Investigation of photocatalytic ozonation treatment of water over WO 3 under visible light irradiation

Takayuki Mano, Shunsuke Nishimoto, Yoshikazu Kameshima, Michihiro Miyake

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The aim of this study is to develop a highly efficient and environmentally friendly water treatment technique. Water treatment by photocatalytic ozonation over bare WO3 under visible light irradiation (O3/vis/ WO3) system was performed under different experimental conditions using a phenol aqueous solution as model wastewater. The effects of parameters such as the initial phenol concentration, water temperature, and initial solution pH on the total organic carbon (TOC) removal efficiency in the O 3/vis/ WO3 system were investigated. The results suggest that the TOC removal process consists of three stages, and the combined effect of photocatalysis and ozonation, which is important for complete TOC removal, became dominant in the third stage. Furthermore, the TOC removal efficiency increased with increasing water temperature in the O3/vis/WO 3 system.

Original languageEnglish
Pages (from-to)822-827
Number of pages6
JournalNippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
Volume119
Issue number1395
Publication statusPublished - Nov 2011

Fingerprint

Ozonization
Organic carbon
Irradiation
irradiation
water treatment
water temperature
Water
carbon
Phenol
Water treatment
phenols
water
Phenols
Photocatalysis
Wastewater
aqueous solutions
Temperature

Keywords

  • Ozonation
  • Phenol
  • Tungsten oxide
  • Visible-light-responsive photocatalyst
  • Water treatment

ASJC Scopus subject areas

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

Cite this

@article{ff8fa0472cfa4f5183b56185aaf6eae2,
title = "Investigation of photocatalytic ozonation treatment of water over WO 3 under visible light irradiation",
abstract = "The aim of this study is to develop a highly efficient and environmentally friendly water treatment technique. Water treatment by photocatalytic ozonation over bare WO3 under visible light irradiation (O3/vis/ WO3) system was performed under different experimental conditions using a phenol aqueous solution as model wastewater. The effects of parameters such as the initial phenol concentration, water temperature, and initial solution pH on the total organic carbon (TOC) removal efficiency in the O 3/vis/ WO3 system were investigated. The results suggest that the TOC removal process consists of three stages, and the combined effect of photocatalysis and ozonation, which is important for complete TOC removal, became dominant in the third stage. Furthermore, the TOC removal efficiency increased with increasing water temperature in the O3/vis/WO 3 system.",
keywords = "Ozonation, Phenol, Tungsten oxide, Visible-light-responsive photocatalyst, Water treatment",
author = "Takayuki Mano and Shunsuke Nishimoto and Yoshikazu Kameshima and Michihiro Miyake",
year = "2011",
month = "11",
language = "English",
volume = "119",
pages = "822--827",
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 = "1395",

}

TY - JOUR

T1 - Investigation of photocatalytic ozonation treatment of water over WO 3 under visible light irradiation

AU - Mano, Takayuki

AU - Nishimoto, Shunsuke

AU - Kameshima, Yoshikazu

AU - Miyake, Michihiro

PY - 2011/11

Y1 - 2011/11

N2 - The aim of this study is to develop a highly efficient and environmentally friendly water treatment technique. Water treatment by photocatalytic ozonation over bare WO3 under visible light irradiation (O3/vis/ WO3) system was performed under different experimental conditions using a phenol aqueous solution as model wastewater. The effects of parameters such as the initial phenol concentration, water temperature, and initial solution pH on the total organic carbon (TOC) removal efficiency in the O 3/vis/ WO3 system were investigated. The results suggest that the TOC removal process consists of three stages, and the combined effect of photocatalysis and ozonation, which is important for complete TOC removal, became dominant in the third stage. Furthermore, the TOC removal efficiency increased with increasing water temperature in the O3/vis/WO 3 system.

AB - The aim of this study is to develop a highly efficient and environmentally friendly water treatment technique. Water treatment by photocatalytic ozonation over bare WO3 under visible light irradiation (O3/vis/ WO3) system was performed under different experimental conditions using a phenol aqueous solution as model wastewater. The effects of parameters such as the initial phenol concentration, water temperature, and initial solution pH on the total organic carbon (TOC) removal efficiency in the O 3/vis/ WO3 system were investigated. The results suggest that the TOC removal process consists of three stages, and the combined effect of photocatalysis and ozonation, which is important for complete TOC removal, became dominant in the third stage. Furthermore, the TOC removal efficiency increased with increasing water temperature in the O3/vis/WO 3 system.

KW - Ozonation

KW - Phenol

KW - Tungsten oxide

KW - Visible-light-responsive photocatalyst

KW - Water treatment

UR - http://www.scopus.com/inward/record.url?scp=81255144647&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=81255144647&partnerID=8YFLogxK

M3 - Article

VL - 119

SP - 822

EP - 827

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 - 1395

ER -