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Colloid and Polymer Science
Erschienen in: Colloid and Polymer Science 1/2014

01.01.2014 | Original Contribution

Photocatalytic performance of silver-modified TiO2 embedded in poly(ethyl-acrylate-co-methyl metacrylate) matrix

verfasst von: Ágnes Veres, Judit Ménesi, Ádám Juhász, Ottó Berkesi, Nóra Ábrahám, Gabriella Bohus, Albert Oszkó, Gábor Pótári, Norbert Buzás, László Janovák, Imre Dékány

Erschienen in: Colloid and Polymer Science | Ausgabe 1/2014

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Abstract

The plasmonic Ag-TiO2 (with 0.5 wt% Ag) photocatalyst was prepared on P25 TiO2 surface. The presence of AgNPs on the titania was indicated by the UV–vis spectrum, which showed a plasmonic absorbance band in the visible range (λ max = 455 nm). XPS measurements suggested that Ag was in metallic (Ag) and in oxide forms on TiO2. Ag-TiO2 photocatalyst and TiO2 were embedded in [poly(ethyl acrylate-co-methyl methacrylate; p(EA-co-MMA)] copolymer to attain mechanically stable, photocatalytically active nanocomposite films. The photooxidation of ethanol was slower on the photocatalyst/polymer nanocomposites, but it could be significantly improved by irradiating them with UV light. The photoaging was applied as a post-preparation treatment to improve the photocatalytic activity of the nanocomposite films. Changed surface morphology and the partial destruction of the polymer were supported by AFM and FTIR results. Contact angle measurements were used to determine the surface free energies of the prepared and the photoaged nanocomposite films.
Vorheriger Artikel Soap-free emulsion polymerization of poly (methyl methacrylate-co-butyl acrylate): effects of anionic comonomers and methanol on the different characteristics of the latexes
Nächster Artikel A new type of monodisperse porous, hydrophilic microspheres with reactive chloroalkyl functionality: synthesis and derivatization properties

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Metadaten
Titel
Photocatalytic performance of silver-modified TiO2 embedded in poly(ethyl-acrylate-co-methyl metacrylate) matrix
verfasst von
Ágnes Veres
Judit Ménesi
Ádám Juhász
Ottó Berkesi
Nóra Ábrahám
Gabriella Bohus
Albert Oszkó
Gábor Pótári
Norbert Buzás
László Janovák
Imre Dékány
Publikationsdatum
01.01.2014
Verlag
Springer Berlin Heidelberg
Erschienen in
Colloid and Polymer Science / Ausgabe 1/2014
Print ISSN: 0303-402X
Elektronische ISSN: 1435-1536
DOI
https://doi.org/10.1007/s00396-013-3063-1

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