Magnetic Separation Dynamics of Colloidal Magnetic Nanoparticles
Abstract
Surface functionalized magnetic nanoparticles (MNPs) are appealing candidates for analytical separation of heavy metal ions from waste water and separation of actinides from spent nuclear fuel. This work studies the separation dynamics and investigates the appropriate magnetic-field gradients. A dynamic study of colloidal MNPs was performed for steady-state flow. Measurements were conducted to record the separation time of particles as a function of magnetic field gradient. The drag and magnetic forces play a significant role on the separation time. A drop in saturation magnetization and variation of particle size occurs after surface functionalization of the MNPs; these are the primary factors that affect the separation time and velocity of the MNPs. The experimental results are correlated to a theoretical one-dimensional model.
- Authors:
- Publication Date:
- Research Org.:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Environmental Molecular Sciences Lab. (EMSL)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1233799
- DOE Contract Number:
- AC05-76RL01830
- Resource Type:
- Journal Article
- Journal Name:
- IEEE Magnetics Letters
- Additional Journal Information:
- Journal Volume: 4; Journal Issue: 2013; Journal ID: ISSN 1949-307X
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 77 NANOSCIENCE AND NANOTECHNOLOGY; Environmental Molecular Sciences Laboratory
Citation Formats
Kaur, M., Huijin Zhang,, and You Qiang,. Magnetic Separation Dynamics of Colloidal Magnetic Nanoparticles. United States: N. p., 2013.
Web. doi:10.1109/LMAG.2013.2271744.
Kaur, M., Huijin Zhang,, & You Qiang,. Magnetic Separation Dynamics of Colloidal Magnetic Nanoparticles. United States. https://doi.org/10.1109/LMAG.2013.2271744
Kaur, M., Huijin Zhang,, and You Qiang,. 2013.
"Magnetic Separation Dynamics of Colloidal Magnetic Nanoparticles". United States. https://doi.org/10.1109/LMAG.2013.2271744.
@article{osti_1233799,
title = {Magnetic Separation Dynamics of Colloidal Magnetic Nanoparticles},
author = {Kaur, M. and Huijin Zhang, and You Qiang,},
abstractNote = {Surface functionalized magnetic nanoparticles (MNPs) are appealing candidates for analytical separation of heavy metal ions from waste water and separation of actinides from spent nuclear fuel. This work studies the separation dynamics and investigates the appropriate magnetic-field gradients. A dynamic study of colloidal MNPs was performed for steady-state flow. Measurements were conducted to record the separation time of particles as a function of magnetic field gradient. The drag and magnetic forces play a significant role on the separation time. A drop in saturation magnetization and variation of particle size occurs after surface functionalization of the MNPs; these are the primary factors that affect the separation time and velocity of the MNPs. The experimental results are correlated to a theoretical one-dimensional model.},
doi = {10.1109/LMAG.2013.2271744},
url = {https://www.osti.gov/biblio/1233799},
journal = {IEEE Magnetics Letters},
issn = {1949-307X},
number = 2013,
volume = 4,
place = {United States},
year = {Tue Jan 01 00:00:00 EST 2013},
month = {Tue Jan 01 00:00:00 EST 2013}
}