Self-cleaning efficiency of titanium dioxide surface under simultaneous UV irradiation of various intensities and water flow

Shunsuke Nishimoto, Sana Tomoishi, Yoshikazu Kameshima, Eiji Fujii, Michihiro Miyake

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We investigated the self-cleaning efficiencies of titanium dioxide (TiO2) surface under ultraviolet (UV) irradiation in combination with a water flow (UV/water) condition using oleic acid as the model surface contaminant. UV light intensities were varied from a typical indoor intensity level to a representative outdoor intensity level in Japan. The combined UV/water treatment exhibited a much higher self-cleaning efficiency than either condition alone. This suggests that the self-cleaning effect occurred at nanometersized photo-induced superhydrophilic domains of the TiO2 film surface located at the interface of the TiO2 surface, oleic acid, and air.

Original languageEnglish
Pages (from-to)513-516
Number of pages4
JournalNippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
Volume122
Issue number1426
DOIs
Publication statusPublished - 2014

Fingerprint

water flow
titanium oxides
Titanium dioxide
cleaning
Cleaning
Irradiation
irradiation
oleic acid
Water
Oleic acid
Oleic Acid
water treatment
Water treatment
ultraviolet radiation
luminous intensity
contaminants
Japan
Impurities
titanium dioxide
air

Keywords

  • Photocatalyst
  • Self-cleaning
  • Superhydrophilicity
  • Titanium dioxide

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry
  • Chemistry(all)
  • Condensed Matter Physics

Cite this

@article{dbe16e6fc9e3411d807fe40959abdcf4,
title = "Self-cleaning efficiency of titanium dioxide surface under simultaneous UV irradiation of various intensities and water flow",
abstract = "We investigated the self-cleaning efficiencies of titanium dioxide (TiO2) surface under ultraviolet (UV) irradiation in combination with a water flow (UV/water) condition using oleic acid as the model surface contaminant. UV light intensities were varied from a typical indoor intensity level to a representative outdoor intensity level in Japan. The combined UV/water treatment exhibited a much higher self-cleaning efficiency than either condition alone. This suggests that the self-cleaning effect occurred at nanometersized photo-induced superhydrophilic domains of the TiO2 film surface located at the interface of the TiO2 surface, oleic acid, and air.",
keywords = "Photocatalyst, Self-cleaning, Superhydrophilicity, Titanium dioxide",
author = "Shunsuke Nishimoto and Sana Tomoishi and Yoshikazu Kameshima and Eiji Fujii and Michihiro Miyake",
year = "2014",
doi = "10.2109/jcersj2.122.513",
language = "English",
volume = "122",
pages = "513--516",
journal = "Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan",
issn = "1882-0743",
publisher = "Ceramic Society of Japan/Nippon Seramikkusu Kyokai",
number = "1426",

}

TY - JOUR

T1 - Self-cleaning efficiency of titanium dioxide surface under simultaneous UV irradiation of various intensities and water flow

AU - Nishimoto, Shunsuke

AU - Tomoishi, Sana

AU - Kameshima, Yoshikazu

AU - Fujii, Eiji

AU - Miyake, Michihiro

PY - 2014

Y1 - 2014

N2 - We investigated the self-cleaning efficiencies of titanium dioxide (TiO2) surface under ultraviolet (UV) irradiation in combination with a water flow (UV/water) condition using oleic acid as the model surface contaminant. UV light intensities were varied from a typical indoor intensity level to a representative outdoor intensity level in Japan. The combined UV/water treatment exhibited a much higher self-cleaning efficiency than either condition alone. This suggests that the self-cleaning effect occurred at nanometersized photo-induced superhydrophilic domains of the TiO2 film surface located at the interface of the TiO2 surface, oleic acid, and air.

AB - We investigated the self-cleaning efficiencies of titanium dioxide (TiO2) surface under ultraviolet (UV) irradiation in combination with a water flow (UV/water) condition using oleic acid as the model surface contaminant. UV light intensities were varied from a typical indoor intensity level to a representative outdoor intensity level in Japan. The combined UV/water treatment exhibited a much higher self-cleaning efficiency than either condition alone. This suggests that the self-cleaning effect occurred at nanometersized photo-induced superhydrophilic domains of the TiO2 film surface located at the interface of the TiO2 surface, oleic acid, and air.

KW - Photocatalyst

KW - Self-cleaning

KW - Superhydrophilicity

KW - Titanium dioxide

UR - http://www.scopus.com/inward/record.url?scp=84901760657&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84901760657&partnerID=8YFLogxK

U2 - 10.2109/jcersj2.122.513

DO - 10.2109/jcersj2.122.513

M3 - Article

VL - 122

SP - 513

EP - 516

JO - Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan

JF - Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan

SN - 1882-0743

IS - 1426

ER -