Loading...
Please wait, while we are loading the content...
Similar Documents
Improving the Photocatalytic Activity of Mesoporous Titania Films through the Formation of $WS_{2}/TiO_{2}$ Nano-Heterostructures
Content Provider | MDPI |
---|---|
Author | Ren, Junkai Stagi, Luigi Malfatti, Luca Paolucci, Valentina Cantalini, Carlo Garroni, Sebastiano Mureddu, Marzia Innocenzi, Plinio |
Copyright Year | 2022 |
Description | Heterostructures formed by anatase nanotitania and bidimensional semiconducting materials are expected to become the next-generation photocatalytic materials with an extended operating range and higher performances. The capability of fabricating optically transparent photocatalytic thin films is also a highly demanded technological issue, and increasing the performances of such devices would significantly impact several applications, from self-cleaning surfaces to photovoltaic systems. To improve the performances of such devices, $WS_{2}/TiO_{2}$ heterostructures obtained by incorporating two-dimensional transition metal dichalcogenides layers into titania mesoporous ordered thin films have been fabricated. The self-assembly process has been carefully controlled to avoid disruption of the order during film fabrication. $WS_{2}$ nanosheets of different sizes have been exfoliated by sonication and incorporated in the mesoporous films via one-pot processing. The $WS_{2}$ nanosheets result as well-dispersed within the titania anatase mesoporous film that retains a mesoporous ordered structure. An enhanced photocatalytic response due to an interparticle electron transfer effect has been observed. The structural characterization of the heterostructure has revealed a tight interplay between the matrix and nanosheets rather than a simple additive co-catalyst effect. |
Starting Page | 1074 |
e-ISSN | 20794991 |
DOI | 10.3390/nano12071074 |
Journal | Nanomaterials |
Issue Number | 7 |
Volume Number | 12 |
Language | English |
Publisher | MDPI |
Publisher Date | 2022-03-25 |
Access Restriction | Open |
Subject Keyword | Nanomaterials Manufacturing Engineering Tungsten Disulfide Titania Heterostructure Photocatalysis Mesoporous Films |
Content Type | Text |
Resource Type | Article |