Titanium-rich highly ordered mesoporous silica synthesized by using a mixed surfactant system

被引：38

作者：

Chandra, Debraj

Mal, Nawal Kishor

Mukherjee, Manabendra

Bhaumik, Asim ^{[1
]}

机构：

[1] Indian Assoc Cultivat Sci, Dept Mat Sci, Kolkata 700032, W Bengal, India

[2] Natl Inst Adv Ind Sci & Technol, Dynam Mat Res Grp, Ikeda, Osaka 5638577, Japan

[3] Saha Inst Nucl Phys, Surface Phys Div, Kolkata 700064, W Bengal, India

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2006年 / 179卷 / 06期

关键词：

mesoporolus materials; mixed-surfactant; titanium silicate; partial oxidation;

D O I：

10.1016/j.jssc.2006.03.020

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A new titanium-rich highly ordered 2-D hexagonal mesoporous titanium silicate has been synthesized using a mixture of cationic (cetyltrimethylammonium bromide, CTAB) and non-ionic (Brij-35, C12H25-(OC2H4)(23)-OH, a polyether and aliphatic hydrocarbon chain surfactant) mixed surfactant system as the supramolecular structure directing agent (SDA) in the presence of tartaric acid (TA) as a mineralizer of Ti(IV). XRD, N-2 adsorption and TEM data suggested the presence of mesophase with hexagonal pore arrangements and the UV-visible, FT IR and XPS studies suggested the incorporation of mostly tetrahedral titanium (IV) species in the highly ordered silica network. This mesoporous titanium silicate material showed excellent catalytic activity and selectivity in the epoxidation of styrene using dilute aqueous H2O2 as oxidant. (c) 2006 Elsevier Inc. All rights reserved.

引用

页码：1802 / 1807

页数：6

共 27 条

[1] Ammoximation of ketones catalyzed by titanium-containing ethane bridged hybrid mesoporous silsesquioxane [J].