Photocatalytic activity of 2D nanosheets of ferroelectric Dion-Jacobson compounds
dc.contributor.author | Xiong, W | |
dc.contributor.author | Porwal, H | |
dc.contributor.author | Luo, H | |
dc.contributor.author | Araullo-Peters, V | |
dc.contributor.author | Feng, J | |
dc.contributor.author | Titirici, MM | |
dc.contributor.author | Reece, MJ | |
dc.contributor.author | Briscoe, J | |
dc.date.accessioned | 2020-05-15T12:39:23Z | |
dc.date.available | 2020-05-15T12:39:23Z | |
dc.date.issued | 2020-04-14 | |
dc.identifier.citation | Xiong, Wei et al. "Photocatalytic Activity Of 2D Nanosheets Of Ferroelectric Dion–Jacobson Compounds". Journal Of Materials Chemistry A, vol 8, no. 14, 2020, pp. 6564-6568. Royal Society Of Chemistry (RSC), doi:10.1039/c9ta11639g. Accessed 15 May 2020. | en_US |
dc.identifier.issn | 2050-7488 | |
dc.identifier.uri | https://qmro.qmul.ac.uk/xmlui/handle/123456789/64116 | |
dc.description.abstract | Dion-Jacobson compounds have a layered perovskite structure, and a small number of them have been identified as being ferroelectric. Here, RbBiNb2O7 powders are made by conventional solid-state synthesis. The relatively large Rb ion produces an interlayer within the structure with a large spacing and weak bonding. This work shows for the first time that a polar layered perovskite can be exfoliated into 2D nanosheets using a facile and scalable method, namely liquid-phase sonication. With both 2D materials and ferroelectrics being of interest for photocatalysis, the photocatalytic performance of RbBiNb2O7 nanosheets is characterized by measuring its dye degradation rate under a solar simulator. It is demonstrated that the RbBiNb2O7 nanosheet material effectively decolourizes Rhodamine B under visible illumination even though it has a wide bandgap (3.45 eV), and that its photocatalytic activity is greatly enhanced (∼4 times faster) when decorated with photodeposited Ag nanoparticles. Reducing the nanosheet size also increases the photocatalytic performance. This work demonstrates that polar 2D Dion-Jacobson phase RbBiNb2O7 is a promising candidate for photocatalytic applications. Further improvements are possible by identifying compounds with a narrower bandgap as a broad compositional window is available in this family of compounds. | en_US |
dc.format.extent | 6564 - 6568 | |
dc.publisher | Royal Society of Chemistry | en_US |
dc.relation.ispartof | Journal of Materials Chemistry A | |
dc.rights | This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. | |
dc.rights | Attribution 3.0 United States | * |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/us/ | * |
dc.title | Photocatalytic activity of 2D nanosheets of ferroelectric Dion-Jacobson compounds | en_US |
dc.type | Article | en_US |
dc.rights.holder | © The Author(s) 2020 | |
dc.identifier.doi | 10.1039/c9ta11639g | |
pubs.issue | 14 | en_US |
pubs.notes | Not known | en_US |
pubs.publication-status | Published | en_US |
pubs.volume | 8 | en_US |
rioxxterms.funder | Default funder | en_US |
rioxxterms.identifier.project | Default project | en_US |
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