Jump to main content
Jump to site search

Issue 9, 2016
Previous Article Next Article

Structural transformation of Bi1−x/3V1−xMoxO4 solid solutions for light-driven water oxidation

Author affiliations

Abstract

The influence of molybdenum content in the solid solutions of Bi1−x/3V1−xMoxO4 (x = 0.05–0.20) on the morphology, band gap, structure and light-driven water oxidation properties has been studied by scanning electron microscopy, X-ray powder diffraction and vibrational spectroscopy (Raman and infrared). To find out the peculiarities of structural changes for bismuth scheelite-related oxides containing both vanadium and molybdenum crystals of Bi0.98V0.93Mo0.07O4 have been grown from a K–Bi–V–Mo–O high-temperature melt and characterized by single crystal X-ray diffraction. For the scheelite-related framework both V and Mo were found to occupy the same positions lowering the point group symmetry of tetrahedra from 4/m to 2/m giving monoclinic distortion for solid solutions with x = 0.05–0.10. The most promising photocatalytic performance was obtained for Bi0.96Mo0.10V0.90O4, in which the oxygen evolution could reach 21 μM in 50 s under visible light of LEDs, λ = 470 ± 10 nm, and 820 μE cm−2 s−1. The changes in catalytic properties are shown to be governed by a crystal structure strain with a maximum obtained for the boundary sample between the monoclinic and tetragonal phase.

Graphical abstract: Structural transformation of Bi1−x/3V1−xMoxO4 solid solutions for light-driven water oxidation

Back to tab navigation

Supplementary files

Publication details

The article was received on 10 Dec 2015, accepted on 21 Jan 2016 and first published on 21 Jan 2016


Article type: Paper
DOI: 10.1039/C5DT04829J
Author version
available:
Download author version (PDF)
Dalton Trans., 2016,45, 3895-3904

  •   Request permissions

    Structural transformation of Bi1−x/3V1−xMoxO4 solid solutions for light-driven water oxidation

    K. V. Terebilenko, K. L. Bychkov, V. N. Baumer, N. S. Slobodyanik, M. V. Pavliuk, A. Thapper, I. I. Tokmenko, I. M. Nasieka and V. V. Strelchuk, Dalton Trans., 2016, 45, 3895
    DOI: 10.1039/C5DT04829J

Search articles by author

Spotlight

Advertisements