High-density and highly cross-coated anatase TiO2 nanotubes networks have been successfully prepared on the surface of Ti foil by alkaline hydrothermal using NaOH and Ti foil as the precursors. The nanotubes networks were analyzed using X-ray diffraction (XRD). energy dispersive X-ray spectrometer (EDX). transmission electron microscope (TEM). https://www.bempresas.com/