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Steel slag source-derived FeOOH for enhanced BiVO4 photoelectrochemical water splitting
Pengliang Chen1, Shiming Zhong2, Xingxing Cheng2
1National Engineering Lab for Coal-fired Pollutant Emission Reduction, School of Energy and Power Engineering, Shandong University, Jinan 250061, China; Shandong Xinguang Energy Saving Technology Co, 300 Changjiang Road, Yantai, Shandong Province, China.
Abstract:
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.
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