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In-situ preparation of functionalized molecular sieve material and a methodology to remove template.

ABSTRACT: A series of diaminosilane-functionalized silicoaluminophosphate molecular sieve (SAPO-37) was prepared by in-situ synthesis, and a novel method was developed for the selective removal of structure directing agent (SDA)/template from the functionalized SAPO-37.The complete removal of the SDA was evident according to FT-IR, TGA, (13)C MAS-NMR and elemental analysis. The developed method was found to be efficient for removal of template from microporous molecular sieve viz., SAPO-37 and can be applied for other microporous molecular sieves such as SAPO-5, SAPO-40, etc. The powder XRD pattern of the template-removed samples showed a highly crystalline SAPO-37 phase. Argentometric titration revealed that more than 90% of diamine functionality exposed on the surface was accessible for catalytic applications. The resultant materials showed promising activity for ring opening of epoxide with aniline to yield ?-amino-alcohol.

SUBMITTER: Yadav R

PROVIDER: S-EPMC4785354 | biostudies-literature | 2016 Mar

REPOSITORIES: biostudies-literature

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In-situ preparation of functionalized molecular sieve material and a methodology to remove template.

Yadav Rekha R Ahmed Maqsood M Singh Arvind Kumar AK Sakthivel Ayyamperumal A

Scientific reports 20160310

A series of diaminosilane-functionalized silicoaluminophosphate molecular sieve (SAPO-37) was prepared by in-situ synthesis, and a novel method was developed for the selective removal of structure directing agent (SDA)/template from the functionalized SAPO-37.The complete removal of the SDA was evident according to FT-IR, TGA, (13)C MAS-NMR and elemental analysis. The developed method was found to be efficient for removal of template from microporous molecular sieve viz., SAPO-37 and can be appl ...[more]

PMID: 26960707

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