Abstract
Titanate Nanotubes (TNT) were synthesized by aging commercial titanium dioxide (TiO2 - Degussa P25) with an alkali (KOH) solution at different time intervals. The prepared materials were investigated for their surface composition and textural behaviour by X-ray powder diffraction (XRD), Raman spectroscopy, Gas (N2 and CO2) adsorption measurements, and Transmission electron microscopy (TEM). The X-ray diffraction spectra revealed the decrease in the crystalline nature of the materials decreased by exposing them for a longer duration in the base solution. Raman spectra results showed that ageing time affected the structural properties. The specific surface area and the pore size of the newly synthesised materials were affected by the ageing process. The TEM images showed the influence of ageing during the formation of titanate nanotubes. HRTEM revealed that Pd particle sizes of <1 nm was present inside the tubes.
Highlights
The structural composition and morphology of various carbon nanotubes and nanofibers have been reported
In our investigation titanate nanotubes were synthesized by using a base (KOH) solution and exposing them at two different time intervals
X-ray diffraction (XRD) profiles of all the materials were studied using recorded on a Phillips PW1830 Diffractometer
Summary
The structural composition and morphology of various carbon nanotubes and nanofibers have been reported. Sol-gel approach is employed to prepare titanate nanotubes used to synthesize TiO2 based nanotubes using various organic and inorganic templates [5,6]. These preparatory routes are and provide more pure and homogeneous products [7,8,9]. The aim of the study was to synthesise the tubular form of titanium dioxide through a simple methodology and to understand their structural composition and surface morphology from the catalyst support point of view using different characterisation techniques techniques
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