The preparation of N-doped titanium dioxide by metallothermic reduction method and their photocatalytic activity

Takahiro Ohkubo; Takahito Akita; Hirobumi Shibata; Susumu Niwa; Katsuhiro Nishiyama; Hideki Sakai; Masahiko Abe

doi:10.2497/jjspm.52.489

The preparation of N-doped titanium dioxide by metallothermic reduction method and their photocatalytic activity

Takahiro Ohkubo, Takahito Akita, Hirobumi Shibata, Susumu Niwa, Katsuhiro Nishiyama, Hideki Sakai, Masahiko Abe

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

2 Citations (Scopus)

Abstract

N-doped titanium dioxide (TiO ₂) particles were prepared by metallothermic reduction (MTR) method and their photocatalytic activities under UV and visible light irradiation were investigated. The mixture composed of anatase-type TiO ₂, Mg and NaN ₃ was calcined at 600°C in nitrogen atmosphere for 1 hour. Although two types of TiO ₂ particles, with low and high crystallinity, were used as starting materials, both obtained particles kept anatase-type crystalline and XPS spectra of them had peaks assigned to Ti-N bond. The absorption onset of the particles prepared from TiO ₂ with low crystallinity shifted significantly from UV region to visible one. This N-doped TiO ₂ particles had photocatalytic activity against oxidative degradation of gaseous 2-propanol even under visible light (> 440 nm) irradiation.

Original language	English
Pages (from-to)	489-494
Number of pages	6
Journal	Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume	52
Issue number	7
DOIs	https://doi.org/10.2497/jjspm.52.489
Publication status	Published - Jul 2005
Externally published	Yes

Keywords

Metallothermic reduction
N-doped titanium dioxide
Photoctalytic activity

ASJC Scopus subject areas

Mechanical Engineering
Industrial and Manufacturing Engineering
Metals and Alloys
Materials Chemistry

Access to Document

10.2497/jjspm.52.489

Cite this

The preparation of N-doped titanium dioxide by metallothermic reduction method and their photocatalytic activity. / Ohkubo, Takahiro; Akita, Takahito; Shibata, Hirobumi et al.
In: Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy, Vol. 52, No. 7, 07.2005, p. 489-494.

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

@article{a1a1a26eee214328b5f25444c674b5f6,

title = "The preparation of N-doped titanium dioxide by metallothermic reduction method and their photocatalytic activity",

abstract = "N-doped titanium dioxide (TiO 2) particles were prepared by metallothermic reduction (MTR) method and their photocatalytic activities under UV and visible light irradiation were investigated. The mixture composed of anatase-type TiO 2, Mg and NaN 3 was calcined at 600°C in nitrogen atmosphere for 1 hour. Although two types of TiO 2 particles, with low and high crystallinity, were used as starting materials, both obtained particles kept anatase-type crystalline and XPS spectra of them had peaks assigned to Ti-N bond. The absorption onset of the particles prepared from TiO 2 with low crystallinity shifted significantly from UV region to visible one. This N-doped TiO 2 particles had photocatalytic activity against oxidative degradation of gaseous 2-propanol even under visible light (> 440 nm) irradiation.",

keywords = "Metallothermic reduction, N-doped titanium dioxide, Photoctalytic activity",

author = "Takahiro Ohkubo and Takahito Akita and Hirobumi Shibata and Susumu Niwa and Katsuhiro Nishiyama and Hideki Sakai and Masahiko Abe",

year = "2005",

month = jul,

doi = "10.2497/jjspm.52.489",

language = "English",

volume = "52",

pages = "489--494",

journal = "Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy",

issn = "0532-8799",

publisher = "Funtai Funamtsu Yakin Kyokai/Japan Soc. of Powder Metallurgy",

number = "7",

}

TY - JOUR

T1 - The preparation of N-doped titanium dioxide by metallothermic reduction method and their photocatalytic activity

AU - Ohkubo, Takahiro

AU - Akita, Takahito

AU - Shibata, Hirobumi

AU - Niwa, Susumu

AU - Nishiyama, Katsuhiro

AU - Sakai, Hideki

AU - Abe, Masahiko

PY - 2005/7

Y1 - 2005/7

N2 - N-doped titanium dioxide (TiO 2) particles were prepared by metallothermic reduction (MTR) method and their photocatalytic activities under UV and visible light irradiation were investigated. The mixture composed of anatase-type TiO 2, Mg and NaN 3 was calcined at 600°C in nitrogen atmosphere for 1 hour. Although two types of TiO 2 particles, with low and high crystallinity, were used as starting materials, both obtained particles kept anatase-type crystalline and XPS spectra of them had peaks assigned to Ti-N bond. The absorption onset of the particles prepared from TiO 2 with low crystallinity shifted significantly from UV region to visible one. This N-doped TiO 2 particles had photocatalytic activity against oxidative degradation of gaseous 2-propanol even under visible light (> 440 nm) irradiation.

AB - N-doped titanium dioxide (TiO 2) particles were prepared by metallothermic reduction (MTR) method and their photocatalytic activities under UV and visible light irradiation were investigated. The mixture composed of anatase-type TiO 2, Mg and NaN 3 was calcined at 600°C in nitrogen atmosphere for 1 hour. Although two types of TiO 2 particles, with low and high crystallinity, were used as starting materials, both obtained particles kept anatase-type crystalline and XPS spectra of them had peaks assigned to Ti-N bond. The absorption onset of the particles prepared from TiO 2 with low crystallinity shifted significantly from UV region to visible one. This N-doped TiO 2 particles had photocatalytic activity against oxidative degradation of gaseous 2-propanol even under visible light (> 440 nm) irradiation.

KW - Metallothermic reduction

KW - N-doped titanium dioxide

KW - Photoctalytic activity

UR - http://www.scopus.com/inward/record.url?scp=25444474174&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=25444474174&partnerID=8YFLogxK

U2 - 10.2497/jjspm.52.489

DO - 10.2497/jjspm.52.489

M3 - Article

AN - SCOPUS:25444474174

SN - 0532-8799

VL - 52

SP - 489

EP - 494

JO - Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy

JF - Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy

IS - 7

ER -

The preparation of N-doped titanium dioxide by metallothermic reduction method and their photocatalytic activity

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this