Jump to main content
Jump to site search

Issue 7, 2014
Previous Article Next Article

Improved O2 evolution from a water splitting reaction over Er3+ and Y3+ co-doped tetragonal BiVO4

Author affiliations

Abstract

Erbium–yttrium co-doped BiVO4 with a tetragonal structure is synthesized by means of a surfactant free hydrothermal method. The studied photocatalyst shows good photoactivity under sun-like excitation for the degradation of methylene blue (MB) and for O2 evolution. From structural and morphological characterization, it has been stated that the presence of lanthanides induces the stabilization of the tetragonal phase. This is probably due to the substitutional occupation that occurs in the BiVO4 lattice. The photocatalytic performance under visible-NIR radiation clearly evidences the occurrence of an up-conversion process involved in the overall photo-electronic mechanism. The tetragonal phase Er0.0075,Y0.03–Bi0.9625VO4 system gives the highest O2 evolution rate (425 μmol g−1 h−1) under sun-like excitation, being 8 times higher than that attained for m-BiVO4 (53 μmol g−1 h−1).

Graphical abstract: Improved O2 evolution from a water splitting reaction over Er3+ and Y3+ co-doped tetragonal BiVO4

Back to tab navigation

Publication details

The article was received on 14 Jan 2014, accepted on 28 Feb 2014 and first published on 04 Mar 2014


Article type: Paper
DOI: 10.1039/C4CY00050A
Author version
available:
Download author version (PDF)
Citation: Catal. Sci. Technol., 2014,4, 2042-2050
  •   Request permissions

    Improved O2 evolution from a water splitting reaction over Er3+ and Y3+ co-doped tetragonal BiVO4

    S. Obregón and G. Colón, Catal. Sci. Technol., 2014, 4, 2042
    DOI: 10.1039/C4CY00050A

Search articles by author

Spotlight

Advertisements