Synthesis of b-oriented TS-1 films on chitosan-modified α-Al 2O3 substrates

Xiaodong Wang, Baoquan Zhang, Xiufeng Liu, Jerry Lin

Research output: Contribution to journalArticle

87 Citations (Scopus)

Abstract

The synthesis of b-oriented TS-1 films as a catalytic membrane on chitosan-modified α-Al2O3 substrates is discussed. TS-1 films result in molecular sieving effect and catalyze oxidative reactions, including selective oxidative reaction of alcohols, hydroxylation of aromatics, oxyfunctionalization of n-hexane to hexanols and hexanomes, and photocatalytic oxidation. Chitosan will serve as the structure-directing matrix to induce the orientation of the crystal grains with the b-axes perpendicular to the substrate surface. The final TS-1 film is applied to a multiphase membrane reactor as a catalytic membrane, which possesses a competitive reaction rate and an extremely high selectivity for the alcohol product in the oxyfunctionalization of n-hexane in the presence of hydrogen peroxide. The finding is expected to help produce other oriented zeolite films that will extend the application of zeolite films and membranes in the advanced materials and microreactors.

Original languageEnglish (US)
Pages (from-to)3261-3265
Number of pages5
JournalAdvanced Materials
Volume18
Issue number24
DOIs
StatePublished - Dec 18 2006

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Chitosan
Membranes
Substrates
Zeolites
Hexane
Alcohols
Hexanols
Hydroxylation
Catalyst selectivity
Hydrogen peroxide
Crystal orientation
Hydrogen Peroxide
Reaction rates
titanium silicide
Oxidation
Crystals
n-hexane

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Synthesis of b-oriented TS-1 films on chitosan-modified α-Al 2O3 substrates. / Wang, Xiaodong; Zhang, Baoquan; Liu, Xiufeng; Lin, Jerry.

In: Advanced Materials, Vol. 18, No. 24, 18.12.2006, p. 3261-3265.

Research output: Contribution to journalArticle

Wang, Xiaodong ; Zhang, Baoquan ; Liu, Xiufeng ; Lin, Jerry. / Synthesis of b-oriented TS-1 films on chitosan-modified α-Al 2O3 substrates. In: Advanced Materials. 2006 ; Vol. 18, No. 24. pp. 3261-3265.
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