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

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

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

Original language description

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

Czech name

—

Czech description

—

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CA - Inorganic chemistry

OECD FORD branch

—

Project

<a href="/en/project/GA203%2F09%2F1117" target="_blank" >GA203/09/1117: Preparation of Ti/O/Si based photocatalysts by laser induced CVD and sol-gel technique</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2014

Confidentiality

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

Name of the periodical

Materials Research Bulletin

ISSN

0025-5408

e-ISSN

—

Volume of the periodical

49

Issue of the periodical within the volume

JAN

Country of publishing house

GB - UNITED KINGDOM

Number of pages

8

Pages from-to

405-412

UT code for WoS article

000330081400063

EID of the result in the Scopus database

—