Synthesis and characterization of TiO2-derived nanotubes via a hydrothermal method

In this paper, nanotubes were synthesized directly using a cheap precursor via a simple hydrothermal process without using any sacrificial templates. The synthesized materials were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microcopy (TEM), energy- dispersive X-ray spectroscopy (EDX), and accelerated surface area and porosimetry (ASAP). Transmission electron microscope observations showed that nanotubes were formed with an inner diameter of 2-3.5 nm, an outer diameter of 8-10 nm, and an open ended shape. The nanotubes showed a IV-type isotherm with a H3 type hysteresis loop according to the BDDT (Brunauer, Deming, Deming, and Teller) classification, indicating the presence of mesopores. Significant increases of specific surface area (277.82 m2/g) and pore volume (1.08 cm3/g) have potential applications such as in catalysts, as sensors, high efficient solar cells, for hydrogen storage, as absorbents, etc.

کلیدواژه ها:

Nanostructure ، Hydrothermal ، Morphology ، Titanate ، Nanotubes