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

Journal Article · Thu Jun 15 04:00:00 EDT 2006 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/j.jssc.2006.03.020· OSTI ID:20905314

Chandra, Debraj ^[1]; Kishor Mal, Nawal ^[2]; Mukherjee, Manabendra ^[3]; Bhaumik, Asim ^[1]

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1. Department of Materials Science, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032 (India)
2. Dynamic Materials Research Group, National Institute of Advance Industrial Science and Technology, Ikeda, Osaka 563-8577 (Japan)
3. Surface Physics Division, Saha Institute of Nuclear Physics, Bidhannagar, Kolkata 700 064 (India)

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, C{sub 12}H{sub 25}-(OC{sub 2}H{sub 4}){sub 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{sub 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 H{sub 2}O{sub 2} as oxidant. - Graphical abstract: Titanium-rich highly ordered mesoporous silica synthesized by using a mixed surfactant system.

• OSTI ID: 20905314
• Journal Information: Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Journal Issue: 6 Vol. 179; ISSN 0022-4596; ISSN JSSCBI
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
BROMIDES
FOURIER TRANSFORMATION
HYDROGEN PEROXIDE
OXIDATION
TARTARIC ACID
TITANIUM SILICATES
X-RAY DIFFRACTION
X-RAY PHOTOELECTRON SPECTROSCOPY