ISSN:
1662-8985
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Titania nanotubes were successfully synthesized by a simple procedure with needle-likeCaCO3 as inorganic templates at a room temperature in nonaqueous system. Through the hydrolysisof tetrabutoxytitanium (TBOT), titania crystal nucleus were deposited on the CaCO3 nanoparticlesdue to heterogeneous nucleation, followed by aggregation condensation on the surface ofneedle-like CaCO3 cores and removal of CaCO3 to produce hollow titania nanotubes. Itsmorphological and structural properties were characterized by TEM, SEM, and XRD, respectively.The nanotubes have a uniform tubular hollow structure with one or two big openings ends, thelength of about 2.0 μm, the average inner diameters of 100-200 nm, respectively, and a wallthickness of approximately 40 nm. The phase formed was anatase after calcinations at 723 K for 2 hand nanotubes with hollow structure remained their original shapes, and the BET surface area ofas-synthesized titania nanotubes was 243.45 m2/g, and decreased to 144.76 m2/g after calcinations
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/39/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.11-12.539.pdf
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