Changes in the nanoparticle aggregation rate due to the additional effect of electrostatic and magnetic forces on mass transport coefficients

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dc.contributor.authorRosická, Dana
dc.contributor.authorŠembera, Jan
dc.date.accessioned2016-05-24
dc.date.available2016-05-24
dc.date.issued2013
dc.description.abstractThe need may arise to be able to simulate the migration of groundwater nanoparticles through the ground. Transportation velocities of nanoparticles are different from that of water and depend on many processes that occur during migration. Unstable nanoparticles, such as zero-valent iron nanoparticles, are especially slowed down by aggregation between them. The aggregation occurs when attracting forces outweigh repulsive forces between the particles. In the case of iron nanoparticles that are used for remediation, magnetic forces between particles contribute to attractive forces and nanoparticles aggregate rapidly. This paper describes the addition of attractive magnetic forces and repulsive electrostatic forces between particles (by 'particle', we mean both single nanoparticles and created aggregates) into a basic model of aggregation which is commonly used. This model is created on the basis of the flow of particles in the proximity of observed particles that gives the rate of aggregation of the observed particle. By using a limit distance that has been described in our previous work, the flow of particles around one particle is observed in larger spacing between the particles. Attractive magnetic forces between particles draw the particles into closer proximity and result in aggregation. This model fits more closely with rapid aggregation which occurs between magnetic nanoparticles.en
dc.description.sponsorshipMinistry of Education of the Czech Republic of the Technical University in Liberec [7822]; Ministry of Education of the Czech Republic [FR-TI1/456]; Ministry of Industry and Trade
dc.formattext
dc.identifier.doi10.1186/1556-276X-8-20
dc.identifier.issn1931-7573
dc.identifier.urihttps://dspace.tul.cz/handle/15240/16349
dc.identifier.urihttps://nanoscalereslett.springeropen.com/articles/10.1186/1556-276X-8-20
dc.language.isoen
dc.publisherSpringer
dc.publisherTechnická Univerzita v Libercics
dc.publisherTechnical university of Liberec, Czech Republicen
dc.relation.ispartofNanoscale Research Lettersen
dc.sourcej-wok
dc.subjectMagnetic nanoparticlesen
dc.subjectaggregationen
dc.subjectMass transport coefficienten
dc.subjectLimit distanceen
dc.titleChanges in the nanoparticle aggregation rate due to the additional effect of electrostatic and magnetic forces on mass transport coefficientsen
dc.typeArticle
local.accessοpen
local.departmentInstitute of Novel Technologies and Applied Informatics
local.facultyFaculty of Mechatronics, Informatics and Interdisciplinary Studies
local.fulltextyes
local.identifier.pubmed23302651
local.identifier.wok316822400001
local.relation.volume8
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