CZ310089B6 - Způsob přípravy submikronových a/nebo mikronových vláken tvořených směsí krystalického TiO2 a V2O5 a tato submikronová a/nebo mikronová vlákna - Google Patents

Způsob přípravy submikronových a/nebo mikronových vláken tvořených směsí krystalického TiO2 a V2O5 a tato submikronová a/nebo mikronová vlákna Download PDF

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CZ310089B6
CZ310089B6 CZ2022-339A CZ2022339A CZ310089B6 CZ 310089 B6 CZ310089 B6 CZ 310089B6 CZ 2022339 A CZ2022339 A CZ 2022339A CZ 310089 B6 CZ310089 B6 CZ 310089B6
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vanadium
mixture
titanium
weight
stock solution
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CZ2022-339A
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Slovak (sk)
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CZ2022339A3 (cs
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Jan Macák
Jan Dr. Ing. Macák
Veronika Čičmancová
Veronika Ing. Čičmancová
Luděk Hromádko
Luděk Ing. Hromádko
Stanislav Ĺ lang
Šlang Stanislav Ing., Ph.D.
Roman Bulánek
Bulánek Roman prof. Ing., Ph.D.
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Univerzita Pardubice
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Priority to CZ2022-339A priority Critical patent/CZ310089B6/cs
Priority to PCT/CZ2022/050077 priority patent/WO2024037679A1/en
Publication of CZ2022339A3 publication Critical patent/CZ2022339A3/cs
Publication of CZ310089B6 publication Critical patent/CZ310089B6/cs

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Abstract

Je popsán způsob přípravy submikronových a/nebo mikronových vláken tvořených směsí krystalického TiO2 a V2O5, při kterém se smíchá zásobní roztok vanadu s koncentrací vanadu 0,3 až 0,65 M, který obsahuje šťavelanový komplex čtyřmocného vanadu, a zásobní roztok titanu s koncentrací titanu 0,3 až 0,65 M, který obsahuje amonium bisoxaláto-peroxotitanát, čímž se vytvoří směs s atomárním poměrem vanadu a titanu 0,1:99,9 až 99,9:0,1. Poté se z této směsi připraví roztok pro zvlákňování, který obsahuje 55 až 80 % hmotn., směsi zásobního roztoku vanadu a titanu, 15 až 25 % hmotn. polyvinylpyrolidonu nebo 5 až 16 % hmotn. polyetylenglykolu nebo 7 až 15 % hmotn. směsi polyvinylpyrolidonu a polyetylenglykolu a 0 až 40 % hmotn. vody. Z tohoto roztoku se zvlákňováním vytvoří prekurzorní vlákna s průměrem 450 až 6200 nm, která se při teplotě 390 až 450 °C kalcinují po dobu 45 až 75 minut, za vzniku výše uvedených submikronových a/nebo mikronových vláken.
CZ2022-339A 2022-08-16 2022-08-16 Způsob přípravy submikronových a/nebo mikronových vláken tvořených směsí krystalického TiO2 a V2O5 a tato submikronová a/nebo mikronová vlákna CZ310089B6 (cs)

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CZ2022-339A CZ310089B6 (cs) 2022-08-16 2022-08-16 Způsob přípravy submikronových a/nebo mikronových vláken tvořených směsí krystalického TiO2 a V2O5 a tato submikronová a/nebo mikronová vlákna
PCT/CZ2022/050077 WO2024037679A1 (en) 2022-08-16 2022-08-18 A method for the preparation of submicron and/or micron fibers formed by a mixture of crystalline tio2 and v2o5 and the submicron and/ or micron fibers prepared by this method

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CZ2022-339A CZ310089B6 (cs) 2022-08-16 2022-08-16 Způsob přípravy submikronových a/nebo mikronových vláken tvořených směsí krystalického TiO2 a V2O5 a tato submikronová a/nebo mikronová vlákna

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CZ2022339A3 CZ2022339A3 (cs) 2024-02-28
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US6399540B1 (en) * 1999-08-12 2002-06-04 Sumitomo Chemical Co., Ltd. Porous titania, catalyst comprising the porous titania

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Publication number Priority date Publication date Assignee Title
CZ2014444A3 (cs) * 2014-06-27 2016-01-06 Ústav fyzikální chemie J. Heyrovského AV ČR, v. v. i. Způsob přípravy anorganických nanovláken, zejména pro použití jako heterogenní katalyzátory, a anorganická nanovlákna

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Title
GHOSH, MONOJ, ET AL.: "Fabrication of hierarchical V2O5 nanorods on TiO2 nanofibers and their enhanced photocatalytic activity under visible light", CHEMCATCHEM, vol. 10, no. 15, 2018, pages 3305 - 3318, XP072435897, ISSN: 1867-3899 (Online), DOI: 10.1002/cctc.201800172 *

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