About: Seawater Desalination via Hydrogels: Practical Realisation and First Coarse Grained Simulations

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About: Seawater Desalination via Hydrogels: Practical Realisation and First Coarse Grained Simulations Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We investigated and described a novel approach for water desalination using charged hydrogels under externally applied mechanical forces. The desalinationmechanism is based on the unequal distribution of an added salt between gel and surrounding solution phase. We synthesised acrylic acid-based hydrogels of various compositions and investigated their desalination properties with a specifically designed experimental press setup that allowed us to control online the force respective pressure exerted on the gel and to measure the water elution from the gel bed as well as the salt concentration of the eluate. A reference sodium chloride solution was used as a model for desalination applications. The experiments were augmented with a theoretical analysis within a mean-field Donnan model that can semiquantitatively explain the salt distribution and the desalination process. In addition we performed coarse-grained simulations with explicit ions and charged bead-spring polymers. The simulations provided reference data on well defined systems which could be directly compared with the theoretical predictions. This comparison provided valuable insights into the weak points of the mean-field theory and guidelines for its further development We investigated and described a novel approach for water desalination using charged hydrogels under externally applied mechanical forces. The desalinationmechanism is based on the unequal distribution of an added salt between gel and surrounding solution phase. We synthesised acrylic acid-based hydrogels of various compositions and investigated their desalination properties with a specifically designed experimental press setup that allowed us to control online the force respective pressure exerted on the gel and to measure the water elution from the gel bed as well as the salt concentration of the eluate. A reference sodium chloride solution was used as a model for desalination applications. The experiments were augmented with a theoretical analysis within a mean-field Donnan model that can semiquantitatively explain the salt distribution and the desalination process. In addition we performed coarse-grained simulations with explicit ions and charged bead-spring polymers. The simulations provided reference data on well defined systems which could be directly compared with the theoretical predictions. This comparison provided valuable insights into the weak points of the mean-field theory and guidelines for its further development (en)
Title	Seawater Desalination via Hydrogels: Practical Realisation and First Coarse Grained Simulations Seawater Desalination via Hydrogels: Practical Realisation and First Coarse Grained Simulations (en)
skos:prefLabel	Seawater Desalination via Hydrogels: Practical Realisation and First Coarse Grained Simulations Seawater Desalination via Hydrogels: Practical Realisation and First Coarse Grained Simulations (en)
skos:notation	RIV/00216208:11310/13:10292499!RIV15-MSM-11310___
http://linked.open...avai/riv/aktivita	I
http://linked.open...avai/riv/aktivity	I
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Košovan, Peter
http://linked.open.../riv/druhVysledku	C - Kapitola v knize
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Karlova v Praze / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	104345
http://linked.open...ai/riv/idVysledku	RIV/00216208:11310/13:10292499
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Absorption under load; Coarse grained simulations; Polyelectrolytes; Desalination; Donnan equilibrium; Hydrogels (en)
http://linked.open.../riv/klicoveSlovo	Desalination Hydrogels Polyelectrolytes Absorption under load Coarse grained simulations Donnan equilibrium
http://linked.open...ontrolniKodProRIV	[93F55563A99A]
http://linked.open...i/riv/mistoVydani	Cham
http://linked.open...vEdiceCisloSvazku	Progress in Colloid and Polymer Science, 140
http://linked.open...i/riv/nazevZdroje	Intelligent Hydrogels
http://linked.open...in/vavai/riv/obor	CD
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...v/pocetStranKnihy	279 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...UplatneniVysledku	2013
http://linked.open...iv/tvurceVysledku	Košovan, Peter Wilhelm, M. Richter, T. Holm, C. Höpfner, J.
number of pages	17 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Springer-Verlag
https://schema.org/isbn	978-3-319-01682-5
http://localhost/t...ganizacniJednotka	11310

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