Preparation and photocatalytic activity of [PWxMo 12-xO40]3-/TiO2 hybrid film composites

Akira Nakajima, Tomohisa Koike, Sayaka Yanagida, Toshihiro Isobe, Yoshikazu Kameshima, Kiyoshi Okada

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Keggin ions (PW12O403- (PW12), PW6Mo6O403- (PW6Mo 6), PMo12O403- (PMo12)) and TiO2 hybrid thin films were prepared using the layer-by-layer (LBL) method. Their photocatalytic activities were investigated using gaseous 2-propanol (IPA) decomposition. All films were transparent in the visible wavelength range. From XPS and UV-vis spectra, it was confirmed that LBL coating was attained using the same thicknesses between Keggin ions and TiO 2. For IPA decomposition, PW12 was the most effective for the combination with TiO2. The PMo12 possessed the highest adsorption capability against gaseous IPA, suggesting the effect of pseudo-liquid phase. Visible-light excitation of reduced Keggin ions will play an important role in the entire photocatalytic activity of IPA decomposition.

Original languageEnglish
Pages (from-to)130-135
Number of pages6
JournalApplied Catalysis A: General
Volume385
Issue number1-2
DOIs
Publication statusPublished - Sep 15 2010
Externally publishedYes

Fingerprint

Composite films
Ions
Decomposition
2-Propanol
Propanol
X ray photoelectron spectroscopy
Adsorption
Thin films
Coatings
Wavelength
Liquids

Keywords

  • 2-Propanol
  • Keggin
  • Layer-by-layer method
  • Photocatalyst
  • TiO

ASJC Scopus subject areas

  • Catalysis
  • Process Chemistry and Technology

Cite this

Preparation and photocatalytic activity of [PWxMo 12-xO40]3-/TiO2 hybrid film composites. / Nakajima, Akira; Koike, Tomohisa; Yanagida, Sayaka; Isobe, Toshihiro; Kameshima, Yoshikazu; Okada, Kiyoshi.

In: Applied Catalysis A: General, Vol. 385, No. 1-2, 15.09.2010, p. 130-135.

Research output: Contribution to journalArticle

Nakajima, Akira ; Koike, Tomohisa ; Yanagida, Sayaka ; Isobe, Toshihiro ; Kameshima, Yoshikazu ; Okada, Kiyoshi. / Preparation and photocatalytic activity of [PWxMo 12-xO40]3-/TiO2 hybrid film composites. In: Applied Catalysis A: General. 2010 ; Vol. 385, No. 1-2. pp. 130-135.
@article{6942c727f0694ddd8704bac432572970,
title = "Preparation and photocatalytic activity of [PWxMo 12-xO40]3-/TiO2 hybrid film composites",
abstract = "Keggin ions (PW12O403- (PW12), PW6Mo6O403- (PW6Mo 6), PMo12O403- (PMo12)) and TiO2 hybrid thin films were prepared using the layer-by-layer (LBL) method. Their photocatalytic activities were investigated using gaseous 2-propanol (IPA) decomposition. All films were transparent in the visible wavelength range. From XPS and UV-vis spectra, it was confirmed that LBL coating was attained using the same thicknesses between Keggin ions and TiO 2. For IPA decomposition, PW12 was the most effective for the combination with TiO2. The PMo12 possessed the highest adsorption capability against gaseous IPA, suggesting the effect of pseudo-liquid phase. Visible-light excitation of reduced Keggin ions will play an important role in the entire photocatalytic activity of IPA decomposition.",
keywords = "2-Propanol, Keggin, Layer-by-layer method, Photocatalyst, TiO",
author = "Akira Nakajima and Tomohisa Koike and Sayaka Yanagida and Toshihiro Isobe and Yoshikazu Kameshima and Kiyoshi Okada",
year = "2010",
month = "9",
day = "15",
doi = "10.1016/j.apcata.2010.07.001",
language = "English",
volume = "385",
pages = "130--135",
journal = "Applied Catalysis A: General",
issn = "0926-860X",
publisher = "Elsevier",
number = "1-2",

}

TY - JOUR

T1 - Preparation and photocatalytic activity of [PWxMo 12-xO40]3-/TiO2 hybrid film composites

AU - Nakajima, Akira

AU - Koike, Tomohisa

AU - Yanagida, Sayaka

AU - Isobe, Toshihiro

AU - Kameshima, Yoshikazu

AU - Okada, Kiyoshi

PY - 2010/9/15

Y1 - 2010/9/15

N2 - Keggin ions (PW12O403- (PW12), PW6Mo6O403- (PW6Mo 6), PMo12O403- (PMo12)) and TiO2 hybrid thin films were prepared using the layer-by-layer (LBL) method. Their photocatalytic activities were investigated using gaseous 2-propanol (IPA) decomposition. All films were transparent in the visible wavelength range. From XPS and UV-vis spectra, it was confirmed that LBL coating was attained using the same thicknesses between Keggin ions and TiO 2. For IPA decomposition, PW12 was the most effective for the combination with TiO2. The PMo12 possessed the highest adsorption capability against gaseous IPA, suggesting the effect of pseudo-liquid phase. Visible-light excitation of reduced Keggin ions will play an important role in the entire photocatalytic activity of IPA decomposition.

AB - Keggin ions (PW12O403- (PW12), PW6Mo6O403- (PW6Mo 6), PMo12O403- (PMo12)) and TiO2 hybrid thin films were prepared using the layer-by-layer (LBL) method. Their photocatalytic activities were investigated using gaseous 2-propanol (IPA) decomposition. All films were transparent in the visible wavelength range. From XPS and UV-vis spectra, it was confirmed that LBL coating was attained using the same thicknesses between Keggin ions and TiO 2. For IPA decomposition, PW12 was the most effective for the combination with TiO2. The PMo12 possessed the highest adsorption capability against gaseous IPA, suggesting the effect of pseudo-liquid phase. Visible-light excitation of reduced Keggin ions will play an important role in the entire photocatalytic activity of IPA decomposition.

KW - 2-Propanol

KW - Keggin

KW - Layer-by-layer method

KW - Photocatalyst

KW - TiO

UR - http://www.scopus.com/inward/record.url?scp=77955922387&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77955922387&partnerID=8YFLogxK

U2 - 10.1016/j.apcata.2010.07.001

DO - 10.1016/j.apcata.2010.07.001

M3 - Article

AN - SCOPUS:77955922387

VL - 385

SP - 130

EP - 135

JO - Applied Catalysis A: General

JF - Applied Catalysis A: General

SN - 0926-860X

IS - 1-2

ER -