“…For their superior physical and chemical properties, more and more attention has been focused on controllable fabrication of ZnOHF with desired morphologies. Up to now, various structural and morphological forms of ZnOHF nano/micromaterials were synthesized, for example, nanotubes [3], flower-like particles [4,10], net-like microstructures [5], nanorods [8], rhombus [9], nanofibers [2,11], nanobelts [12]. From a photocatalytic point of view, catalysts with hierarchical architectures possess large surface area is expected to greatly increase the number of accessible active sites and ultimately enhance the catalytic efficiency.…”