METHOD FOR MANUFACTURING TITANATE NANOTUBE

A method for manufacturing titanate nanotubes is provided to reduce an inside diameter and an external diameter of the nanotubes to 5 nm or smaller and 10 nm or smaller, respectively, and to produce the titanate nanotubes having a length of several hundred nm. A method for manufacturing titanate nan...

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Hauptverfasser:	KIM, DONG HYUN, LEE, KYUNG SUB, OH, HYO JIN, KIM, SUN JAE, MOHAMAD QAMAR, YUN, YEONG UNG, LEE, NAM HEE, KIM, MIN HWA, YOON, CHO RONG
Format:	Patent
Sprache:	eng
Schlagworte:	MANUFACTURE OR TREATMENT THEREOF NANOSTRUCTURES FORMED BY MANIPULATION OF INDIVIDUAL ATOMS,MOLECULES, OR LIMITED COLLECTIONS OF ATOMS OR MOLECULES ASDISCRETE UNITS NANOTECHNOLOGY PERFORMING OPERATIONS TRANSPORTING
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Beschreibung
Zusammenfassung:	A method for manufacturing titanate nanotubes is provided to reduce an inside diameter and an external diameter of the nanotubes to 5 nm or smaller and 10 nm or smaller, respectively, and to produce the titanate nanotubes having a length of several hundred nm. A method for manufacturing titanate nanotubes includes the steps of: adding a titanium dioxide sol to a strong alkaline aqueous solution; heating the strong alkaline aqueous solution at predetermined temperature for a predetermined time to synthesize hydrothermally a dispersion containing titanate nanotubes; and adding hydrochloric acid to the strong alkaline aqueous solution to adjust pH of the aqueous solution, and washing the pH-adjusted aqueous solution with water. Further, the strong alkaline aqueous solution is NaOH or KOH water solution and has a concentration of 7.5 to 20 M.