Handy Protocol of Nitrogen-Doped BiVO<sub>4</sub> Photoanode for Visible Light-Driven Water Oxidation
Tatsuya Eo, Tomohiro Katsuki, Mohamed R. Berber, Zaki N. Zahran, Eman A. Mohamed, Yuta Tsubonouchi, Asma M. Alenad, N. Althubiti, Masayuki Yagi
Abstract
A rigidly adhered nitrogen-doped BiVO4 photoanode with a narrow band gap energy (Eg = 2.35 eV) for water oxidation was developed to attain the IPCE value of 35.1% at 440 nm which is among the highest reported values. This electrode provides a very stable photocurrent density of 3.3 mA cm–2 at 1.23 V vs RHE for a long term (at least 13.4 h) under visible light irradiation (100 mW cm–2).
Topics & Concepts
PhotocurrentDopingVisible spectrumNitrogenElectrodeBand gapMaterials scienceWater splittingIrradiationOptoelectronicsPhotochemistryChemistryPhotocatalysisCatalysisPhysical chemistryPhysicsBiochemistryOrganic chemistryNuclear physicsAdvanced Photocatalysis TechniquesGas Sensing Nanomaterials and SensorsCopper-based nanomaterials and applications