Stability and Aggregation of Metal Oxide Nanoparticles in Natural Aqueous Matrices
Tongji University · University of California System · +3 more institutions
Abstract
There is a pressing need for information on the mobility of nanoparticles in the complex aqueous matrices found in realistic environmental conditions. We dispersed three different metal oxide nanoparticles (TiO(2), ZnO and CeO(2)) in samples taken from eight different aqueous media associated with seawater, lagoon, river, and groundwater, and measured their electrophoretic mobility, state of aggregation, and rate of sedimentation. The electrophoretic mobility of the particles in a given aqueous media was dominated by the presence of natural organic matter (NOM) and ionic strength, and independent of pH. NOM adsorbed onto these nanoparticles significantly reduces their aggregation, stabilizing them under many…
Citation impact
- FWCI
- 39.06
- Percentile
- 100%
- References
- 34
Authors
8- AAArturo A. KellerCorresponding
Tongji University, University of California System, University of California, Santa Barbara, University of California, Davis, University of California, Los Angeles
- HWHongtao Wang
University of California, Los Angeles, University of California, Santa Barbara, Tongji University, University of California System, University of California, Davis
- DZDongxu Zhou
Tongji University, University of California, Davis, University of California, Santa Barbara, University of California System, University of California, Los Angeles
- HSHunter S. Lenihan
University of California, Davis, University of California, Los Angeles, University of California System, Tongji University, University of California, Santa Barbara
- GNGary N. Cherr
University of California System, University of California, Santa Barbara, University of California, Los Angeles, Tongji University, University of California, Davis
Topics & keywords
- Aqueous solution
- Nanoparticle
- Electrophoresis
- Ionic strength
- Oxide
- Chemistry
- Chemical engineering
- Seawater
- Life below water