Amino acid as a green and non-toxic capping agent was used to regulate TiO 2 crystal face exposure and morphology replaced common inorganic F − ions. In this paper, the hexagonal multi-walled tubular anatase TiO 2 with hierarchical structure exposed to {010} and {101} planes were synthesized by solvothermal method via optimizing the amino acid (glutamine). The microstructure, crystal plane exposure and photocatalytic activity of TiO 2 samples were tested comprehensively, and the formation mechanism of hexagonal multi-walled tubular anatase TiO...
