Former reports on various types of titanates suggest that a layered crystal framework is an important prerequisite for nanotube formation41. In a different way, the development of doped lepidocrocite-form titanate nanotubes here is a consequence of the interfering ions (Fe3+) that Participate in a critical function in TiO6 octahedral modification. https://handmadediceset13579.bloggactif.com/22456381/dice-or-die-fundamentals-explained