Anatase formation during the synthesis of mesoporous titania and its photocatalytic effect

被引：87

作者：

Beyers, E ^{[1
]}

Cool, P ^{[1
]}

Vansant, EF ^{[1
]}

机构：

[1] Univ Antwerp, Lab Adsorpt & Catalysis, Dept Chem, B-2610 Antwerp, Belgium

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2005年 / 109卷 / 20期

关键词：

D O I：

10.1021/jp050310+

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Thermally stable mesoporous titania can be synthesized following different synthesis routes. In this paper, mesoporous titania was synthesized applying the evaporation-induced self-assembly (EISA) method. The mesostructured titania was treated with an NH4OH solution to increase the thermal stability. The influence of this postsynthesis treatment on the anatase formation was investigated using different initial synthesis conditions. Mesoporous titania was synthesized under both acidic and basic conditions, with hexadecylamine and cetyltrimethylammonium bromide as surfactants. The samples were investigated with FT-Raman to investigate when exactly anatase was formed during the synthesis. It will be shown that the anatase formation depends mainly on the initial synthesis conditions. This study shows that anatase can already be formed before calcination under certain circumstances. Furthermore, the accessibility of the anatase phase influenced the photocatalytic activity.

引用

页码：10081 / 10086

页数：6

共 29 条

[1] General predictive syntheses of cubic, hexagonal, and lamellar silica and titania mesostructured thin films
Alberius, PCA
Frindell, KL
Hayward, RC
Kramer, EJ
Stucky, GD
Chmelka, BF
[J]. CHEMISTRY OF MATERIALS, 2002, 14 (08) : 3284 - 3294
[2] Preparation of nanosize anatase and rutile TiO2 by hydrothermal treatment of microemulsions and their activity for photocatalytic wet oxidation of phenol
Andersson, M
Österlund, L
Ljungström, S
Palmqvist, A
[J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2002, 106 (41) : 10674 - 10679
[3] SYNTHESIS OF HEXAGONALLY PACKED MESOPOROUS TIO2 BY A MODIFIED SOL-GEL METHOD
ANTONELLI, DM
YING, JY
[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH, 1995, 34 (18): : 2014 - 2017
[4] Photocatalytic decomposition of methylene blue using nanocrystalline anatase titania prepared by ultrasonic technique
Awati, PS
Awate, SV
Shah, PP
Ramaswamy, V
[J]. CATALYSIS COMMUNICATIONS, 2003, 4 (08) : 393 - 400
[5] Hierarchically mesoporous/macroporous metal oxides templated from polyethylene oxide surfactant assemblies
Blin, JL
Léonard, A
Yuan, ZY
Gigot, L
Vantomme, A
Cheetham, AK
Su, BL
[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2003, 42 (25) : 2872 - 2875
[6] Enhanced surface area in thermally stable pure mesoporous TiO2
Cabrera, S
El Haskouri, J
Beltrán-Porter, A
Beltrán-Porter, D
Marcos, MD
Amorós, P
[J]. SOLID STATE SCIENCES, 2000, 2 (05) : 513 - 518
[7] Surfactant-directed synthesis of mesoporous titania with nanocrystalline anatase walls and remarkable thermal stability
Cassiers, K
Linssen, T
Mathieu, M
Bai, YQ
Zhu, HY
Cool, P
Vansant, EF
[J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (12) : 3713 - 3721
[8] Controlled formation of amine-templated mesostructured zirconia with remarkably high thermal stability
Cassiers, K
Linssen, T
Aerts, K
Cool, P
Lebedev, O
Van Tendeloo, G
Van Grieken, R
Vansant, EF
[J]. JOURNAL OF MATERIALS CHEMISTRY, 2003, 13 (12) : 3033 - 3039
[9] A new strategy towards ultra stable mesoporous titania with nanosized anatase walls
Cassiers, K
Linssen, T
Meynen, V
Van der Voort, P
Cool, P
Vansant, EF
[J]. CHEMICAL COMMUNICATIONS, 2003, (10) : 1178 - 1179
[10] Application of nano TiO2 towards polluted water treatment combined with electro-photochemical method
Chen, JS
Liu, MC
Zhang, L
Zhang, JD
Jin, LT
[J]. WATER RESEARCH, 2003, 37 (16) : 3815 - 3820

← 1 2 3 →