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Adsorbed Triblock Copolymers Deliver Reactive Iron Nanoparticles to the Oil/Water Interface
Abstract
Reactive zero valent iron nanoparticles can degrade toxic nonaqueous phase liquids (NAPL) rapidly in contaminated groundwater to nontoxic products in situ, provided they can be delivered preferentially to the NAPL/water (oil/water) interface. This study demonstrates the ability of novel triblock copolymers to modify the nanoiron surface chemistry in a way that both promotes their colloidal stability in aqueous suspension and drives their adsorption to the oil/water interface. The ability of the copolymers to drive adsorption is demonstrated by the ability of copolymer-modified iron nanoparticles, but not the unmodified iron nanoparticles, to stabilize oil-in-water emulsions.
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Cited by
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Self-citationNanoparticle Aggregation: Challenges to Understanding Transport and Reactivity in the Environment
Hotze, E. M., Phenrat, T., & Lowry, G. V. (2010) · Journal of Environmental Quality · doi:10.2134/jeq2009.0462 · Cited by 1,257
Self-citationAggregation and Sedimentation of Aqueous Nanoscale Zerovalent Iron Dispersions
Phenrat, T., Saleh, N., Sirk, K., Tilton, R. D., & Lowry, G. V. (2007) · Environmental Science & Technology · doi:10.1021/es061349a · Cited by 1,084
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Lu, F., & Astruc, D. (2020) · Coordination Chemistry Reviews · doi:10.1016/j.ccr.2020.213180 · Cited by 682
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Metadata
- Authors
- Saleh, N., Phenrat, T., Sirk, K., Dufour, B., Ok, J., Sarbu, T., Matyjaszewski, K., Tilton, R. D., & Lowry, G. V.
- Venue
- Nano Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2005-11-15
- Volume
- 5
- Issue
- 12
- Pages
- 2489-2494
- ISSN
- 1530-6984 (ISSN-L)
- 1530-6992
- OpenAlex
- W2029489124
- Cited by
- 319
- References
- 0
- FWCI
- 9.64
- Type
- journal article
- Language
- en
- Open access
- closed
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- Saleh, N., Phenrat, T., Sirk, K., Dufour, B., Ok, J., Sarbu, T., Matyjaszewski, K., Tilton, R. D., & Lowry, G. V. (2005). Adsorbed Triblock Copolymers Deliver Reactive Iron Nanoparticles to the Oil/Water Interface. Nano Letters. https://doi.org/10.1021/nl0518268
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