Titanium Containing Aluminophosphate Molecular Sieve for Oxidation of Styrene

Salasiah Endud; Nurliana Roslan; zainab ramli; Hendrik O. Lintang

doi:10.4028/www.scientific.net/AMR.1109.360

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1109Titanium Containing Aluminophosphate Molecular...

Titanium Containing Aluminophosphate Molecular Sieve for Oxidation of Styrene

Abstract:

Microporous aluminophosphate (AlPO-5) and titanium aluminophosphate (TAPO-5) molecular sieves, which are zeolite-like materials have been synthesized by direct hydrothermal method using two different templates; triethylamine (TEA) as organic base and tetraethylammonium hydroxide (TEAOH) as alkali base. XRD patterns confirmed that the TAPO-5 catalysts are identical with AFI structure but the crystallinity of the catalysts had decreased after the incorporation of titanium into the framework. Besides that, characterization of TAPO-5 catalysts using DRUV-Vis confirmed the coordination of titanium species and this evidenced also supported by the result ²⁷Al MAS NMR. Catalytic performance of the TAPO-5 catalysts was tested in the oxidation of styrene to produce benzaldehyde and phenylacetaldehyde in the presence of hydrogen peroxide as oxidant. TAPO-5 catalysts showed higher activity in styrene oxidation compared to AlPO-5. Keywords : zeolite; aluminophosphate; titanium; organic template; styrene

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Periodical:

Advanced Materials Research (Volume 1109)

Pages:

360-364

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1109.360

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Online since:

June 2015

Authors:

Salasiah Endud*, Nurliana Roslan, zainab ramli, Hendrik O. Lintang

Keywords:

Aluminophosphate, Organic Template, Styrene, Titanium, Zeolite

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* - Corresponding Author

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