An Investigation on Properties of Sn-SBA-16 Synthesized without Mineral Acid Added

Jia Feng Wu; Yu Mei Zhao; Peng Liang

doi:10.4028/www.scientific.net/AMR.652-654.707

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 652-654An Investigation on Properties of Sn-SBA-16...

An Investigation on Properties of Sn-SBA-16 Synthesized without Mineral Acid Added

Abstract:

A series of mesoporous materials Sn-SBA-16 was prepared by one-step hydrothermal synthesis with F127, TEOS and SnCl4•5H2O as template, silica source and tin source, respectively, without mineral acid added. The samples were characterized by XRD, N2 sorption, TEM and UV–Vis. The acidity property of acidic sites in the surface of the samples was investigated by pyridine-absorbed FT-IR. The results indicate that the materials exhibit high surface area and uniform pore distribution. The samples contain both Lewis and Brönsted acid sites, moreover, the total concentration of both Lewis and Brönsted acid sites increases with the decrease of the ratio of Si to Sn. And Lewis acid site plays the dominate role.

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Periodical:

Advanced Materials Research (Volumes 652-654)

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707-710

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.652-654.707

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Online since:

January 2013

Authors:

Jia Feng Wu, Yu Mei Zhao, Peng Liang

Keywords:

Acid Sites, In Situ IR Spectra, Mesoporous Material, Sn-SBA-16

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