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Biotemplated synthesis of nanostructured ZnO with enhanced visible light photocatalytic activity

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dc.title Biotemplated synthesis of nanostructured ZnO with enhanced visible light photocatalytic activity en
dc.contributor.author Masař, Milan
dc.contributor.author Machovský, Michal
dc.contributor.author Urbánek, Pavel
dc.contributor.author Urbánek, Michal
dc.contributor.author Kuřitka, Ivo
dc.relation.ispartof NANOCON 2017 - Conference Proceedings, 9th International Conference on Nanomaterials - Research and Application
dc.identifier.isbn 978-808729481-9
dc.date.issued 2018
utb.relation.volume 2017-October
dc.citation.spage 321
dc.citation.epage 326
dc.event.title 9th International Conference on Nanomaterials - Research and Application, NANOCON 2017
dc.event.location Brno
utb.event.state-en Czech Republic
utb.event.state-cs Česká republika
dc.event.sdate 2017-10-18
dc.event.edate 2017-10-20
dc.type conferenceObject
dc.language.iso en
dc.publisher TANGER Ltd.
dc.subject photocatalysis en
dc.subject semiconductor en
dc.subject LED diode en
dc.subject photocatalytic reactor en
dc.subject powder material en
dc.description.abstract Cotton wool was used as a biotemplate for the synthesis of nanostructured ZnO with enhanced visible light photocatalytic activity. Zn(II+) complexes were introduced into the structure of cotton fibers via evaporation of ammonia solution containing dissolved ZnO powder. Thermal decomposition of Zn(II+) impregnated biotemplate at 500 °C, 600 °C and 700 °C provides yellowish ZnO fine powder which retains the morphology of cotton wool fibers. The photocatalytic activities of both starting and biotemplated ZnO powders were evaluated from the time dependency of degradation of Methyl Violet 2B under the UV (λ~ 365 nm) and visible light (λ~ 400 nm and λ~ 425 nm) irradiation. Measurements were carried out online in UV-Vis spectrometer using a homemade cuvette holder housing equipped with an LED diode The degradation rate constant for biotemplated ZnO under visible light irradiation was 8 times higher than that of the starting ZnO. The significantly enhanced photocatalytic activity of biotemplated ZnO under visible light irradiation can be attributed to the intimate contact of the ZnO crystalline phase with residual carbonaceous species. © 2018 TANGER Ltd. All Rights Reserved. en
utb.faculty University Institute
dc.identifier.uri http://hdl.handle.net/10563/1008179
utb.identifier.obdid 43879731
utb.identifier.scopus 2-s2.0-85051870818
utb.identifier.wok 000452823300053
utb.source d-scopus
dc.date.accessioned 2018-08-30T13:31:27Z
dc.date.available 2018-08-30T13:31:27Z
dc.description.sponsorship Internal Grant Agency of Tomas Bata University in Zlin [IGA/CPS/2017/007]; Ministry of Education, Youth and Sports of the Czech Republic Program NPU I [LO1504]; Operational Program Research and Development for Innovations - European Regional Development Fund (ERDF); national budget of Czech Republic [CZ.1.05/2.1.00/19.0409]
dc.rights Attribution 4.0 International
dc.rights.uri https://creativecommons.org/licenses/by/4.0/
dc.rights.access openAccess
utb.ou Centre of Polymer Systems
utb.contributor.internalauthor Masař, Milan
utb.contributor.internalauthor Machovský, Michal
utb.contributor.internalauthor Urbánek, Pavel
utb.contributor.internalauthor Urbánek, Michal
utb.contributor.internalauthor Kuřitka, Ivo
utb.wos.affiliation [Masar, Milan; Machovsky, Michal; Urbanek, Pavel; Urbanek, Michal; Kuritka, Ivo] Tomas Bata Univ Zlin, Ctr Polymer Syst, Zlin, Czech Republic
utb.scopus.affiliation Centre of Polymer Systems, Tomas Bata University in Zlin, Czech Republic
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Attribution 4.0 International Except where otherwise noted, this item's license is described as Attribution 4.0 International