Morphology Controllable Fabrication of Tungsten Oxide for Enhanced Photocatalytic Performance

Exploring the morphology-property relationship is an important role in addressing the mechanism of hydrogen production. In this work, WO 3 photocatalysts with different morphology were prepared via a solvothermal method. Our first prepared porous WO 3 with the exposed (100) crystal plane, the WO 3 porous nano disk demonstrates a better photocatalytic activity, which is higher than the WO 3 nanorod, WO 3 nanoflower and WO 3 nano block. Further characterizations indicate the WO 3 porous nano disk exhibits high absorption capacity and active lattice structure. Meanwhile, with the introduction of non-noble metal Ni as the co-catalyst, the photocatalytic H 2 evolution was enhanced. This work reveals the importance of regulating surface atomic configuration and catalytic active sites, opens a new avenue for the development of solar-driven water splitting.