A New Microporous Zinc Silicate

摘要

A new microporous zinc silicate ZS-1 with Si to Zn mole ratio in the range 5.2 to 11.4 have been synthesized under hydrothermal condition using dibutyl amine as structure directing agent (SDA) in the presence of H_3PO_4 promoter. SDA can be removed by acid / ethanol extraction and the material show microporosity in N_2 sorption measurement. This material show very strong surface acidity and practically no loss of zinc on heating the acid extracted sample at 773 K for 6h.