Hydrogen treatment and FeOOH overlayer: Effective approaches for enhancing the photoelectrochemical water oxidation performance of bismuth vanadate thin films

Steel slag source-derived FeOOH for enhanced BiVO4 photoelectrochemical water splitting

Green, healthy, and sustainable energy development has always been the cornerstone of global energy development. In this study, industrial waste steel slag was utilized as the raw material, and FeOOH was loaded onto a BiVO4 surface using the impregnation method. The optimized photoanode exhibited a lower onset potential and higher surface activity, achieving a current density of 3.08 mA/cm2 at 1.23 V vs. RHE, and dramatically enhancing the oxygen and hydrogen production efficiencies of the entire system. The incorporation of FeOOH from a steel slag source improves the photoelectrochemical (PEC) water splitting capacity and broadens the steel slag utilization pathways for more economical and green energy use. This study combines the high value-added utilization of solid waste with the field of PEC, presenting a novel approach.

Promoting effects of Y doping and FeOOH loading for efficient photoelectrochemical activity on BiVO4 electrodes

An FeOOH/Y-BiVO4 photoelectrode with high PEC performance was obtained using a combination of Y-doping and modification with FeOOH. The FeOOH/Y-BiVO4 photoelectrode exhibited efficient PEC activity for solar water oxidation and wastewater treatment.

Ni-modified β-FeOOH nanorod cocatalysts for oxygen evolution utilising photoexcited holes on N2p level in N-doped TiO2 electrode

Traditionally, N-doped TiO2 (N-TiO2) has been regarded as unsuitable for oxygen evolution reaction (OER) under visible light. Ni-modified β-FeOOH nanorod cocatalysts enabled to use N2p holes in N-TiO2 photoanode induced...