Sol-gel synthesis, characterization and photocatalytic activity of mesoporous TiO2/γ-Al2O3 granules

Junseo Choi; Ji Young Ban; Suk Jin Choung; Jinsoo Kim; Haznan Abimanyu; Kye Sang Yoo

doi:10.1007/s10971-007-1592-0

Sol-gel synthesis, characterization and photocatalytic activity of mesoporous TiO₂/γ-Al₂O₃ granules

Junseo Choi, Ji Young Ban, Suk Jin Choung, Jinsoo Kim, Haznan Abimanyu, Kye Sang Yoo

Dept. of Chemical and Biomolecular Engineering

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

15 Scopus citations

Abstract

Mesoporous TiO₂/γ-Al₂O₃ composite granules were prepared by combining sol-gel/oil-drop method, using various titania solution. The product granules can be used as a photocatalyst or adsorbent in moving, fluidized bed reactors. The phase composition and pore structure of the granules can be controlled by calcination temperature and using different titania solution. In the photocatalysis of NH₃ decomposition, TiO₂/γ-Al₂O₃ granules using Degussa P25 powder treated thermally at 450 °C showed the highest catalytic ability. However, TiO₂/γ-Al₂O₃ granules using titania made by hydrothermal method had comparable performance in NH₃ decomposition.

Original language	English
Pages (from-to)	21-28
Number of pages	8
Journal	Journal of Sol-Gel Science and Technology
Volume	44
Issue number	1
DOIs	https://doi.org/10.1007/s10971-007-1592-0
State	Published - Oct 2007

Keywords

Crush strength
Photocatalysis
Pore structure
TiO/γ-AlO granules

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abstract = "Mesoporous TiO2/γ-Al2O3 composite granules were prepared by combining sol-gel/oil-drop method, using various titania solution. The product granules can be used as a photocatalyst or adsorbent in moving, fluidized bed reactors. The phase composition and pore structure of the granules can be controlled by calcination temperature and using different titania solution. In the photocatalysis of NH3 decomposition, TiO2/γ-Al2O3 granules using Degussa P25 powder treated thermally at 450 °C showed the highest catalytic ability. However, TiO2/γ-Al2O3 granules using titania made by hydrothermal method had comparable performance in NH3 decomposition.",

keywords = "Crush strength, Photocatalysis, Pore structure, TiO/γ-AlO granules",

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T1 - Sol-gel synthesis, characterization and photocatalytic activity of mesoporous TiO2/γ-Al2O3 granules

AU - Choi, Junseo

AU - Ban, Ji Young

AU - Choung, Suk Jin

AU - Kim, Jinsoo

AU - Abimanyu, Haznan

AU - Yoo, Kye Sang

PY - 2007/10

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AB - Mesoporous TiO2/γ-Al2O3 composite granules were prepared by combining sol-gel/oil-drop method, using various titania solution. The product granules can be used as a photocatalyst or adsorbent in moving, fluidized bed reactors. The phase composition and pore structure of the granules can be controlled by calcination temperature and using different titania solution. In the photocatalysis of NH3 decomposition, TiO2/γ-Al2O3 granules using Degussa P25 powder treated thermally at 450 °C showed the highest catalytic ability. However, TiO2/γ-Al2O3 granules using titania made by hydrothermal method had comparable performance in NH3 decomposition.

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KW - Photocatalysis

KW - Pore structure

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Sol-gel synthesis, characterization and photocatalytic activity of mesoporous TiO₂/γ-Al₂O₃ granules

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Keywords

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