State-of-the-art Sn2+-based ternary oxides as photocatalysts for water splitting: electronic structures and optoelectronic properties

Handle URI:
http://hdl.handle.net/10754/622469
Title:
State-of-the-art Sn2+-based ternary oxides as photocatalysts for water splitting: electronic structures and optoelectronic properties
Authors:
Noureldine, Dalal ( 0000-0002-8230-9903 ) ; Takanabe, Kazuhiro ( 0000-0001-5374-9451 )
Abstract:
Developing visible light responsive metal oxide photocatalysts is a challenge that must be conquered to achieve high efficiency for water splitting or hydrogen evolution reactions. Valence band engineering is possible by forming ternary oxides using the combination of a metal cation with an s2d10 electronic configuration and a transition metal oxide with a d0 configuration. Many (Sn2+, Bi3+, Pb2+)-based ternary metal oxide photocatalysts have been reported for hydrogen and/or oxygen evolution under visible irradiation. Sn2+-based materials have attracted particular attention because tin is inexpensive, abundant and more environmentally friendly than lead or bismuth. In this review, we provide a fruitful library for Sn2+-based photocatalysts that have been reported to evolve hydrogen using sacrificial reagents, including SnNb2O6, Sn2Nb2O7, SnTaxNb2−xO6, SnTa2O6, Sn2Ta2O7, SnWO4 (α and β phases), SnSb2O6·nH2O, and Sn2TiO4. The synthesis method used in the literature and the resultant morphology and crystal structure of each compound are discussed. The density functional theory (DFT) calculations of the electronic structure and density of states are provided, and the consequent optoelectronic properties such as band gap, nature of the bandgap, dielectric constant, and effective masses are summarized. This review will help highlight the main challenges for Sn2+-based materials.
KAUST Department:
KAUST Catalysis Center (KCC); Physical Sciences and Engineering (PSE) Division
Citation:
Noureldine D, Takanabe K (2016) State-of-the-art Sn2+-based ternary oxides as photocatalysts for water splitting: electronic structures and optoelectronic properties. Catal Sci Technol 6: 7656–7670. Available: http://dx.doi.org/10.1039/c6cy01666a.
Publisher:
Royal Society of Chemistry (RSC)
Journal:
Catal. Sci. Technol.
Issue Date:
19-Sep-2016
DOI:
10.1039/c6cy01666a
Type:
Article
ISSN:
2044-4753; 2044-4761
Sponsors:
The research reported in this work was supported by the King Abdullah University of Science and Technology (KAUST).
Additional Links:
http://pubs.rsc.org/en/Content/ArticleLanding/2016/CY/C6CY01666A
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; KAUST Catalysis Center (KCC)

Full metadata record

DC FieldValue Language
dc.contributor.authorNoureldine, Dalalen
dc.contributor.authorTakanabe, Kazuhiroen
dc.date.accessioned2017-01-02T09:28:33Z-
dc.date.available2017-01-02T09:28:33Z-
dc.date.issued2016-09-19en
dc.identifier.citationNoureldine D, Takanabe K (2016) State-of-the-art Sn2+-based ternary oxides as photocatalysts for water splitting: electronic structures and optoelectronic properties. Catal Sci Technol 6: 7656–7670. Available: http://dx.doi.org/10.1039/c6cy01666a.en
dc.identifier.issn2044-4753en
dc.identifier.issn2044-4761en
dc.identifier.doi10.1039/c6cy01666aen
dc.identifier.urihttp://hdl.handle.net/10754/622469-
dc.description.abstractDeveloping visible light responsive metal oxide photocatalysts is a challenge that must be conquered to achieve high efficiency for water splitting or hydrogen evolution reactions. Valence band engineering is possible by forming ternary oxides using the combination of a metal cation with an s2d10 electronic configuration and a transition metal oxide with a d0 configuration. Many (Sn2+, Bi3+, Pb2+)-based ternary metal oxide photocatalysts have been reported for hydrogen and/or oxygen evolution under visible irradiation. Sn2+-based materials have attracted particular attention because tin is inexpensive, abundant and more environmentally friendly than lead or bismuth. In this review, we provide a fruitful library for Sn2+-based photocatalysts that have been reported to evolve hydrogen using sacrificial reagents, including SnNb2O6, Sn2Nb2O7, SnTaxNb2−xO6, SnTa2O6, Sn2Ta2O7, SnWO4 (α and β phases), SnSb2O6·nH2O, and Sn2TiO4. The synthesis method used in the literature and the resultant morphology and crystal structure of each compound are discussed. The density functional theory (DFT) calculations of the electronic structure and density of states are provided, and the consequent optoelectronic properties such as band gap, nature of the bandgap, dielectric constant, and effective masses are summarized. This review will help highlight the main challenges for Sn2+-based materials.en
dc.description.sponsorshipThe research reported in this work was supported by the King Abdullah University of Science and Technology (KAUST).en
dc.publisherRoyal Society of Chemistry (RSC)en
dc.relation.urlhttp://pubs.rsc.org/en/Content/ArticleLanding/2016/CY/C6CY01666Aen
dc.titleState-of-the-art Sn2+-based ternary oxides as photocatalysts for water splitting: electronic structures and optoelectronic propertiesen
dc.typeArticleen
dc.contributor.departmentKAUST Catalysis Center (KCC)en
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalCatal. Sci. Technol.en
kaust.authorNoureldine, Dalalen
kaust.authorTakanabe, Kazuhiroen
All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.