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Preparation and characterization of macroporous TiO2–SrTiO3 heterostructured monolithic photocatalyst

Ruzimuradov, Olim and Nurmanov, Suvankul and Hojamberdiev, Mirabbos and Prasad, Ravi Mohan and Gurlo, Alexander and Broetz, Joachim and Nakanishi, Kazuki and Riedel, Ralf (2014):
Preparation and characterization of macroporous TiO2–SrTiO3 heterostructured monolithic photocatalyst.
116, In: Materials Letters, Elsevier Science Publishing, pp. 353-355, ISSN 0167577X, [Online-Edition: http://dx.doi.org/10.1016/j.matlet.2013.11.065],
[Article]

Abstract

Macroporous TiO2 monolith was first prepared by the sol–gel method and then macroporous TiO2–SrTiO3 heterostructured monolith was obtained by the impregnation of the as-prepared macroporous TiO2 monolith in the strontium-containing aqueous solution followed by calcination at different temperatures. The formation of SrTiO3 crystals in the TiO2 network was confirmed by X-ray diffraction and electron microscopy analyses. Macroporous structure of the heterostructured monolith was analyzed by mercury porosimetry. The photocatalytic activity of macroporous TiO2–SrTiO3 heterostructured monolithic photocatalyst was evaluated for the photodegradation of Rhodamine B over the samples under visible light irradiation. The obtained results reveal that the samples show an enhanced photocatalytic activity for the degradation of organic dye molecules.

Item Type: Article
Erschienen: 2014
Creators: Ruzimuradov, Olim and Nurmanov, Suvankul and Hojamberdiev, Mirabbos and Prasad, Ravi Mohan and Gurlo, Alexander and Broetz, Joachim and Nakanishi, Kazuki and Riedel, Ralf
Title: Preparation and characterization of macroporous TiO2–SrTiO3 heterostructured monolithic photocatalyst
Language: English
Abstract:

Macroporous TiO2 monolith was first prepared by the sol–gel method and then macroporous TiO2–SrTiO3 heterostructured monolith was obtained by the impregnation of the as-prepared macroporous TiO2 monolith in the strontium-containing aqueous solution followed by calcination at different temperatures. The formation of SrTiO3 crystals in the TiO2 network was confirmed by X-ray diffraction and electron microscopy analyses. Macroporous structure of the heterostructured monolith was analyzed by mercury porosimetry. The photocatalytic activity of macroporous TiO2–SrTiO3 heterostructured monolithic photocatalyst was evaluated for the photodegradation of Rhodamine B over the samples under visible light irradiation. The obtained results reveal that the samples show an enhanced photocatalytic activity for the degradation of organic dye molecules.

Journal or Publication Title: Materials Letters
Volume: 116
Publisher: Elsevier Science Publishing
Uncontrolled Keywords: TiO2, SrTiO3, Porous materials, Nanoparticles, Semiconductors, Ceramics
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Dispersive Solids
11 Department of Materials and Earth Sciences > Material Science > Structure Research
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 21 Feb 2014 09:31
Official URL: http://dx.doi.org/10.1016/j.matlet.2013.11.065
Identification Number: doi:10.1016/j.matlet.2013.11.065
Funders: OR would like to thank the Erasmus – Mundus FAME (Functionalised Advanced Materials and Engineering) Master Programme for Visiting Scholarship under which the present study was carried out.
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