Highly photoactive 2D titanium dioxide nanostructures prepared from lyophilized aqueous colloids of peroxo-polytitanic acid

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388980%3A_____%2F14%3A00429129" target="_blank" >RIV/61388980:_____/14:00429129 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.materresbull.2013.09.028" target="_blank" >http://dx.doi.org/10.1016/j.materresbull.2013.09.028</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.materresbull.2013.09.028" target="_blank" >10.1016/j.materresbull.2013.09.028</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Highly photoactive 2D titanium dioxide nanostructures prepared from lyophilized aqueous colloids of peroxo-polytitanic acid

Popis výsledku v původním jazyce

Reaction of hydrogen peroxide with suspensions of thoroughly washed precipitates obtained by neutralization of aqueous solution of titanyl sulfate with aqueous ammonia leads to transparent yellow liquids. In this way prepared colloid solution is a two phase system in which, beyond the water phase, also a liquid hydrated peroxo-polytitanic acid component is present. Freeze drying of this colloid liquid provides a foamy material consisting of thin foils of peroxo-polytitanic acid containing small but notnegligible amount of chemically bound ammonia. These foams annealed at temperature above similar to 200 degrees C lose water, ammonia and excess of oxygen providing foamy amorphous oxide. At higher temperatures above similar to 280 degrees C the amorphous material crystallizes to anatase which transforms at temperatures >850 degrees C to rutile. The size and shape of the initial leaflets forming the foam is preserved up to similar to 900 degrees C. Slit shaped porosity is formed during a

Název v anglickém jazyce

Highly photoactive 2D titanium dioxide nanostructures prepared from lyophilized aqueous colloids of peroxo-polytitanic acid

Popis výsledku anglicky

Reaction of hydrogen peroxide with suspensions of thoroughly washed precipitates obtained by neutralization of aqueous solution of titanyl sulfate with aqueous ammonia leads to transparent yellow liquids. In this way prepared colloid solution is a two phase system in which, beyond the water phase, also a liquid hydrated peroxo-polytitanic acid component is present. Freeze drying of this colloid liquid provides a foamy material consisting of thin foils of peroxo-polytitanic acid containing small but notnegligible amount of chemically bound ammonia. These foams annealed at temperature above similar to 200 degrees C lose water, ammonia and excess of oxygen providing foamy amorphous oxide. At higher temperatures above similar to 280 degrees C the amorphous material crystallizes to anatase which transforms at temperatures >850 degrees C to rutile. The size and shape of the initial leaflets forming the foam is preserved up to similar to 900 degrees C. Slit shaped porosity is formed during a

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CA - Anorganická chemie

OECD FORD obor

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Projekt

<a href="/cs/project/GA203%2F09%2F1117" target="_blank" >GA203/09/1117: Příprava fotokatalyzátorů na bázi Ti/O/Si laserovou depozicí z plynné fáze a sol-gel technikou</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Materials Research Bulletin

ISSN

0025-5408

e-ISSN

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Svazek periodika

49

Číslo periodika v rámci svazku

JAN

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

8

Strana od-do

405-412

Kód UT WoS článku

000330081400063

EID výsledku v databázi Scopus

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