Mesoporous aluminosilicate molecular sieves having 'tubules- within- a- tubule' hierarchical order morphology and the preparation thereof

摘要

The present invention relates to a method for synthesizing mesoporous aluminosilicate and pure silica molecular sieves of new micro- tubular morphology. The wall of the microtubules contains coaxial cylindrical pores of nanometer size. The diameter of the hollow tubular is adjustable from 0.1 to 3 micrometer by varying the reaction conditions such as the surfactant/water ratio, the addition of salts or cosurfactants, the surfactants with different carbon chain length and the silicon/aluminum ratio.