Co²⁺ substituted for Bi³⁺ in BiVO₄ and its enhanced photocatalytic activity under visible LED light irradiation.

ABSTRACT: We investigated the fabrication of Co-doped BiVO₄ (Bi_1-x Co _x VO_4+δ , 0.05 < x < 0.5) by the substitution of Co ions for Bi sites in BiVO₄. The X-ray diffraction (XRD), Raman, and X-ray photoelectron spectroscopy (XPS) results indicated that the substitution of Co²⁺ ions for Bi³⁺ sites in BiVO₄ was successful, although a change in the crystal phase of BiVO₄ did not occur. UV-vis DRS and PL results suggested that the Co-incorporation could slightly improve the visible light absorption of BiVO₄ and induce the separation of photoinduced electron-hole pairs; therefore, a significant enhancement of photocatalytic performance was achieved. The Bi_0.8

SUBMITTER: Nguyen TD 

PROVIDER: S-EPMC9069272 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature