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14.02.2018 | Original Paper

TiO₂–SiO₂ Janus particles for photocatalytic self-cleaning of cotton fabric

verfasst von: Kamlesh Panwar, Manjeet Jassal, Ashwini K. Agrawal

Erschienen in: Cellulose | Ausgabe 4/2018

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Abstract

Titania nanoparticles (TiO₂ NPs), when applied directly on textile surfaces for self-cleaning applications, often result in poor wash durability and degradation of the substrate on exposure to UV light. Janus structures having nano-titania deposited on one half of silica (SiO₂) particles have been explored to address these issues. The Janus particles could be applied on cotton fabric at neutral pH and exhibited higher photocatalytic activity under neutral conditions unlike TiO₂ NPs, which required strongly acidic environment both during application and photocatalysis. The Janus particles attached durably to the fabric through their SiO₂ surface with TiO₂ layer facing upwards resulting in formation of a SiO₂ bridge between the active TiO₂ layer and the fabric surface. The improved properties were attributed to the characteristic morphology of Janus particles.

Vorheriger Artikel Tailoring flame-retardancy and strength of papers via layer-by-layer treatment of cellulose fibers

Nächster Artikel Enhanced wettability and moisture retention of cotton fabrics coated with self-suspended chitosan derivative

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Titel: TiO2–SiO2 Janus particles for photocatalytic self-cleaning of cotton fabric
verfasst von: Kamlesh Panwar
Manjeet Jassal
Ashwini K. Agrawal
Publikationsdatum: 14.02.2018
Verlag: Springer Netherlands
Erschienen in: Cellulose / Ausgabe 4/2018
Print ISSN: 0969-0239
Elektronische ISSN: 1572-882X
DOI: https://doi.org/10.1007/s10570-018-1698-2

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