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Received July 22, 2009
Accepted November 16, 2009
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Characterization and synthesis of Ce-incorporated mesoporous molecular sieves under microwave irradiation condition
1School of Chemistry and Chemical Engineering, Jiangsu University, Xuefu Road 301#, Zhenjiang 212013, P. R. China 2School of Material Science & Engineering, Jiangsu University, Xuefu Road 301#, Zhenjiang 212013, P. R. China
qianzhao@ujs.edu.cn
Korean Journal of Chemical Engineering, July 2010, 27(4), 1310-1315(6), 10.1007/s11814-010-0182-y
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Abstract
Ce-incorporated MCM-41 mesoporous molecular sieves (CeMCM-41) were synthesized by microwave irradiation method from sodium silicate and ammonium cerium (IV) nitrate precursors and using cetyltrimethyl ammonium bromide (CTAB) as template. The resulting samples were characterized by means of XRD, TEM, FT-IR, UV-Vis, XPS and N2 physical adsorption, respectively. The effect of the Si/Ce molar ratio on the textural properties of CeMCM-41 was investigated. The results reveal that the CeMCM-41 was successfully synthesized. The resultant mesoporous materials have specific surface areas in the range of 602-1,216 m2/g and pore sizes in the range of ca. 2.6-2.9 nm. The structural properties are related to the amount of cerium incorporation. The surface area and pore volume of the resulting CeMCM-41 were gradually reduced as the cerium content in the sample increased, and the mesoporous ordering diminished.
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References
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