunities." Journal of Vacuum Science and Technology A--Vacuum, Surfaces and Films 31(5):Article No. 050820. doi:10.1116/1.4818423.
Baer DR, P Munusamy, and BD Thrall. 2016. "Provenance information as a tool for addressing engineered nanoparticle reproducibility challenges." Biointerphases 11(4):Article No. 04B401. doi:10.1116/1.4964867
Chun CL, DR Baer, DW Matson, JE Amonette, and RL Penn. 2010. "Characterization and Reactivity of Iron Nanoparticles Prepared with Added Cu, Pd, and Ni." Environmental Science & Technology 44(13):5079-5085. doi: 10.1021/es903278e
Kaur M, JS Mccloy, RK Kukkadapu, CI Pearce, J Tucek, ME Bowden, MH Engelhard, E Arenholz, and Y Qiang. 2017. "TETRAGONAL LIKE PHASE IN CORE-SHELL IRON IRON-OXIDE." Journal of Physical Chemistry C 121(21):11794-11803. doi:10.1021/acs.jpcc.7b01469
Nurmi J, V Sarathy, PG Tratnyek, DR Baer, JE Amonette, and AJ Karkamkar. 2011. "Recovery of Iron/Iron Oxide Nanoparticles from Solution: Comparison of Methods and their Effects." Journal of Nanoparticle Research 13(5):1937-1952. doi:10.1007/s11051-010-9946-x