Formation of catalytic nanoparticles via laser ablation in various environments and their degradation activity on methylene blue

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dc.contributor.authorVála, Lukáš
dc.contributor.authorKřenek, Tomáš
dc.contributor.authorKovářík, Tomáš
dc.contributor.authorMedlín, Rostislav
dc.contributor.authorPola, Josef
dc.contributor.authorVavruňková, Veronika
dc.contributor.authorPola, Michal
dc.contributor.editorKučerová, Ludmila
dc.contributor.editorJirková, Hana
dc.contributor.editorJeníček, Štěpán
dc.date.accessioned2021-12-15T12:28:42Z
dc.date.available2021-12-15T12:28:42Z
dc.date.issued2021
dc.description.abstract-translatedThere is a great interest in the synthesis of various nanosized green reusable catalysts which would better assist various chemical reactions in wastewater technologies. Pulsed laser irradiation of iron and cobalt sulphides in different environments (FeS in water and ethanol; CoS2 in vacuum) allows laser ablation and generation of FeS, CoS2 nano/micro particles. The FeS-derived colloidal nanoparticles were absorbed onto immersed porous ceramic substrates and create solar-light photocatalytic surfaces. CoS2-based films were deposited on Ta and Cu substrate. Generated nanoparticles were analyzed using scanning electron microscopy, Raman spectroscopy, X-ray photoelectron spectroscopy, high resolution electron microscopy and electron diffraction. These complementary analyses revealed that the film on Ta consists of the parent cubic CoS2 whereas the film on Cu exhibits a multiphase structure containing the cubic CoS2 and cubic Co2CuS4. In a case of FeS analysis reveal high-pressure orthorhombic FeS, cubic magnetite Fe3O4 and tetragonal maghemite γ-Fe2O3 produced in water, while those formed in ethanol contain hexagonal FeS and cubic magnetite Fe3O4. FeS-derived and CoS2-based nanoparticles were examined for their catalytic effect in Fenton degradation or photodegradation of methylene blue (MB).en
dc.description.sponsorshipPING Junior 2021 is organized with the support of funds for specific university research project SVK1-2021-008 and ERDF "Research of additive technologies for future applications in the machinery industry - RTI plus" (No. CZ.02.1.01/0.0/0.0/18_069/0010040).en
dc.format2 s.cs
dc.format.mimetypeapplication/pdf
dc.identifier.citationKUČEROVÁ, Ludmila ed.; JIRKOVÁ, Hana ed.; JENÍČEK, Štepán ed. Proceedings PING Junior 2021 - Modern Trends in Material Engineering 13–16 September 2022, Pilsen. 1. ed. Pilsen: University of West Bohemia, 2021, p. 14-15. ISBN 978-80-261-1042-2 .en
dc.identifier.urihttp://hdl.handle.net/11025/46337
dc.language.isoenen
dc.publisherUniversity of West Bohemiaen
dc.rights© University of West Bohemiaen
dc.rights.accessopenAccessen
dc.subjectpulzní laserová ablacecs
dc.subjectsulfidy železa a kobaltucs
dc.subjectFentonova degradacecs
dc.subjectfotodegradacecs
dc.subjectkatalýzacs
dc.subject.translatedpulsed laser ablationen
dc.subject.translatediron and cobalt sulphidesen
dc.subject.translatedFenton degradationen
dc.subject.translatedphotodegradationen
dc.subject.translatedcatalysisen
dc.titleFormation of catalytic nanoparticles via laser ablation in various environments and their degradation activity on methylene blueen
dc.typeconferenceObjecten
dc.typekonferenční příspěvekccs
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen

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Proceedings PING Junior 2021 - modern trends in material engineering
Proceedings PING 2021: modern trends in material engineering