Change search
ReferencesLink to record
Permanent link

Direct link
Optical and electronic properties of nanosized BiTaO4 and BiNbO4 photocatalysts: Experiment and theory
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Multiscale Materials Modelling.
Show others and affiliations
2014 (English)In: Physica status solidi. B, Basic research, ISSN 0370-1972, E-ISSN 1521-3951, Vol. 251, no 5, 1034-1039 p.Article in journal (Refereed) Published
Abstract [en]

Nanosized BiTaO4 and BiNbO4 were prepared by the citrate method. The electronic and optical properties of BiTaO4 and BiNbO4 have been investigated by means of photo-acoustic spectroscopy (PAS), X-ray photo-electron spectroscopy (XPS), and first-principles calculations based on density functional theory. The measured valence band (from XPS) of both materials agreed well with the theoretical findings. It was also found that the calculated optical properties such as dynamical dielectric function and optical absorption spectra are in good agreement with the experimental findings. According to the absorption spectra, the absorption edges of BiNbO4 and BiTaO4 are located at 370 and 330nm, respectively. Both phases have the ability to harvest UV light and relatively high surface area to volume ratio and can be used as UV/visible light-driven photocatalysts.

Place, publisher, year, edition, pages
2014. Vol. 251, no 5, 1034-1039 p.
Keyword [en]
electronic structure, niobates, optical absorption, photocatalysis, tantalates, water splitting
National Category
Other Physics Topics
URN: urn:nbn:se:kth:diva-147056DOI: 10.1002/pssb.201350265ISI: 000335983000017ScopusID: 2-s2.0-84899965238OAI: diva2:728306
Swedish Research CouncilFormas

QC 20140624

Available from: 2014-06-24 Created: 2014-06-23 Last updated: 2014-06-24Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Wang, BaochangAhuja, Rajeev
By organisation
Multiscale Materials ModellingApplied Material Physics
In the same journal
Physica status solidi. B, Basic research
Other Physics Topics

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 33 hits
ReferencesLink to record
Permanent link

Direct link