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Atmospheric Pressure Plasma Deposition of Hybrid Nanocomposite Coatings Containing TiO2 and Carbon-Based Nanomaterials.
Del Sole, Regina; Lo Porto, Chiara; Lotito, Sara; Ingrosso, Chiara; Comparelli, Roberto; Curri, Maria Lucia; Barucca, Gianni; Fracassi, Francesco; Palumbo, Fabio; Milella, Antonella.
Affiliation
  • Del Sole R; Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, 70125 Bari, Italy.
  • Lo Porto C; Istituto per i Processi Chimico Fisici, CNR, S.S. Bari, c/o Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, 70125 Bari, Italy.
  • Lotito S; Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, 70125 Bari, Italy.
  • Ingrosso C; Istituto per i Processi Chimico Fisici, CNR, S.S. Bari, c/o Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, 70125 Bari, Italy.
  • Comparelli R; Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali INSTM, Unita di Ricerca di Bari, 70126 Bari, Italy.
  • Curri ML; Istituto per i Processi Chimico Fisici, CNR, S.S. Bari, c/o Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, 70125 Bari, Italy.
  • Barucca G; Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali INSTM, Unita di Ricerca di Bari, 70126 Bari, Italy.
  • Fracassi F; Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, 70125 Bari, Italy.
  • Palumbo F; Istituto per i Processi Chimico Fisici, CNR, S.S. Bari, c/o Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, 70125 Bari, Italy.
  • Milella A; Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali INSTM, Unita di Ricerca di Bari, 70126 Bari, Italy.
Molecules ; 28(13)2023 Jun 30.
Article in En | MEDLINE | ID: mdl-37446794
ABSTRACT
Among the different applications of TiO2, its use for the photocatalytic abatement of organic pollutants has been demonstrated particularly relevant. However, the wide band gap (3.2 eV), which requires UV irradiation for activation, and the fast electron-hole recombination rate of this n-type semiconductor limit its photocatalytic performance. A strategy to overcome these limitations relies on the realization of a nanocomposite that combines TiO2 nanoparticles with carbon-based nanomaterials, such as rGO (reduced graphene oxide) and fullerene (C60). On the other hand, the design and realization of coatings formed of such TiO2-based nanocomposite coatings are essential to make them suitable for their technological applications, including those in the environmental field. In this work, aerosol-assisted atmospheric pressure plasma deposition of nanocomposite coatings containing both TiO2 nanoparticles and carbon-based nanomaterials, as rGO or C60, in a siloxane matrix is reported. The chemical composition and morphology of the deposited films were investigated for the different types of prepared nanocomposites by means of FT-IR, FEG-SEM, and TEM analyses. The photocatalytic activity of the nanocomposite coatings was evaluated through monitoring the photodegradation of methylene blue (MB) as a model organic pollutant. Results demonstrate that the nanocomposite coatings embedding rGO or C60 show enhanced photocatalytic performance with respect to the TiO2 counterpart. In particular, TiO2/C60 nanocomposites allow to achieve 85% MB degradation upon 180 min of UV irradiation.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Carbon / Nanocomposites Language: En Journal: Molecules Journal subject: BIOLOGIA Year: 2023 Document type: Article Affiliation country: Italy

Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Carbon / Nanocomposites Language: En Journal: Molecules Journal subject: BIOLOGIA Year: 2023 Document type: Article Affiliation country: Italy