Extruded Expanded Polystyrene Sheets Coated by TiO2 as New Photocatalitic Materials for Foodstuffs Packaging

Giuseppe Marci', Leonardo Palmisano, Vittorio Loddo, Giovanni Palmisano, Sedat Yurdakal, Garavaglia, Brazzoli

Risultato della ricerca: Article

9 Citazioni (Scopus)

Abstract

Nanostructured, photoactive anatase TiO2 sol prepared under very mild conditions using titanium tetraisopropoxide as the precursor is used to functionalise extruded expanded polystyrene (XPS) sheets by spray-coating resulting in stable and active materials functionalised by TiO2 nanoparticles. Photocatalytic tests of these sheets performed in a batch reactor in gas–solid system under UV irradiation show their successful activity in degrading probe molecules (2-propanol, trimethylamine and ethene). Raman spectra ensure the deposition of TiO2 as crystalline anatase phase on the polymer surface. The presence of TiO2 with respect to polymer surface can be observed in SEM images coupled to EDAX mapping allowing to monitor the surface morphology and the distribution of TiO2 particles. Finally thermoforming of these sheets in industrial standard equipment leads to useful containers for foodstuffs.
Lingua originaleEnglish
pagine (da-a)783-788
Numero di pagine6
RivistaApplied Surface Science
Volume261
Stato di pubblicazionePublished - 2012

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Polystyrenes
Titanium dioxide
Packaging
Polymers
Thermoforming
2-Propanol
Batch reactors
Propanol
Polymethyl Methacrylate
Sols
Surface morphology
Containers
Raman scattering
Energy dispersive spectroscopy
X ray photoelectron spectroscopy
Titanium
Gases
Irradiation
Nanoparticles
Crystalline materials

All Science Journal Classification (ASJC) codes

  • Surfaces, Coatings and Films

Cita questo

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title = "Extruded Expanded Polystyrene Sheets Coated by TiO2 as New Photocatalitic Materials for Foodstuffs Packaging",
abstract = "Nanostructured, photoactive anatase TiO2 sol prepared under very mild conditions using titanium tetraisopropoxide as the precursor is used to functionalise extruded expanded polystyrene (XPS) sheets by spray-coating resulting in stable and active materials functionalised by TiO2 nanoparticles. Photocatalytic tests of these sheets performed in a batch reactor in gas–solid system under UV irradiation show their successful activity in degrading probe molecules (2-propanol, trimethylamine and ethene). Raman spectra ensure the deposition of TiO2 as crystalline anatase phase on the polymer surface. The presence of TiO2 with respect to polymer surface can be observed in SEM images coupled to EDAX mapping allowing to monitor the surface morphology and the distribution of TiO2 particles. Finally thermoforming of these sheets in industrial standard equipment leads to useful containers for foodstuffs.",
author = "Giuseppe Marci' and Leonardo Palmisano and Vittorio Loddo and Giovanni Palmisano and Sedat Yurdakal and Garavaglia and Brazzoli",
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T1 - Extruded Expanded Polystyrene Sheets Coated by TiO2 as New Photocatalitic Materials for Foodstuffs Packaging

AU - Marci', Giuseppe

AU - Palmisano, Leonardo

AU - Loddo, Vittorio

AU - Palmisano, Giovanni

AU - Yurdakal, Sedat

AU - Garavaglia, null

AU - Brazzoli, null

PY - 2012

Y1 - 2012

N2 - Nanostructured, photoactive anatase TiO2 sol prepared under very mild conditions using titanium tetraisopropoxide as the precursor is used to functionalise extruded expanded polystyrene (XPS) sheets by spray-coating resulting in stable and active materials functionalised by TiO2 nanoparticles. Photocatalytic tests of these sheets performed in a batch reactor in gas–solid system under UV irradiation show their successful activity in degrading probe molecules (2-propanol, trimethylamine and ethene). Raman spectra ensure the deposition of TiO2 as crystalline anatase phase on the polymer surface. The presence of TiO2 with respect to polymer surface can be observed in SEM images coupled to EDAX mapping allowing to monitor the surface morphology and the distribution of TiO2 particles. Finally thermoforming of these sheets in industrial standard equipment leads to useful containers for foodstuffs.

AB - Nanostructured, photoactive anatase TiO2 sol prepared under very mild conditions using titanium tetraisopropoxide as the precursor is used to functionalise extruded expanded polystyrene (XPS) sheets by spray-coating resulting in stable and active materials functionalised by TiO2 nanoparticles. Photocatalytic tests of these sheets performed in a batch reactor in gas–solid system under UV irradiation show their successful activity in degrading probe molecules (2-propanol, trimethylamine and ethene). Raman spectra ensure the deposition of TiO2 as crystalline anatase phase on the polymer surface. The presence of TiO2 with respect to polymer surface can be observed in SEM images coupled to EDAX mapping allowing to monitor the surface morphology and the distribution of TiO2 particles. Finally thermoforming of these sheets in industrial standard equipment leads to useful containers for foodstuffs.

UR - http://hdl.handle.net/10447/73686

M3 - Article

VL - 261

SP - 783

EP - 788

JO - Applied Surface Science

JF - Applied Surface Science

SN - 0169-4332

ER -