Direct Synthesis of Lanthanide-containing SBA-15 under Weak Acidic Conditions and its Catalytic Study

Mu, Zhen, Li, Jin Jun, Hao, ZhenPing and Qiao, Shi Zhang (2008) Direct Synthesis of Lanthanide-containing SBA-15 under Weak Acidic Conditions and its Catalytic Study. Microporous And Mesoporous Materials, 113 1-3: 72-80. doi:10.1016/j.micromeso.2007.11.004


Author Mu, Zhen
Li, Jin Jun
Hao, ZhenPing
Qiao, Shi Zhang
Title Direct Synthesis of Lanthanide-containing SBA-15 under Weak Acidic Conditions and its Catalytic Study
Journal name Microporous And Mesoporous Materials   Check publisher's open access policy
ISSN 1387-1811
Publication date 2008-08-01
Year available 2008
Sub-type Article (original research)
DOI 10.1016/j.micromeso.2007.11.004
Open Access Status DOI
Volume 113
Issue 1-3
Start page 72
End page 80
Total pages 9
Editor M. Stoecker
Place of publication Amsterdam, Netherlands
Publisher Alsevier
Language eng
Subject C1
100708 Nanomaterials
859801 Management of Gaseous Waste from Energy Activities (excl. Greenhouse Gases)
Abstract Lanthanide (Ln including La, Ce and Nd) containing SBA-15 molecular sieves with molar ratio Ln/Si = 0.01–0.2 were prepared via direct synthesis under weak acidic conditions (pH 1.5–3.0). Characterizations of these samples were done by powder X-ray diffraction, N2 adsorption, inductively coupled plasma atomic emission spectrometry (ICP-AES), FT-IR spectroscopy, and diffuse reflectance ultraviolet spectroscopy. All the samples show a highly ordered two-dimensional hexagonal mesostructure. N2 adsorption testifies that all the Ln-containing SBA-15 materials have the type IV isotherms with type H1 hysteresis loop as well as high specific surface area (798–925 m2/g) and narrow pore size distribution. The diffuse reflectance UV–vis, ICP-AES, and the wide-angle XRD spectra show that most of the lanthanide ions are better dispersed in the calcined materials. The Ln-SBA-15 supported Pd catalysts show high catalytic activity in the oxidation of benzene. The results reveal that Ln-SBA-15 materials can be used as potential supports for the catalytic oxidation of VOCs.
Keyword Weak acidic conditions
Mesoporous materials
Rare earth
VOCs
Catalytic oxidation
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2009 Higher Education Research Data Collection
Australian Institute for Bioengineering and Nanotechnology Publications
 
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Created: Thu, 09 Apr 2009, 23:38:46 EST by Mrs Jennifer Brown on behalf of Aust Institute for Bioengineering & Nanotechnology