Effect of hydrothermal temperature on photocatalytic properties of TiO 2 nanotubes

Dong Su Lee; Seul Yi Lee; Kyong Yop Rhee; Soo Jin Park

doi:10.1016/j.cap.2013.12.018

Effect of hydrothermal temperature on photocatalytic properties of TiO ₂ nanotubes

Dong Su Lee, Seul Yi Lee, Kyong Yop Rhee, Soo Jin Park

Research output: Contribution to journal › Article › peer-review

37 Scopus citations

Abstract

This work presents a study on the effect of hydrothermal temperature and structure on the photocatalytic activity of TiO₂ nanotubes (TNT) prepared using commercially available TiO₂ nanoparticles (P25). From the results, it was found that a higher hydrothermal temperature led to an increase in the specific surface area, total pore volume, and the size of mesopores in TNT. Moreover, the TNTs synthesized by the hydrothermal method had a new structure, which was very different from the anatase and rutile structures found in P25. The TNTs synthesized at 150 C had the highest specific surface area of 371 m²/g. However, the TNTs synthesized at 180 C exhibited the best photocatalytic efficiency and dye adsorption capacity, as compared to other TNTs, resulting from their well-developed mesopores.

Original language	English
Pages (from-to)	415-420
Number of pages	6
Journal	Current Applied Physics
Volume	14
Issue number	3
DOIs	https://doi.org/10.1016/j.cap.2013.12.018
State	Published - Mar 2014

Bibliographical note

Funding Information:
This subject is supported by Korea Ministry of Environment (MOE) as “GAIA Program” and the Carbon Valley Project of the Ministry of Knowledge Economy, Korea .

Keywords

Adsorption behavior
Photocatalytic properties
Specific surface area
TiO nanotube

Access to Document

10.1016/j.cap.2013.12.018

Cite this

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title = "Effect of hydrothermal temperature on photocatalytic properties of TiO 2 nanotubes",

abstract = "This work presents a study on the effect of hydrothermal temperature and structure on the photocatalytic activity of TiO2 nanotubes (TNT) prepared using commercially available TiO2 nanoparticles (P25). From the results, it was found that a higher hydrothermal temperature led to an increase in the specific surface area, total pore volume, and the size of mesopores in TNT. Moreover, the TNTs synthesized by the hydrothermal method had a new structure, which was very different from the anatase and rutile structures found in P25. The TNTs synthesized at 150 C had the highest specific surface area of 371 m2/g. However, the TNTs synthesized at 180 C exhibited the best photocatalytic efficiency and dye adsorption capacity, as compared to other TNTs, resulting from their well-developed mesopores.",

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author = "Lee, {Dong Su} and Lee, {Seul Yi} and Rhee, {Kyong Yop} and Park, {Soo Jin}",

note = "Funding Information: This subject is supported by Korea Ministry of Environment (MOE) as “GAIA Program” and the Carbon Valley Project of the Ministry of Knowledge Economy, Korea .",

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AU - Lee, Dong Su

AU - Lee, Seul Yi

AU - Rhee, Kyong Yop

AU - Park, Soo Jin

N1 - Funding Information: This subject is supported by Korea Ministry of Environment (MOE) as “GAIA Program” and the Carbon Valley Project of the Ministry of Knowledge Economy, Korea .

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AB - This work presents a study on the effect of hydrothermal temperature and structure on the photocatalytic activity of TiO2 nanotubes (TNT) prepared using commercially available TiO2 nanoparticles (P25). From the results, it was found that a higher hydrothermal temperature led to an increase in the specific surface area, total pore volume, and the size of mesopores in TNT. Moreover, the TNTs synthesized by the hydrothermal method had a new structure, which was very different from the anatase and rutile structures found in P25. The TNTs synthesized at 150 C had the highest specific surface area of 371 m2/g. However, the TNTs synthesized at 180 C exhibited the best photocatalytic efficiency and dye adsorption capacity, as compared to other TNTs, resulting from their well-developed mesopores.

KW - Adsorption behavior

KW - Photocatalytic properties

KW - Specific surface area

KW - TiO nanotube

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