Crystal structures and photocatalysis of the triclinic polymorphs of BiNbO4 and BiTaO4
| hal.structure.identifier | Solid State and Structural Chemistry Unit | |
| dc.contributor.author | MUKTHA, B. | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | DARRIET, Jacques | |
| hal.structure.identifier | Department of Chemical Engineering | |
| dc.contributor.author | MADRAS, Giridhar | |
| hal.structure.identifier | Solid State and Structural Chemistry Unit | |
| dc.contributor.author | GURU ROW, T. N. | |
| dc.date.issued | 2006 | |
| dc.identifier.issn | 0022-4596 | |
| dc.description.abstractEn | The high-temperature polymorphs of two photocatalytic materials, BiNbO4 and BiTaO4 were synthesized by the ceramic method. The crystal structures of these materials were determined by single-crystal X-ray diffraction. BiNbO4 and BiTaO4 crystallize into the triclinic system P1¯ (No. 2), with a=5.5376(4) Å, b=7.6184(3) Å, c=7.9324(36) Å, α=102.565(3)°, β=90.143(2)°, γ=92.788 (4)°, V=326.21 (5) Å3, Z=4 and a=5.931 (1) Å, b=7.672 (2) Å, c=7.786 (2) Å, α=102.94 (3)°, β=90.04 (3)° γ=93.53 (3)°, V=344.59 (1) Å3 and Z=4, respectively. The structures along the c-axis, consist of layers of [Bi2O2] units separated by puckered sheets of (Nb/Ta)O6 octahedra. Photocatalytic studies on the degradation of dyes indicate selectivity of BiNbO4 towards aromatics containing quinonic and azo functional groups. | |
| dc.language.iso | en | |
| dc.publisher | Elsevier | |
| dc.subject.en | Single-crystal X-ray diffraction | |
| dc.subject.en | Crystal structure | |
| dc.subject.en | Bismuth niobate | |
| dc.subject.en | Bismuth tantalate | |
| dc.subject.en | Photocatalysis | |
| dc.title.en | Crystal structures and photocatalysis of the triclinic polymorphs of BiNbO4 and BiTaO4 | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1016/j.jssc.2006.08.032 | |
| dc.subject.hal | Chimie/Matériaux | |
| bordeaux.journal | Journal of Solid State Chemistry | |
| bordeaux.page | 3919-3925 | |
| bordeaux.volume | 179 | |
| bordeaux.issue | 12 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-00123251 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-00123251v1 | |
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