BiVO₄/TiO₂(N₂) Nanotubes Heterojunction Photoanode for Highly Efficient Photoelectrocatalytic Applications.

ABSTRACT:

Abstract

We report the development of a novel visible response BiVO₄/TiO₂(N₂) nanotubes photoanode for photoelectrocatalytic applications. The nitrogen-treated TiO₂ nanotube shows a high carrier concentration rate, thus resulting in a high efficient charge transportation and low electron-hole recombination in the TiO₂-BiVO₄. Therefore, the BiVO₄/TiO₂(N₂) NTs photoanode enabled with a significantly enhanced photocurrent of 2.73 mA cm^-2 (at 1 V vs. Ag/AgCl) and a degradation efficiency in the oxidation of dyes under visible light. Field emission scanning electron microscopy, X-ray diffractometry, energy-dispersive X-ray spectrometer, and UV-Vis absorption spectrum were conducted to characterize the photoanode and demonstrated the presence of both metal oxides as a junction composite.

Graphical abstract

Visible-light response BiVO₄/TiO₂(N₂) naontubes photoelectrode was fabricated for photoelectrochemical water splitting and organic degradation in this paper.

SUBMITTER: Wang R 

PROVIDER: S-EPMC6223793 | biostudies-literature |

REPOSITORIES: biostudies-literature