Photochromic Textiles Based upon Aqueous Blends of Oxygen-Deficient WO3-x and TiO2 Nanocrystals

Roberto Giannuzzi; Vitantonio Primiceri; Riccardo Scarfiello; Marco Pugliese; Fabrizio Mariano; Antonio Maggiore; Carmela Tania Prontera; Sonia Carallo; Cristian De Vito; Luigi Carbone; Vincenzo Maiorano

doi:10.3390/textiles2030021

Textiles (Jul 2022)

Photochromic Textiles Based upon Aqueous Blends of Oxygen-Deficient WO3-x and TiO2 Nanocrystals

Roberto Giannuzzi,
Vitantonio Primiceri,
Riccardo Scarfiello,
Marco Pugliese,
Fabrizio Mariano,
Antonio Maggiore,
Carmela Tania Prontera,
Sonia Carallo,
Cristian De Vito,
Luigi Carbone,
Vincenzo Maiorano

Affiliations

Roberto Giannuzzi: CNR NANOTEC—Institute of Nanotechnology c/o Campus Ecotekne, University of Salento, Via Monteroni, 73100 Lecce, Italy
Vitantonio Primiceri: CNR NANOTEC—Institute of Nanotechnology c/o Campus Ecotekne, University of Salento, Via Monteroni, 73100 Lecce, Italy
Riccardo Scarfiello: CNR NANOTEC—Institute of Nanotechnology c/o Campus Ecotekne, University of Salento, Via Monteroni, 73100 Lecce, Italy
Marco Pugliese: CNR NANOTEC—Institute of Nanotechnology c/o Campus Ecotekne, University of Salento, Via Monteroni, 73100 Lecce, Italy
Fabrizio Mariano: CNR NANOTEC—Institute of Nanotechnology c/o Campus Ecotekne, University of Salento, Via Monteroni, 73100 Lecce, Italy
Antonio Maggiore: CNR NANOTEC—Institute of Nanotechnology c/o Campus Ecotekne, University of Salento, Via Monteroni, 73100 Lecce, Italy
Carmela Tania Prontera: CNR NANOTEC—Institute of Nanotechnology c/o Campus Ecotekne, University of Salento, Via Monteroni, 73100 Lecce, Italy
Sonia Carallo: CNR NANOTEC—Institute of Nanotechnology c/o Campus Ecotekne, University of Salento, Via Monteroni, 73100 Lecce, Italy
Cristian De Vito: CNR NANOTEC—Institute of Nanotechnology c/o Campus Ecotekne, University of Salento, Via Monteroni, 73100 Lecce, Italy
Luigi Carbone: CNR NANOTEC—Institute of Nanotechnology c/o Campus Ecotekne, University of Salento, Via Monteroni, 73100 Lecce, Italy
Vincenzo Maiorano: CNR NANOTEC—Institute of Nanotechnology c/o Campus Ecotekne, University of Salento, Via Monteroni, 73100 Lecce, Italy

DOI: https://doi.org/10.3390/textiles2030021
Journal volume & issue: Vol. 2, no. 3
pp. 382 – 394

Abstract

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With the main objective being to develop photochromic smart textiles, in this paper, we studied the photochromic behavior of WO3-x nanocrystals (NCs) cooperatively interacting with variable amounts of TiO2 NCs. We tested several blends of WO3-x:TiO2 NCs, admixed in different compositions (relative molar ratio of 4:0, 3:1, 2:2, 1:3, 0:4) and electrostatically interfacing because of opposite values of Z-potential, for photo-induced chromogenic textiles. We further monitored the photochromic sensitivity of NC-impregnated textiles after exposure to a few solvents (i.e., methanol, ethanol, and isopropanol) or when over-coated with different polymeric matrices such as natural cellulose or ionic conductive Nafion. The optimization of the compositions of the WO3-x:TiO2 blends embedded in polymeric matrices, allowed the nanostructured photochromic textiles to show rapid and tunable coloration (3-x:TiO2-based photochromic smart textiles.

Published in Textiles

ISSN: 2673-7248 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Chemical technology: Textile bleaching, dyeing, printing, etc.
Website: https://www.mdpi.com/journal/textiles

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