Magnetic agglomeration method for size control …
@article{osti_1021904, title = {Magnetic agglomeration method for size control in the synthesis of magnetic nanoparticles}, author = {Huber, Dale L}, abstractNote = {A method for controlling the size of chemically synthesized magnetic nanoparticles that employs magnetic interaction between particles to control particle size and does not rely on conventional kinetic control of the reaction to ...
Reversible Magnetic Agglomeration: A …
We present a method for the synthesis and precise size control of magnetic nanoparticles in a reversible magnetic agglomeration mechanism. In this approach, nanoparticles nucleate and grow until a critical susceptibility is reached, in which magnetic attraction overcomes dispersive forces, leading to agglomeration and precipitation. This phase change in the system arrests nanoparticle growth ...
Aggregation effects on the magnetic properties of iron ...
agglomeration on the magnetic and heating properties of nanoparticles, a model system has been prepared and char-acterized for comparison with the already existing data. Our model system is based on MNPs of different sizes (14 and 22 nm) coated with different molecules. Particles with very narrow size distributions have been prepared by the same thermal decomposition method and with the same ...
(PDF) Magnetic-field-induced birefringence and …
Magnetic-field-induced birefringence and particle agglomeration in magnetic fluids Article (PDF Available) in Applied Physics Letters 89(21):211106 - 211106-3 · December 2006 with 206 Reads
Reversible Magnetic Agglomeration: A …
DOE PAGES Journal Article: Reversible Magnetic Agglomeration: A Mechanism for Thermodynamic Control over Nanoparticle Size. Reversible Magnetic Agglomeration: A Mechanism for Thermodynamic Control over Nanoparticle Size. Full Record; References (25) Other Related Research; Authors: Bleier, Grant C. [1]; Search DOE PAGES for author "Bleier, Grant C." Search DOE PAGES for ORCID "0000 …
Agglomeration of magnetic nanoparticles: The …
The formation of agglomerates by salt-induced double layer compression of magnetic nanoparticles in the absence and presence of an external magnetic field was investigated experimentally as well as computationally in this study. The structures of the agglomerates were analyzed through scanning electron microscopy and proved to be highly porous and composed of large spaces among the …
Nanoparticle impacts reveal magnetic field …
Nanoparticle impacts reveal magnetic field induced agglomeration and reduced dissolution rates ... Nanoparticle impacts reveal magnetic field induced agglomeration and reduced dissolution rates K. Tschulik and R. G. Compton, Phys. Chem. Chem. Phys., 2014, 16, 13909 DOI: 10.1039/C4CP01618A If you are not the author of this article and you wish to reproduce material from it in a third party non ...
Study about the nanoparticle agglomeration in a …
02.02.2017 · This stone presents a modelling study about the nanoparticle agglomeration in magnetic nanofluids. The colloidal magnetic nanoparticles size distribution is subjected to simultaneous translation and rotation movements under the action of conservative and dissipative forces, with their respective moments. In order to obtain the numerical solution of the coupled equations of motion, we use a ...
Magnetic nanoparticles - Wikipedia
Magnetic nanoparticles are a class of nanoparticle that can be manipulated using magnetic fields.Such particles commonly consist of two components, a magnetic material, often iron, nickel and cobalt, and a stone component that has functionality. While nanoparticles are smaller than 1 micrometer in diameter (typically 1–100 nanometers), the larger microbeads are 0.5–500 micrometer in ...
What is the main reason that nano particles get …
Question:What is the main reason that nano particles get agglomerated It would be best to describe a particle as a nano part of atom or matter or smallest unit of an element.
Particle aggregation - Wikipedia
Particle agglomeration refers to formation of assemblages in a suspension and represents a mechanism leading to the functional destabilization of colloidal systems. During this process, particles dispersed in the liquid phase stick to each other, and spontaneously …
The aggregation of iron oxide nanoparticles in …
The application of a magnetic field to a suspension of weakly magnetic nanoparticles should, based on previous work and theory, increase the aggregation between particles. This is due to the increase in the magnetic interaction in competition with repulsive forces due to the electric double layer. This hypothesis was tested using suspensions of magnetite and hematite nanoparticles.
Magnetic Agglomeration Gravity Separator_Disc …
The magnetic agglomeration gravity separation process can ensure that the concentrate yield or both the output and quality can be improved to a certain extent without the concentrate grade changed. This is mainly due to the high separation accuracy of this machine, which can effectively separate inclusions gangue and poor intergrowth with gangue in concentrate. Qualified concentrate can be ...
Multidimensional separation by magnetic hetero-agglomeration
Multidimensional separation by magnetic hetero-agglomeration Frank Rhein*, Hermann Nirschl* *Institute for Mechanical Process Engineering and Mechanics Karlsruhe Intitute of Technology (KIT); Straße am Forum 8 76131 Karlsruhe [email protected] 1. Aim The process commonly referred to as „Magnetic-seeded filtration” [1] aims to separate fine paramagnetic particles by agglomerating them ...
Agglomeration, colloidal stability, and magnetic ...
Abstract Magnetic nanoparticles (MNPs) which exhibit magnetic and catalytic bifunctionalities have been widely accepted as one of the most promising nanoagents used in water purification processes. However, due to the magnetic dipole-dipole interaction, MNPs can easily lose their colloidal stability and tend to …