Fabrication of Bi2 WO6 photoelectrodes with enhanced photoelectrochemical and photocatalytic performance
dc.contributor.author | Alfaifi, BY | |
dc.contributor.author | Tahir, AA | |
dc.contributor.author | Wijayantha, KGU | |
dc.date.accessioned | 2019-03-19T10:55:20Z | |
dc.date.issued | 2019-03-14 | |
dc.description.abstract | Visible light active semiconductor Bi 2 WO 6 photoelectrodes with desired physical and chemical properties are sought for solar energy conversion and photocatalytic applications. The porous nanostructured Bi 2 WO 6 photoelectrodes are prepared by Spray Pyrolysis (SP). A detail study has been conducted to correlate the annealing temperature, morphology and crystallographic orientation with the photoelectrochemical (PEC), electrochemical and photocatalytic properties. The photoelectrodes possess an optical bandgap of 2.82 eV and exhibit anodic photocurrent. The current-voltage characterization of Bi 2 WO 6 photoelectrodes reveals that the photocurrent density and photocurrent onset potential is strongly dependent on the deposition parameters. The PEC study shows that the photoelectrode annealed at 525 °C has photocurrent density of 42 μAcm −2 at 0.23 V (vs Ag/AgCl/3M KCl) under AM1.5 illumination and exhibit superior photocatalytic activity for Rhodamine B (RhB) degradation. The electrochemical study shows that the photoelectrode has flatband potential of 2.85 V which is in good agreement with photocurrent onset potential. This finding will have a significant influence on further exploitation of Bi 2 WO 6 as a potential semiconductor material in solar energy conversion and photocatalytic applications. | en_GB |
dc.description.sponsorship | The Saudi Arabian Cultural Bureau | en_GB |
dc.description.sponsorship | Engineering and Physical Sciences Research Council (EPSRC) | en_GB |
dc.identifier.citation | Vol. 195, pp. 134 - 141 | en_GB |
dc.identifier.doi | 10.1016/j.solmat.2019.02.031 | |
dc.identifier.grantnumber | EP/P510956/1 | en_GB |
dc.identifier.grantnumber | EP/R512801/1 | en_GB |
dc.identifier.grantnumber | UKIERI-DST2016-17-0089 | en_GB |
dc.identifier.uri | http://hdl.handle.net/10871/36568 | |
dc.language.iso | en | en_GB |
dc.publisher | Elsevier | en_GB |
dc.rights | © 2019 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/BY/4.0/). | en_GB |
dc.subject | Bi2WO6 | en_GB |
dc.subject | Nanostructures | en_GB |
dc.subject | Nanoplate | en_GB |
dc.subject | Thin films | en_GB |
dc.subject | Photoelectrochemical | en_GB |
dc.subject | Photocatalyst | en_GB |
dc.title | Fabrication of Bi2 WO6 photoelectrodes with enhanced photoelectrochemical and photocatalytic performance | en_GB |
dc.type | Article | en_GB |
dc.date.available | 2019-03-19T10:55:20Z | |
dc.identifier.issn | 0927-0248 | |
dc.description | This is the final version. Available from Elsevier via the DOI in this record. | en_GB |
dc.identifier.journal | Solar Energy Materials and Solar Cells | en_GB |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | en_GB |
dcterms.dateAccepted | 2019-02-27 | |
rioxxterms.version | VoR | en_GB |
rioxxterms.licenseref.startdate | 2019-02-27 | |
rioxxterms.type | Journal Article/Review | en_GB |
refterms.dateFCD | 2019-03-19T10:50:32Z | |
refterms.versionFCD | VoR | |
refterms.dateFOA | 2019-03-19T10:55:24Z | |
refterms.panel | B | en_GB |
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Except where otherwise noted, this item's licence is described as © 2019 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/BY/4.0/).