A novel adsorbent photocatalyst consisting of titania and mesoporous silica nanoparticles

Hiroaki Uchiyama; Keisei Suzuki; Yuya Oaki; Hiroaki Imai

doi:10.1016/j.mseb.2005.08.007

A novel adsorbent photocatalyst consisting of titania and mesoporous silica nanoparticles

Hiroaki Uchiyama, Keisei Suzuki, Yuya Oaki, Hiroaki Imai

Department of Applied Chemistry

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

13 Citations (Scopus)

Abstract

The nanoscale combination of crystalline titania and mesoporous silica particles was successfully applied as a photocatalytic adsorbent for the rapid removal from air and complete decomposition of organic molecules. The composites consisted of anatase particles ca. 7 nm in diameter and mesoporous silica particles 10-100 nm in diameter, which provided a specific surface area of more than 1000 m²/g. The composites were prepared through the assembly of surfactant micelles and siliceous species in the presence of the titania nanoparticles. Acetaldehyde was quickly removed from air due to the large surface area of the mesoporous silica and then was gradually decomposed into carbon dioxide under UV illumination with mass transfer between the adsorbent and the titania photocatalyst.

Original language	English
Pages (from-to)	248-251
Number of pages	4
Journal	Materials Science and Engineering B: Solid-State Materials for Advanced Technology
Volume	123
Issue number	3
DOIs	https://doi.org/10.1016/j.mseb.2005.08.007
Publication status	Published - 2005 Nov 25

Keywords

Adsorbent
Composite
Mesoporous silica
Photocatalyst
Titania

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1016/j.mseb.2005.08.007

Cite this

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abstract = "The nanoscale combination of crystalline titania and mesoporous silica particles was successfully applied as a photocatalytic adsorbent for the rapid removal from air and complete decomposition of organic molecules. The composites consisted of anatase particles ca. 7 nm in diameter and mesoporous silica particles 10-100 nm in diameter, which provided a specific surface area of more than 1000 m2/g. The composites were prepared through the assembly of surfactant micelles and siliceous species in the presence of the titania nanoparticles. Acetaldehyde was quickly removed from air due to the large surface area of the mesoporous silica and then was gradually decomposed into carbon dioxide under UV illumination with mass transfer between the adsorbent and the titania photocatalyst.",

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T1 - A novel adsorbent photocatalyst consisting of titania and mesoporous silica nanoparticles

AU - Uchiyama, Hiroaki

AU - Suzuki, Keisei

AU - Oaki, Yuya

AU - Imai, Hiroaki

PY - 2005/11/25

Y1 - 2005/11/25

N2 - The nanoscale combination of crystalline titania and mesoporous silica particles was successfully applied as a photocatalytic adsorbent for the rapid removal from air and complete decomposition of organic molecules. The composites consisted of anatase particles ca. 7 nm in diameter and mesoporous silica particles 10-100 nm in diameter, which provided a specific surface area of more than 1000 m2/g. The composites were prepared through the assembly of surfactant micelles and siliceous species in the presence of the titania nanoparticles. Acetaldehyde was quickly removed from air due to the large surface area of the mesoporous silica and then was gradually decomposed into carbon dioxide under UV illumination with mass transfer between the adsorbent and the titania photocatalyst.

AB - The nanoscale combination of crystalline titania and mesoporous silica particles was successfully applied as a photocatalytic adsorbent for the rapid removal from air and complete decomposition of organic molecules. The composites consisted of anatase particles ca. 7 nm in diameter and mesoporous silica particles 10-100 nm in diameter, which provided a specific surface area of more than 1000 m2/g. The composites were prepared through the assembly of surfactant micelles and siliceous species in the presence of the titania nanoparticles. Acetaldehyde was quickly removed from air due to the large surface area of the mesoporous silica and then was gradually decomposed into carbon dioxide under UV illumination with mass transfer between the adsorbent and the titania photocatalyst.

KW - Adsorbent

KW - Composite

KW - Mesoporous silica

KW - Photocatalyst

KW - Titania

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A novel adsorbent photocatalyst consisting of titania and mesoporous silica nanoparticles

Abstract

Keywords

ASJC Scopus subject areas

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