Synthesis of mesoporous TiO2/γ-Al2O3 composite granules with different sol composition and calcination temperature

Junseo Choi; Jinsoo Kim; Kye Sang Yoo; Tai Gyu Lee

doi:10.1016/j.powtec.2007.06.022

Synthesis of mesoporous TiO₂/γ-Al₂O₃ composite granules with different sol composition and calcination temperature

Junseo Choi, Jinsoo Kim, Kye Sang Yoo, Tai Gyu Lee

Dept. of Chemical and Biomolecular Engineering

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

42 Scopus citations

Abstract

Mesoporous TiO₂/γ-Al₂O₃ composite granules were prepared by combining sol-gel method and oil-drop method. After calcination at 450 °C, the composite granules showed anatase and γ-Al₂O₃ phases with the specific surface area of 240-310 m²/g. The phase composition and pore structure of the granules can be controlled by calcination temperature and the mixing ratio of boehmite sol and titania sol. The product granules can be used as a photocatalyst or adsorbent in moving or fluidized bed reactors.

Original language	English
Pages (from-to)	83-88
Number of pages	6
Journal	Powder Technology
Volume	181
Issue number	1
DOIs	https://doi.org/10.1016/j.powtec.2007.06.022
State	Published - 30 Jan 2008

Keywords

Alumina
Granulation
Nanostructure
Pore structure
Sol-gel
Titania

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10.1016/j.powtec.2007.06.022

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title = "Synthesis of mesoporous TiO2/γ-Al2O3 composite granules with different sol composition and calcination temperature",

abstract = "Mesoporous TiO2/γ-Al2O3 composite granules were prepared by combining sol-gel method and oil-drop method. After calcination at 450 °C, the composite granules showed anatase and γ-Al2O3 phases with the specific surface area of 240-310 m2/g. The phase composition and pore structure of the granules can be controlled by calcination temperature and the mixing ratio of boehmite sol and titania sol. The product granules can be used as a photocatalyst or adsorbent in moving or fluidized bed reactors.",

keywords = "Alumina, Granulation, Nanostructure, Pore structure, Sol-gel, Titania",

author = "Junseo Choi and Jinsoo Kim and Yoo, \{Kye Sang\} and Lee, \{Tai Gyu\}",

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AU - Choi, Junseo

AU - Kim, Jinsoo

AU - Yoo, Kye Sang

AU - Lee, Tai Gyu

PY - 2008/1/30

Y1 - 2008/1/30

N2 - Mesoporous TiO2/γ-Al2O3 composite granules were prepared by combining sol-gel method and oil-drop method. After calcination at 450 °C, the composite granules showed anatase and γ-Al2O3 phases with the specific surface area of 240-310 m2/g. The phase composition and pore structure of the granules can be controlled by calcination temperature and the mixing ratio of boehmite sol and titania sol. The product granules can be used as a photocatalyst or adsorbent in moving or fluidized bed reactors.

AB - Mesoporous TiO2/γ-Al2O3 composite granules were prepared by combining sol-gel method and oil-drop method. After calcination at 450 °C, the composite granules showed anatase and γ-Al2O3 phases with the specific surface area of 240-310 m2/g. The phase composition and pore structure of the granules can be controlled by calcination temperature and the mixing ratio of boehmite sol and titania sol. The product granules can be used as a photocatalyst or adsorbent in moving or fluidized bed reactors.

KW - Alumina

KW - Granulation

KW - Nanostructure

KW - Pore structure

KW - Sol-gel

KW - Titania

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M3 - Article

AN - SCOPUS:37849005427

SN - 0032-5910

VL - 181

SP - 83

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JO - Powder Technology

JF - Powder Technology

IS - 1

ER -

Synthesis of mesoporous TiO₂/γ-Al₂O₃ composite granules with different sol composition and calcination temperature

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Keywords

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