A Fluoride-free Approach to Hierarchical Porous Anatase TiO2 Composed of Ultrathin Oriented Graphene-liked Reactive Nanosheets

Abstract

Hierarchical porous anatase TiO2 is synthesis by a universal solvothermal reaction, However, most synthesis methods are usually carried out in the presence of environmentally unfriendly fluorides. In this study, hierarchical porous anatase TiO2 composed of ultrathin oriented graphene-liked rich in (001) crystal facets were successfully synthesized under fluoride-free conditions. By adjusting the nitrogen doping content, the thickness of the nanosheets was controlled, and the crystals were characterized using X-ray diffraction, scanning electron and transmission electron microscopy, as well as electron spectroscopy.