Název: A novel route of colloidal chemistry: room temperature reactive interactions between titanium monoxide and silicon monoxide sols produced by laser ablation in liquid resulting in the formation of titanium disilicide
Další názvy: Nová cesta koloidní chemie: reaktivní interakce mezi koloidním oxidem titanatým a oxidem křemnatým připraveným laserovou ablací v kapalině vedoucí ke vzniku disilicidu titanu za pokojové teploty
Autoři: Křenek, Tomáš
Vála, Lukáš
Medlín, Rostislav
Pola, Josef
Jandová, Věra
Vavruňková, Veronika
Mikysek, Petr
Bělský, Petr
Koštejn, Martin
Citace zdrojového dokumentu: KŘENEK, T. VÁLA, L. MEDLÍN, R. POLA, J. JANDOVÁ, V. VAVRUŇKOVÁ, V. MIKYSEK, P. BĚLSKÝ, P. KOŠTEJN, M. A novel route of colloidal chemistry: room temperature reactive interactions between titanium monoxide and silicon monoxide sols produced by laser ablation in liquid resulting in the formation of titanium disilicide. DALTON TRANSACTIONS, 2022, roč. 51, č. 36, s. 13831-13847. ISSN: 1477-9226
Datum vydání: 2022
Nakladatel: Royal Society of Chemistry
Typ dokumentu: článek
article
URI: 2-s2.0-85138151542
http://hdl.handle.net/11025/51329
ISSN: 1477-9226
Klíčová slova: koloidní reaktivita;laserová ablace v kapalinách;oxid titanatý;oxid křemnatý;disilicid titanu
Klíčová slova v dalším jazyce: colloidal reactivity;laser ablation in liquids;titanium monoxide;silicon monoxide;titanium disilicide
Abstrakt: In spite of advanced research on functional colloidal inorganic nanoparticles and their reactivity, room temperature reactive interactions between two different colloids have remained challenging so far. Laser ablation of titanium monoxide and silicon monoxide in ethanol and water allows the generation of TiOderived and SiO-derived colloidal nanoparticles which were characterized for their stability, size distribution and zeta potentials with dynamic light scattering and after evaporation of solvent examined for their morphology, chemical and phase composition by scanning electron microscopy, Raman spectroscopy, high resolution transmission electron microscopy and electron diffraction and small angle X-ray scattering. Aqueous and ethanolic TiO-derived colloids consist of anatase and monoclinic TiO, while ethanolic SiO derived colloids are composed of crystalline and amorphous Si, nanocrystalline Si and SiO2 and aqueous SiO-derived colloids contain, in addition to these phases, a high pressure form of cristobalite. Simple room temperature mixing of ethanolic TiO- and SiO-derived colloids allows the formation of TiSi2, which is a case of so far unreported room temperature reactive interactions between two colloidal species. All colloids absorb solar light and act as photocatalysts for methylene blue degradation. These findings present a challenge for further search for feasible room-temperature reactions between distinct colloidal particles and open the potential for green synthesis of other desirable and hardly achievable phases.
Abstrakt v dalším jazyce: In spite of advanced research on functional colloidal inorganic nanoparticles and their reactivity, room temperature reactive interactions between two different colloids have remained challenging so far. Laser ablation of titanium monoxide and silicon monoxide in ethanol and water allows the generation of TiOderived and SiO-derived colloidal nanoparticles which were characterized for their stability, size distribution and zeta potentials with dynamic light scattering and after evaporation of solvent examined for their morphology, chemical and phase composition by scanning electron microscopy, Raman spectroscopy, high resolution transmission electron microscopy and electron diffraction and small angle X-ray scattering. Aqueous and ethanolic TiO-derived colloids consist of anatase and monoclinic TiO, while ethanolic SiO derived colloids are composed of crystalline and amorphous Si, nanocrystalline Si and SiO2 and aqueous SiO-derived colloids contain, in addition to these phases, a high pressure form of cristobalite. Simple room temperature mixing of ethanolic TiO- and SiO-derived colloids allows the formation of TiSi2, which is a case of so far unreported room temperature reactive interactions between two colloidal species. All colloids absorb solar light and act as photocatalysts for methylene blue degradation. These findings present a challenge for further search for feasible room-temperature reactions between distinct colloidal particles and open the potential for green synthesis of other desirable and hardly achievable phases.
Práva: Plný text není přístupný.
© Royal Society of Chemistry
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Články / Articles
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