Ultrastable TiO2 foams derived macro-/meso-porous material and its photocatalytic activity

Yong Zhao; Xintong Zhang; Jin Zhai; Lei Jiang; Zhaoyue Liu; Shunsuke Nishimoto; Taketoshi Murakami; Akira Fujishima; Daoben Zhu

doi:10.1016/j.micromeso.2008.05.024

Ultrastable TiO₂ foams derived macro-/meso-porous material and its photocatalytic activity

Yong Zhao, Xintong Zhang, Jin Zhai, Lei Jiang, Zhaoyue Liu, Shunsuke Nishimoto, Taketoshi Murakami, Akira Fujishima, Daoben Zhu

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

24 Citations (Scopus)

Abstract

Particles-stabilized TiO₂ icecream-like foam was prepared by a versatile mechanical stirring method. It showed ultrastable state in air for several days. After calcining the wet foam, an open honeycomb-like structure with macro-/meso-porosity was formed. The photocatalytic characters of as-prepared macro-/meso-porous materials were detected, and the results indicated that the catalytic activity is increased about 120% compared to that of nanoparticles with acetaldehyde as a probe. Composite porous structure provided open pathways for high accessibility of molecular transport, increased surface area for more active center, and enhanced light-collection efficiency due to the inner light scattering effect, resulting in better photocatalytic activity.

Original language	English
Pages (from-to)	710-714
Number of pages	5
Journal	Microporous and Mesoporous Materials
Volume	116
Issue number	1-3
DOIs	https://doi.org/10.1016/j.micromeso.2008.05.024
Publication status	Published - Dec 2008
Externally published	Yes

Keywords

Composite channel
Hierarchical structure
Photocatalytic
TiO

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)
Condensed Matter Physics
Mechanics of Materials

Access to Document

10.1016/j.micromeso.2008.05.024

Cite this

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title = "Ultrastable TiO2 foams derived macro-/meso-porous material and its photocatalytic activity",

abstract = "Particles-stabilized TiO2 icecream-like foam was prepared by a versatile mechanical stirring method. It showed ultrastable state in air for several days. After calcining the wet foam, an open honeycomb-like structure with macro-/meso-porosity was formed. The photocatalytic characters of as-prepared macro-/meso-porous materials were detected, and the results indicated that the catalytic activity is increased about 120% compared to that of nanoparticles with acetaldehyde as a probe. Composite porous structure provided open pathways for high accessibility of molecular transport, increased surface area for more active center, and enhanced light-collection efficiency due to the inner light scattering effect, resulting in better photocatalytic activity.",

keywords = "Composite channel, Hierarchical structure, Photocatalytic, TiO",

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doi = "10.1016/j.micromeso.2008.05.024",

language = "English",

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T1 - Ultrastable TiO2 foams derived macro-/meso-porous material and its photocatalytic activity

AU - Zhao, Yong

AU - Zhang, Xintong

AU - Zhai, Jin

AU - Jiang, Lei

AU - Liu, Zhaoyue

AU - Nishimoto, Shunsuke

AU - Murakami, Taketoshi

AU - Fujishima, Akira

AU - Zhu, Daoben

PY - 2008/12

Y1 - 2008/12

N2 - Particles-stabilized TiO2 icecream-like foam was prepared by a versatile mechanical stirring method. It showed ultrastable state in air for several days. After calcining the wet foam, an open honeycomb-like structure with macro-/meso-porosity was formed. The photocatalytic characters of as-prepared macro-/meso-porous materials were detected, and the results indicated that the catalytic activity is increased about 120% compared to that of nanoparticles with acetaldehyde as a probe. Composite porous structure provided open pathways for high accessibility of molecular transport, increased surface area for more active center, and enhanced light-collection efficiency due to the inner light scattering effect, resulting in better photocatalytic activity.

AB - Particles-stabilized TiO2 icecream-like foam was prepared by a versatile mechanical stirring method. It showed ultrastable state in air for several days. After calcining the wet foam, an open honeycomb-like structure with macro-/meso-porosity was formed. The photocatalytic characters of as-prepared macro-/meso-porous materials were detected, and the results indicated that the catalytic activity is increased about 120% compared to that of nanoparticles with acetaldehyde as a probe. Composite porous structure provided open pathways for high accessibility of molecular transport, increased surface area for more active center, and enhanced light-collection efficiency due to the inner light scattering effect, resulting in better photocatalytic activity.

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KW - Hierarchical structure

KW - Photocatalytic

KW - TiO

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