Photocatalytic properties of rutile nanoparticles obtained via low temperature route from titanate nanotubes
Photocatalytic properties of rutile nanoparticles obtained via low temperature route from titanate nanotubes
Acid treatment of titanate nanotubes with 0.1 mol dm-3 H2SO4 results in their transformation into various forms of nanostructured TiO2, the shape and crystal structure of which depend on the temperature and time of treatment. Such a transformation at 25 ºC results in the formation of rutile spheroidal nanoparticles, which are characterised by good crystallinity, high specific surface area (ca 250 m2 g-1 BET) and small average diameter of particles (ca. 3 nm). These particles are also characterised by increased activity in reactions of both photocatalytic generation of hydrogen from alcohol and advanced oxidation of organic species (ethanol). Acid assisted transformation of nanotubes at higher temperatures results in formation of nanostructured anatase/titanate composites with lower photocatalytic activity. The mechanism of transformation and the reasons for increased activity of rutile nanoparticles are discussed
solvothermal synthesis, reflux, surface area, stability, mechanism, rutile nanoparticles, photocatalysis, hydrogen generation, advanced oxidation
231-238
Bavykin, Dmitry V.
1e9fabfc-d078-4585-876f-85ff33b7eed5
Kulak, Alexander N.
7dc57b4f-aae0-42a4-ae15-fd50ab6521c2
Shvalagin, Vitaly V.
9f96ba60-2602-4d12-9125-89b200e2edc5
Andryushina, Natalia S.
b92e62a1-450a-467d-ae49-ca420f6ec527
Stroyuk, Olexander L.
42e72144-0ddb-4fc3-b67a-de968b3da42d
February 2011
Bavykin, Dmitry V.
1e9fabfc-d078-4585-876f-85ff33b7eed5
Kulak, Alexander N.
7dc57b4f-aae0-42a4-ae15-fd50ab6521c2
Shvalagin, Vitaly V.
9f96ba60-2602-4d12-9125-89b200e2edc5
Andryushina, Natalia S.
b92e62a1-450a-467d-ae49-ca420f6ec527
Stroyuk, Olexander L.
42e72144-0ddb-4fc3-b67a-de968b3da42d
Bavykin, Dmitry V., Kulak, Alexander N., Shvalagin, Vitaly V., Andryushina, Natalia S. and Stroyuk, Olexander L.
(2011)
Photocatalytic properties of rutile nanoparticles obtained via low temperature route from titanate nanotubes.
Journal of Photochemistry and Photobiology A: Chemistry, 218 (2-3), .
(doi:10.1016/j.jphotochem.2011.01.006).
Abstract
Acid treatment of titanate nanotubes with 0.1 mol dm-3 H2SO4 results in their transformation into various forms of nanostructured TiO2, the shape and crystal structure of which depend on the temperature and time of treatment. Such a transformation at 25 ºC results in the formation of rutile spheroidal nanoparticles, which are characterised by good crystallinity, high specific surface area (ca 250 m2 g-1 BET) and small average diameter of particles (ca. 3 nm). These particles are also characterised by increased activity in reactions of both photocatalytic generation of hydrogen from alcohol and advanced oxidation of organic species (ethanol). Acid assisted transformation of nanotubes at higher temperatures results in formation of nanostructured anatase/titanate composites with lower photocatalytic activity. The mechanism of transformation and the reasons for increased activity of rutile nanoparticles are discussed
Text
2011-Photocatalytic_properties_of_rutile_nanoparticles_obtained_via_low_temperature_route_from_titanate_nanotubes.pdf
- Version of Record
Restricted to Repository staff only
Request a copy
More information
Published date: February 2011
Keywords:
solvothermal synthesis, reflux, surface area, stability, mechanism, rutile nanoparticles, photocatalysis, hydrogen generation, advanced oxidation
Organisations:
Engineering Mats & Surface Engineerg Gp
Identifiers
Local EPrints ID: 175775
URI: http://eprints.soton.ac.uk/id/eprint/175775
ISSN: 1010-6030
PURE UUID: 7adb34af-213a-4219-93ee-25ab4e81a447
Catalogue record
Date deposited: 28 Feb 2011 12:58
Last modified: 14 Mar 2024 02:37
Export record
Altmetrics
Contributors
Author:
Alexander N. Kulak
Author:
Vitaly V. Shvalagin
Author:
Natalia S. Andryushina
Author:
Olexander L. Stroyuk
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics