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DC poleHodnotaJazyk
dc.contributor.authorHuang, Hongwei
dc.contributor.authorChen, Feixu
dc.contributor.authorAl-Jaary, Ali H. Reshak
dc.contributor.authorAuluck, Sushil
dc.contributor.authorZhang, Yihe
dc.date.accessioned2019-03-04T11:50:40Z-
dc.date.available2019-03-04T11:50:40Z-
dc.date.issued2018
dc.identifier.citationHUANG, H., CHEN, F., AL-JAARY, A. H. R., AULUCK, S., ZHANG, Y. Insight into crystal-structure dependent charge separation and photo-redox catalysis: A combined experimental and theretical study on Bi(IO3)3 and BiOIO3. Applied surface science, 2018, roč. 458, č. NOV 15 2018, s. 129-138. ISSN 0169-4332.en
dc.identifier.issn0169-4332
dc.identifier.uri2-s2.0-85049772835
dc.identifier.urihttp://hdl.handle.net/11025/31199
dc.format10 s.cs
dc.format.mimetypeapplication/pdf
dc.language.isoenen
dc.publisherElsevieren
dc.rightsPlný text není přístupný.cs
dc.rights© Elsevieren
dc.titleInsight into crystal-structure dependent charge separation and photo-redox catalysis: A combined experimental and theretical study on Bi(IO3)3 and BiOIO3en
dc.typečlánekcs
dc.typearticleen
dc.rights.accessclosedAccessen
dc.type.versionpublishedVersionen
dc.description.abstract-translatedSolar-driven conversion for CO2 reduction and oxygen activation reactions show huge potentials for energetic and environmental applications. However, the influence of crystal structure of a photocatalyst on its photocatalytic performance has been seldom investigated so far. Herein, to probe the relationship between crystal structure and photocatalytic properties, two bismuth iodates, the centrosymmetric (CS) monoclinic Bi(IO3)3 and noncentrosymmetric (NCS) orthorhombic BiOIO3 are employed as the models. The photocatalytic reduction and oxidation capabilities of Bi(IO3)3 and BiOIO3 were surveyed by monitoring the CO2 reduction and oxygen activation reactions. The results revealed that BiOIO3 shows far superior photocatalytic activity than Bi(IO3)3, which can more efficiently convert CO2 into CO and produce larger amounts of [rad]O2 − and [rad]OH. The experimental characterizations and DFT calculations councovered that much more efficient charge separation and migration occur in BiOIO3 in compared to Bi(IO3)3, which are responsible for the obviously higher photoactivity of BiOIO3. This is mainly due to that the NCS crystal structure of BiOIO3 that gives rise to a large macroscopic polarization, facilitating the separation of photogenerated electron-hole pairs. The microscopic first hyperpolarizability for BiOIO3 was calculated to be 2.56 × 10−30 esu for the dominant component at the static limit and 15.73 × 10−30 esu at the wavelength 409.1 nm, which well verifies the strong polarization of BiOIO3. This study may furnish the perspective into designing high-performance photocatalytic materials on the basis of crystal structure engineeringen
dc.subject.translatedBiOIO3en
dc.subject.translatedBi(IO3)(3)en
dc.subject.translatedNoncentrosymmetric crystal structureen
dc.subject.translatedCharge separationen
dc.subject.translatedPhotocatalysisen
dc.identifier.doi10.1016/j.apsusc.2018.07.054
dc.type.statusPeer-revieweden
dc.identifier.document-number441400000016
dc.identifier.obd43925207
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