Tuneable Functionalization of Glass Fibre Membranes with ZnO/SnO<sub>2</sub> Heterostructures for Photocatalytic Water Treatment: Effect of SnO<sub>2</sub> Coverage Rate on the Photocatalytic Degradation of Organics
The construction of a ZnO/SnO<sub>2</sub> heterostructure is considered in the literature as an efficient strategy to improve photocatalytic properties of ZnO due to an electron/hole delocalisation process. This study is dedicated to an investigation of the photocatalytic performance of...
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doaj-5b7f87fbc57248eebe507048252fd2fa2020-11-25T02:59:50ZengMDPI AGCatalysts2073-43442020-07-011073373310.3390/catal10070733Tuneable Functionalization of Glass Fibre Membranes with ZnO/SnO<sub>2</sub> Heterostructures for Photocatalytic Water Treatment: Effect of SnO<sub>2</sub> Coverage Rate on the Photocatalytic Degradation of OrganicsVincent Rogé0Joffrey Didierjean1Jonathan Crêpellière2Didier Arl3Marc Michel4Ioana Fechete5Aziz Dinia6Damien Lenoble7Materials Research and Technology (MRT) Department, Luxembourg Institute of Science and Technology, 41 rue du Brill, L-4422 Belvaux, LuxembourgMaterials Research and Technology (MRT) Department, Luxembourg Institute of Science and Technology, 41 rue du Brill, L-4422 Belvaux, LuxembourgMaterials Research and Technology (MRT) Department, Luxembourg Institute of Science and Technology, 41 rue du Brill, L-4422 Belvaux, LuxembourgMaterials Research and Technology (MRT) Department, Luxembourg Institute of Science and Technology, 41 rue du Brill, L-4422 Belvaux, LuxembourgMaterials Research and Technology (MRT) Department, Luxembourg Institute of Science and Technology, 41 rue du Brill, L-4422 Belvaux, LuxembourgLASMIS, Département Physique, Mécanique, Matériaux et Nanotechnologie (P2MN), Université de Technologie de Troyes (UTT)-Antenne de Nogent, 26 rue Lavoisier, 52800 Nogent, FranceInstitut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), UMR 7504, 23 rue du Loess, CEDEX 2, 67034 Strasbourg, FranceMaterials Research and Technology (MRT) Department, Luxembourg Institute of Science and Technology, 41 rue du Brill, L-4422 Belvaux, LuxembourgThe construction of a ZnO/SnO<sub>2</sub> heterostructure is considered in the literature as an efficient strategy to improve photocatalytic properties of ZnO due to an electron/hole delocalisation process. This study is dedicated to an investigation of the photocatalytic performance of ZnO/SnO<sub>2</sub> heterostructures directly synthesized in macroporous glass fibres membranes. Hydrothermal ZnO nanorods have been functionalized with SnO<sub>2</sub> using an atomic layer deposition (ALD) process. The coverage rate of SnO<sub>2</sub> on ZnO nanorods was precisely tailored by controlling the number of ALD cycles. We highlight here the tight control of the photocatalytic properties of the ZnO/SnO<sub>2</sub> structure according to the coverage rate of SnO<sub>2</sub> on the ZnO nanorods. We show that the highest degradation of methylene blue is obtained when a 40% coverage rate of SnO<sub>2</sub> is reached. Interestingly, we also demonstrate that a higher coverage rate leads to a full passivation of the photocatalyst. In addition, we highlight that 40% coverage rate of SnO<sub>2</sub> onto ZnO is sufficient for getting a protective layer, leading to a more stable photocatalyst in reuse.https://www.mdpi.com/2073-4344/10/7/733photocatalysisZnOSnO<sub>2</sub>atomic layer deposition |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Vincent Rogé Joffrey Didierjean Jonathan Crêpellière Didier Arl Marc Michel Ioana Fechete Aziz Dinia Damien Lenoble |
spellingShingle |
Vincent Rogé Joffrey Didierjean Jonathan Crêpellière Didier Arl Marc Michel Ioana Fechete Aziz Dinia Damien Lenoble Tuneable Functionalization of Glass Fibre Membranes with ZnO/SnO<sub>2</sub> Heterostructures for Photocatalytic Water Treatment: Effect of SnO<sub>2</sub> Coverage Rate on the Photocatalytic Degradation of Organics Catalysts photocatalysis ZnO SnO<sub>2</sub> atomic layer deposition |
author_facet |
Vincent Rogé Joffrey Didierjean Jonathan Crêpellière Didier Arl Marc Michel Ioana Fechete Aziz Dinia Damien Lenoble |
author_sort |
Vincent Rogé |
title |
Tuneable Functionalization of Glass Fibre Membranes with ZnO/SnO<sub>2</sub> Heterostructures for Photocatalytic Water Treatment: Effect of SnO<sub>2</sub> Coverage Rate on the Photocatalytic Degradation of Organics |
title_short |
Tuneable Functionalization of Glass Fibre Membranes with ZnO/SnO<sub>2</sub> Heterostructures for Photocatalytic Water Treatment: Effect of SnO<sub>2</sub> Coverage Rate on the Photocatalytic Degradation of Organics |
title_full |
Tuneable Functionalization of Glass Fibre Membranes with ZnO/SnO<sub>2</sub> Heterostructures for Photocatalytic Water Treatment: Effect of SnO<sub>2</sub> Coverage Rate on the Photocatalytic Degradation of Organics |
title_fullStr |
Tuneable Functionalization of Glass Fibre Membranes with ZnO/SnO<sub>2</sub> Heterostructures for Photocatalytic Water Treatment: Effect of SnO<sub>2</sub> Coverage Rate on the Photocatalytic Degradation of Organics |
title_full_unstemmed |
Tuneable Functionalization of Glass Fibre Membranes with ZnO/SnO<sub>2</sub> Heterostructures for Photocatalytic Water Treatment: Effect of SnO<sub>2</sub> Coverage Rate on the Photocatalytic Degradation of Organics |
title_sort |
tuneable functionalization of glass fibre membranes with zno/sno<sub>2</sub> heterostructures for photocatalytic water treatment: effect of sno<sub>2</sub> coverage rate on the photocatalytic degradation of organics |
publisher |
MDPI AG |
series |
Catalysts |
issn |
2073-4344 |
publishDate |
2020-07-01 |
description |
The construction of a ZnO/SnO<sub>2</sub> heterostructure is considered in the literature as an efficient strategy to improve photocatalytic properties of ZnO due to an electron/hole delocalisation process. This study is dedicated to an investigation of the photocatalytic performance of ZnO/SnO<sub>2</sub> heterostructures directly synthesized in macroporous glass fibres membranes. Hydrothermal ZnO nanorods have been functionalized with SnO<sub>2</sub> using an atomic layer deposition (ALD) process. The coverage rate of SnO<sub>2</sub> on ZnO nanorods was precisely tailored by controlling the number of ALD cycles. We highlight here the tight control of the photocatalytic properties of the ZnO/SnO<sub>2</sub> structure according to the coverage rate of SnO<sub>2</sub> on the ZnO nanorods. We show that the highest degradation of methylene blue is obtained when a 40% coverage rate of SnO<sub>2</sub> is reached. Interestingly, we also demonstrate that a higher coverage rate leads to a full passivation of the photocatalyst. In addition, we highlight that 40% coverage rate of SnO<sub>2</sub> onto ZnO is sufficient for getting a protective layer, leading to a more stable photocatalyst in reuse. |
topic |
photocatalysis ZnO SnO<sub>2</sub> atomic layer deposition |
url |
https://www.mdpi.com/2073-4344/10/7/733 |
work_keys_str_mv |
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1724700798513840128 |