About: Optical properties of ZnS nanoparticles precipitated at various molar ratios of sulphide and zinc ions and stabilized by CTAB

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About: Optical properties of ZnS nanoparticles precipitated at various molar ratios of sulphide and zinc ions and stabilized by CTAB Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	ZnS nanoparticles were precipitated by the reaction of zinc and sulphide ions in aqueous media and stabilized by cetyltrimethylammonium bromide (CTAB). The nanoparticles size (diameter) was calculated using the relationship between band-gap energy and radius as a result of the quantum size effect. Depending on the molar ratio of precursors S2-/Zn2+ = 0.25–2.0 and time elapsed from their preparation t = 0–5 h the nanoparticles with size of 3.5–4.8 nm were obtained. The absorption of UV radiation and photoluminescence (PL) of the nanoparticles dispersions were studied. The nanoparticles growth in the dependence of time and the S2-/Zn2+ ratio was indicated by changes in UV absorption and PL spectra. The stabilization effect of CTAB was observed for all S2-/Zn2+ ratios up to 5 hours. At the longer time intervals (3 a 4 days) flocs of the ZnS nanoparticles and CTAB were observed. ZnS nanoparticles were precipitated by the reaction of zinc and sulphide ions in aqueous media and stabilized by cetyltrimethylammonium bromide (CTAB). The nanoparticles size (diameter) was calculated using the relationship between band-gap energy and radius as a result of the quantum size effect. Depending on the molar ratio of precursors S2-/Zn2+ = 0.25–2.0 and time elapsed from their preparation t = 0–5 h the nanoparticles with size of 3.5–4.8 nm were obtained. The absorption of UV radiation and photoluminescence (PL) of the nanoparticles dispersions were studied. The nanoparticles growth in the dependence of time and the S2-/Zn2+ ratio was indicated by changes in UV absorption and PL spectra. The stabilization effect of CTAB was observed for all S2-/Zn2+ ratios up to 5 hours. At the longer time intervals (3 a 4 days) flocs of the ZnS nanoparticles and CTAB were observed. (en)
Title	Optical properties of ZnS nanoparticles precipitated at various molar ratios of sulphide and zinc ions and stabilized by CTAB Optical properties of ZnS nanoparticles precipitated at various molar ratios of sulphide and zinc ions and stabilized by CTAB (en)
skos:prefLabel	Optical properties of ZnS nanoparticles precipitated at various molar ratios of sulphide and zinc ions and stabilized by CTAB Optical properties of ZnS nanoparticles precipitated at various molar ratios of sulphide and zinc ions and stabilized by CTAB (en)
skos:notation	RIV/61989100:27360/12:86083744!RIV13-GA0-27360___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(ED0040/01/01), P(GAP107/11/1918)
http://linked.open...iv/cisloPeriodika	10
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Praus, Petr Kozák, Ondřej
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	Vysoká škola báňská - Technická univerzita Ostrava / Fakulta metalurgie a materiálového inženýrství
http://linked.open...dnocenehoVysledku	156756
http://linked.open...ai/riv/idVysledku	RIV/61989100:27360/12:86083744
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	photoluminescence; UV absorption; particle size; ZnS nanoparticles precursors ratio (en)
http://linked.open.../riv/klicoveSlovo	particle size photoluminescence UV absorption ZnS nanoparticles precursors ratio
http://linked.open...odStatuVydavatele	RO - Rumunsko
http://linked.open...ontrolniKodProRIV	[8B9871509E65]
http://linked.open...i/riv/nazevZdroje	Chalcogenide Letters
http://linked.open...in/vavai/riv/obor	JI
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Regional materials science and technology centre Research of the zinc and cadmium sulphide nanoparticles deposited on phyllosilicates for the photocatalytic reduction of carbon dioxide
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	9
http://linked.open...iv/tvurceVysledku	Dvorský, Richard Kozák, Ondřej Praus, Petr
http://linked.open...ain/vavai/riv/wos	000312712800003
issn	1584-8663
number of pages	7 (xsd:int)
http://localhost/t...ganizacniJednotka	27360

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