TiO 2 /Ag 2 O immobilized on cellulose paper: A new floating system for enhanced photocatalytic and antibacterial activities.

Autor: Sboui M; Faculty of Sciences, University of Sfax, Laboratoire de Chimie Inorganique (LCI), Sfax BP1171-3018, Tunisia. Electronic address: sboui.mouheb@gmail.com., Lachheb H; URCMEP (UR11ES85), Faculty of Sciences, University of Gabès, 6029, Gabès, Tunisia., Bouattour S; Faculty of Sciences, University of Sfax, Laboratoire de Chimie Inorganique (LCI), Sfax BP1171-3018, Tunisia., Gruttadauria M; Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, Viale delle Scienze, Ed. 17, 90128, Palermo, Italy., La Parola V; Istituto per lo Studio dei Materiali Nanostrutturati (ISMN-CNR), Via Ugo La Malfa 153, 90146, Palermo, Italy., Liotta LF; Istituto per lo Studio dei Materiali Nanostrutturati (ISMN-CNR), Via Ugo La Malfa 153, 90146, Palermo, Italy. Electronic address: leonardafrancesca.liotta@cnr.it., Boufi S; Faculty of Sciences, University of Sfax, Laboratoire Sciences des Matériaux et Environnement (LSME), Sfax BP1171-3018, Tunisia. Electronic address: sami.boufi@fss.rnu.tn.
Jazyk: angličtina
Zdroj: Environmental research [Environ Res] 2021 Jul; Vol. 198, pp. 111257. Date of Electronic Publication: 2021 May 08.
DOI: 10.1016/j.envres.2021.111257
Abstrakt: Paper-TiO 2 -Ag 2 O floating photocatalysts were produced under mild condition and their photocatalytic activity for the degradation of aromatic amine under sunlight stimulant was investigated. Characterizations by Raman, XRD, XPS, DRS and PL confirmed the presence of TiO 2 and Ag 2 O, and the morphology of the appended TiO 2 /Ag 2 O layer was probed by FE-SEM. The photocatalytic activity of the prepared samples was investigated by the degradation of aniline (AN) in water under simulated sun-light illumination and constrained conditions, i.e. non-stirring and non-oxygenation. The presence of Ag 2 O combined with TiO 2 was shown to improve the resistance of paper to bacteria attack, thus increasing the durability of the photocatalyst. Thanks to its hydrophobic character, the paper-TiO 2 -Ag 2 O NPs can be employed as useful floating photocatalyst and can be reused in continuous cycles.
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Databáze: MEDLINE
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