New application for the BiVO4 photoanode: A photoelectroanalytical sensor for nitrite
Abstract: A simple and sensitive photoelectrochemical sensor based on the bismuth vanadate (BiVO4) photoanode coupled to visible light excitation was developed for nitrite detection. The BiVO4 was prepared by hydrothermal methods and used as photoelectroactive sensor. Photoexcitation with visible light allows nitrite anions to act as highly efficient hole scavenger at low potential. The photocurrent response increases linearly with nitrite concentration in the solution. The proposed device operates in the range of detection (2.5 to 100.0 μmol L–1), with limit of detection (1.5 μmol L–1), and with good reproducibility (4.1%) for nitrite analysis.
Author(s): Paulino Ribeiro, Francisco Wirley; Moraes, Fernando Cruz; Pereira, Ernesto Chaves; et al.
Electrochemistry Communications
Volume: 61 Pages: 1-4 Published: 20150200
DOI: https://doi.org/10.1016/j.elecom.2015.09.022
PDF: New application for the BiVO4 photoanode – A photoelectroanalytical sensor for nitrite
