Effects of aging conditions on the structural properties of mesoporous SiO2/TiO2 composite materials with crystallized framework

Well-organized mesoporous SiO2/TiO2 materials with crystallized framework were synthesized. The resultant materials showed high surface area (180–300 m2/g), narrow pore-size distribution (3.5–6 nm), and nanocrystalline framework. The influences of aging conditions on the mesoporous 80TiO2–20SiO2 mat...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Journal of materials research 2006-02, Vol.21 (2), p.380-385
Hauptverfasser: Li, Hua, Shen, Wei-hua, Shi, Jian-lin, Xiong, Liang-ming, Liang, Jian, Ruan, Meilin
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Well-organized mesoporous SiO2/TiO2 materials with crystallized framework were synthesized. The resultant materials showed high surface area (180–300 m2/g), narrow pore-size distribution (3.5–6 nm), and nanocrystalline framework. The influences of aging conditions on the mesoporous 80TiO2–20SiO2 materials were investigated. The water in the initial solution is beneficial for the mesostructural organization of the as-prepared sample while air moisture (relative humidity) during the aging process plays a key role in the crystallization of the calcined sample. Low aging temperature is another decisive factor to the formation of the mesostructure.
ISSN:0884-2914
2044-5326
DOI:10.1557/jmr.2006.0044