期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2016
卷号：7
期号：3
页码：899-906
出版社：University of Mohammed Premier Oujda
摘要：SAPO-34 being a microporous crystalline material; its morphology is greatly influenced by synthetic parameters. The aim of present investigation is to employ SAPO-34 synthesized under varying synthetic conditions to study its effect for Biginelli reaction. SAPO-34 molecular sieve was successfully synthesized in presence of four different organic templates (DEA, TEA, TEAOH and morpholine) and two different silica sources (colloidal silica and fumed silica). To achieve the SAPO-34 phase in its purest form, the template concentration was optimized by eliminating the competing phases. Synthesized catalyst samples were characterized by XRD, SEM, TG, FTIR and Total acidity analysis. The DEA and morpholine templated SAPO- 34 samples (colloidal silica as silica source) were found to be more acidic and hence were tested for synthesis of Biginelli condensation products such as dihyropyrimidinons. The reaction is studied further in terms of catalyst concentration and solvent effect.
