BaZrO 3 hollow nanostructure with Fe (III) doping for photocatalytic hydrogen evolution under visible light

Abstract Visible-light-responded BaZrO 3 hollow nanostructure with Fe (III) doping was prepared through facile solvothermal reaction using ethanediamine (EDA) as solvent. Fe doping in BaZrO 3 as an efficient way of reducing its wide band gap (∼4.96 eV) is realized in order to achieve visible light response. The corresponding trapping center introduced by Fe 3+ doping contributes to the lower recombination of photo-induced holes and electrons. Meanwhile, the special hollow structure with larger specific area is also a key factor to increase optical absorption, charge carrier migration rate and redox reaction sites. Hence, the participation of Fe and hollow nanostructure are responsible for the visible-light-driven photocatalytic hydrogen evolution.