A facile and novel method for the synthesis of hollow, low-density titanium dioxide (TiO2) nanotubes (NT) and nanoflowers (NF) has been demonstrated using a hydrothermal sol-gel reaction in a pressure vessel. Titanium isopropoxide (TIPP), oxalic acid, and sodium hydroxide (NaOH) were selectively reacted to produce the desired TiO2morphologies. Bulk densities and porosities were measured using BET, confirming the hollow nature and the significantly reduced density of the NT. TEM analysis similarly supported the presence of the hollow NT.  XRD analysis confirmed the crystalline polymorphs of the TiO2 morphologies. UV/Vis spectra of the NF and NT products indicated interesting similarities and differences to commercially available porous titania products such as P25 and RCL-9.

Characterization of highly porous titanium dioxide nanotubes and nanoflowers prepared via novel oxalate methodology

248th National Meeting (2014)

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