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Well-Defined Crystalline TiO₂ Nanoparticles Generated and Immobilized on a Colloidal Nanoreactor

Title data

Lu, Yan ; Hoffmann, Martin ; Yelamanchili, Ram Sai ; Terrenoire, Alexandre ; Schrinner, Marc C. ; Drechsler, Markus ; Möller, Michael W. ; Breu, Josef ; Ballauff, Matthias:
Well-Defined Crystalline TiO₂ Nanoparticles Generated and Immobilized on a Colloidal Nanoreactor.
In: Macromolecular Chemistry and Physics. Vol. 210 (2009) Issue 5 . - pp. 377-386.
ISSN 1521-3935
DOI: https://doi.org/10.1002/macp.200800608

Abstract in another language

We synthesized well-defined, crystalline TiO2 nanoparticles at room temperature by using spherical polyelectrolyte brush particles as a template. The template particles consist of a polystyrene core from which long chains of poly(styrene sodium sulfonate) are grafted. Tetraethylorthotitanate is hydrolyzed in the presence of brush particles leading to the formation of well-dispersed TiO2 nanoparticles (d = 4∼12 nm). Wide-angle X-ray scattering demonstrates that anatase nanoparticles with high crystallinity have been generated at room temperature. The as-prepared TiO2 nanocomposites present high photocatalytic activity for the degradation of Rhodamine B under UV irradiation. Finally, mesoporous TiO2 structures with defined pore size are formed after calcination.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: crystalline; nanocomposite; photocatalyst; polyelectrolyte brushes; titania
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Anorganic Chemistry I > Chair Anorganic Chemistry I - Univ.-Prof. Dr. Josef Breu
Research Institutions
Research Institutions > Research Centres
Research Institutions > Research Centres > Bayreuth Institute of Macromolecular Research - BIMF
Research Institutions > Research Centres > Bayreuth Center for Colloids and Interfaces - BZKG
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Anorganic Chemistry I
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 01 Mar 2017 13:06
Last Modified: 23 Mar 2018 10:30
URI: https://eref.uni-bayreuth.de/id/eprint/36253