About: Environmental Applications of Chemically Pure Natural Ferrihydrite

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Fresh precipitates, deposited from seepage waters of complex-ore mine-tailing impoundment at Zlaté Hory, Czech Republic, were characterized by means of X-ray diffraction, transmission electron microscopy, low temperature and infield Mössbauer spectroscopy, and Brunauer-Emmett-Teller surface area measurements. The prevailing phases ( cca 96 wt %) found in precipitates are poorly crystalline, 2-6 nm sized two-line ferrihydrite, forming globular aggregates of about 150 nm in diameter, rimmed by acicular irregular nanocrystals of goethite. These nanocrystalline ferrihydrite-goethite precipitates are of a relatively high chemical purity (cca 3% SiO2, Zn cca 1300 ppm, trace and rare earth elements <100 ppm) and thus applicable in various nanotechnologies. With a surface area of 270 m2 g-1, precipitate possesses a high catalytic activity in the decomposition of hydrogen peroxide, which is comparable with that found for commercially accessible FeO(OH) catalyst. Another superior aspect of such natural nano Fresh precipitates, deposited from seepage waters of complex-ore mine-tailing impoundment at Zlaté Hory, Czech Republic, were characterized by means of X-ray diffraction, transmission electron microscopy, low temperature and infield Mössbauer spectroscopy, and Brunauer-Emmett-Teller surface area measurements. The prevailing phases ( cca 96 wt %) found in precipitates are poorly crystalline, 2-6 nm sized two-line ferrihydrite, forming globular aggregates of about 150 nm in diameter, rimmed by acicular irregular nanocrystals of goethite. These nanocrystalline ferrihydrite-goethite precipitates are of a relatively high chemical purity (cca 3% SiO2, Zn cca 1300 ppm, trace and rare earth elements <100 ppm) and thus applicable in various nanotechnologies. With a surface area of 270 m2 g-1, precipitate possesses a high catalytic activity in the decomposition of hydrogen peroxide, which is comparable with that found for commercially accessible FeO(OH) catalyst. Another superior aspect of such natural nano (en)
Title	Environmental Applications of Chemically Pure Natural Ferrihydrite Environmental Applications of Chemically Pure Natural Ferrihydrite (en)
skos:prefLabel	Environmental Applications of Chemically Pure Natural Ferrihydrite Environmental Applications of Chemically Pure Natural Ferrihydrite (en)
skos:notation	RIV/61989592:15310/07:00003598!RIV10-MSM-15310___
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(1M0512), P(GA205/04/1292), P(KAN108040651), Z(AV0Z20410507), Z(MSM6198959218)
http://linked.open...iv/cisloPeriodika	12
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Schneeweiss, Oldřich Zbořil, Radek Filip, Jan Otyepka, Michal
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Palackého v Olomouci / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	420239
http://linked.open...ai/riv/idVysledku	RIV/61989592:15310/07:00003598
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Ferrihydrite; X-ray; iron-oxide (en)
http://linked.open.../riv/klicoveSlovo	Ferrihydrite X-ray iron-oxide
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[38612D017362]
http://linked.open...i/riv/nazevZdroje	Environmental Science & Technology
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	7 (xsd:int)
http://linked.open...vavai/riv/projekt	Research center of powdered nanomaterials Research of production and application of zero-valent iron nanoparticles for remediation of contaminated goundwater Geochemistry and mineralogy of acid mine drainage precipitates
http://linked.open...UplatneniVysledku	2007
http://linked.open...v/svazekPeriodika	41
http://linked.open...iv/tvurceVysledku	Filip, Jan Kvapil, Petr Otyepka, Michal Schneeweiss, Oldřich Zbořil, Radek Zeman, Josef Černík, M.
http://linked.open...n/vavai/riv/zamer	Physical properties of advanced materials in relation to their microstructure and processing Komplexní sloučeniny a oxidy přechodných kovů s využitím v bioaplikacích a nanotechnologiích
issn	0013-936X
number of pages	8 (xsd:int)
http://localhost/t...ganizacniJednotka	15310
is http://linked.open...avai/riv/vysledek of	Environmental Applications of Chemically Pure Natural Ferrihydrite Environmental Applications of Chemically Pure Natural Ferrihydrite Environmental Applications of Chemically Pure Natural Ferrihydrite

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