Synthesis and characterization of a new mesoporous molecular sieve

Abstract

Abstract In this presentation, a new mesoporous molecular sieve (MPL-1) was successfully synthesized from the feedstock of pseudobeohmite (72.6wt% Al 2 O 3 ), orthophosphoric acid (85wt% H 3 PO 4 ) and silica sol (30wt% SiO 2 ) under the hydrothermal process with an organic compound as template reagent. The structures and properties of as-synthesized molecular sieve were investigated by XRD and liquid nitrogen physical absorption characterization methods. The experimental results show that the molecular sieve exhibits larger pore diameters, surface area and pore volume. The hetero-atoms such as Ti, Fe and Zn may be incorporated in the framework of as-synthesized molecular sieve to produce derivatives of the mesoporous materials such as Al-Si-Ti-P, Al-Si-Fe-P, and Al-Si-Zn-P molecular sieves which have higher thermal and hydrothermal stability.