About: Bentonite and its modified derivates as adsorbents of lead

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The main objective was to study the removal of lead cations from aqueous solutions by sorption onto bentonite and its modifications. Modification included natrification by NaCl and intercalation by octadecylamine (ODA) in two different weight ratios. The sorption isotherms were described using the Langmuir and Freundlich models. The adsorptive capacities of the original bentonite increased after the intercalation of ODA. Adsorption of Pb ions, calculated by the Langmuir model, yielded 97.15mg of Pb ions on 1g of bentonite (a sample intercalated by ODA in the weight ratio bentonite:ODA of 1:0.75). This sample was the most suitable for lead adsorption. The natrified sample also achieved better values of uptake capacity than the untreated bentonite, however, the contrast was not so obvious. The mechanisms of lead uptake are ion-exchange adsorption onto untreated bentonite and ion exchange plus Pb2+ octadecylamine complexation on the modified bentonite. The main objective was to study the removal of lead cations from aqueous solutions by sorption onto bentonite and its modifications. Modification included natrification by NaCl and intercalation by octadecylamine (ODA) in two different weight ratios. The sorption isotherms were described using the Langmuir and Freundlich models. The adsorptive capacities of the original bentonite increased after the intercalation of ODA. Adsorption of Pb ions, calculated by the Langmuir model, yielded 97.15mg of Pb ions on 1g of bentonite (a sample intercalated by ODA in the weight ratio bentonite:ODA of 1:0.75). This sample was the most suitable for lead adsorption. The natrified sample also achieved better values of uptake capacity than the untreated bentonite, however, the contrast was not so obvious. The mechanisms of lead uptake are ion-exchange adsorption onto untreated bentonite and ion exchange plus Pb2+ octadecylamine complexation on the modified bentonite. (en)
Title	Bentonite and its modified derivates as adsorbents of lead Bentonite and its modified derivates as adsorbents of lead (en)
skos:prefLabel	Bentonite and its modified derivates as adsorbents of lead Bentonite and its modified derivates as adsorbents of lead (en)
skos:notation	RIV/61989100:27350/11:86078299!RIV14-MSM-27350___
http://linked.open...avai/predkladatel	Hornicko-geologická fakulta
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(1M06007)
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Nezvalová, Lucie Čablík, Vladimír
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoká škola báňská - Technická univerzita Ostrava / Hornicko-geologická fakulta
http://linked.open...dnocenehoVysledku	188026
http://linked.open...ai/riv/idVysledku	RIV/61989100:27350/11:86078299
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	adsorption, bentonite, modification, sorption isotherm, lead. (en)
http://linked.open.../riv/klicoveSlovo	bentonite lead. modification sorption isotherm adsorption
http://linked.open...ontrolniKodProRIV	[28D4CD5F49C2]
http://linked.open...v/mistoKonaniAkce	Albena
http://linked.open...i/riv/mistoVydani	Sofia
http://linked.open...i/riv/nazevZdroje	11th International Multidisciplinary Scientific GeoConference SGEM 2011 (1.-3. díl)
http://linked.open...in/vavai/riv/obor	DJ
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	RESEARCH CENTRE FOR INTEGRATED SYSTEM DEVELOPMENT CONCERNING UTILISATION OF BY-PRODUCTS OF ENERGY RESOURCE MINING AND PROCESSING (RCforDIS)
http://linked.open...UplatneniVysledku	2011
http://linked.open...iv/tvurceVysledku	Fusová, Lenka Nezvalová, Lucie Čablík, Vladimír
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open...ain/vavai/riv/wos	000307366500028
http://linked.open.../riv/zahajeniAkce	2011-06-20 (xsd:date)
issn	1314-2704
number of pages	8 (xsd:int)
http://bibframe.org/vocab/doi	10.5593/SGEM2011/S20.107
http://purl.org/ne...btex#hasPublisher	STEF92 Technology Ltd.
http://localhost/t...ganizacniJednotka	27350

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