Magnetically guidable single TiO2 nanotube photocatalyst: Structure and photocatalytic properties
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F23%3APU147485" target="_blank" >RIV/00216305:26620/23:PU147485 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/00216275:25310/23:39920422
Výsledek na webu
<a href="https://www.sciencedirect.com/science/article/pii/S0272884222037786?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0272884222037786?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.ceramint.2022.10.197" target="_blank" >10.1016/j.ceramint.2022.10.197</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Magnetically guidable single TiO2 nanotube photocatalyst: Structure and photocatalytic properties
Popis výsledku v původním jazyce
The influence of annealing temperature, the crystallinity, textural properties of magnetically guidable anodic TiO2 nanotubes in form of single tube powders on the photocatalytic decomposition of model organic dye is investigated for the first time. The powders were prepared from self-organized anodic TiO2 nanotube layers (grown on Ti) by etching in piranha solution, detaching them from the Ti substrate, and annealing in a wide range of temperatures (400-900 degrees C). The nanotubular shape was preserved up to 800 degrees C. Powders annealed up to 800 degrees C did not contain any detectable rutile phase, which is unique among other TiO2 nanomaterials at this temperature. Part of the obtained TiO2 ST-NT powders was decorated with Fe3O4 nanoparticles using an oleic acid-based synthesis. The TiO2 ST-NT and TiO2 ST-NT@Fe3O4NPs powders were characterized in terms of morphology, crystallinity, and specific surface area. Finally, all materials were exploited for the photocatalytic decomposition of a model dye. The best photocatalytic performance of TiO2 ST-NT and TiO2 ST-NT@Fe3O4NPs powders were obtained at annealing temperatures of 600 and 700 degrees C, respectively. The synergy resulting from annealing, crystallite size, and specific surface area enhances the photocatalytic activity of TiO2 ST-NT and TiO2 ST-NT@Fe3O4NPs powders under UV light. This approach goes beyond the classical Kasuga alkaline hydrothermal approach, enabling the preparation of large quantity of TiO2 nanotubes without any impurities (such as e.g. Na or Ca content resulting from the Kasuga approach).
Název v anglickém jazyce
Magnetically guidable single TiO2 nanotube photocatalyst: Structure and photocatalytic properties
Popis výsledku anglicky
The influence of annealing temperature, the crystallinity, textural properties of magnetically guidable anodic TiO2 nanotubes in form of single tube powders on the photocatalytic decomposition of model organic dye is investigated for the first time. The powders were prepared from self-organized anodic TiO2 nanotube layers (grown on Ti) by etching in piranha solution, detaching them from the Ti substrate, and annealing in a wide range of temperatures (400-900 degrees C). The nanotubular shape was preserved up to 800 degrees C. Powders annealed up to 800 degrees C did not contain any detectable rutile phase, which is unique among other TiO2 nanomaterials at this temperature. Part of the obtained TiO2 ST-NT powders was decorated with Fe3O4 nanoparticles using an oleic acid-based synthesis. The TiO2 ST-NT and TiO2 ST-NT@Fe3O4NPs powders were characterized in terms of morphology, crystallinity, and specific surface area. Finally, all materials were exploited for the photocatalytic decomposition of a model dye. The best photocatalytic performance of TiO2 ST-NT and TiO2 ST-NT@Fe3O4NPs powders were obtained at annealing temperatures of 600 and 700 degrees C, respectively. The synergy resulting from annealing, crystallite size, and specific surface area enhances the photocatalytic activity of TiO2 ST-NT and TiO2 ST-NT@Fe3O4NPs powders under UV light. This approach goes beyond the classical Kasuga alkaline hydrothermal approach, enabling the preparation of large quantity of TiO2 nanotubes without any impurities (such as e.g. Na or Ca content resulting from the Kasuga approach).
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
21001 - Nano-materials (production and properties)
Návaznosti výsledku
Projekt
<a href="/cs/project/EF16_013%2F0001829" target="_blank" >EF16_013/0001829: Modernizace a upgrade infrastruktury CEMNAT</a><br>
Návaznosti
—
Ostatní
Rok uplatnění
2023
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
CERAMICS INTERNATIONAL
ISSN
0272-8842
e-ISSN
1873-3956
Svazek periodika
49
Číslo periodika v rámci svazku
4
Stát vydavatele periodika
GB - Spojené království Velké Británie a Severního Irska
Počet stran výsledku
8
Strana od-do
6764-6771
Kód UT WoS článku
000923654600001
EID výsledku v databázi Scopus
2-s2.0-85140217692