Uniform Nanozeolite Microspheres with Large Secondary Pore Architecture

Various nanozeolites microspheres with uniform diameters from 3 to 8 μm were prepared by a polymerization-induced colloid aggregation method. The obtained nanozeolite microspheres possess a regularly spherical morphology and a large and adjustable secondary pore architecture that are believed to be useful in the separation of biomolecules. Moreover, the nanozeolite microspheres well retain the properties of the original colloidal nanozeolites and exhibit similar advantages to those of zeolite nanoparticles in protein adsorption. More importantly, the large secondary pore size (15−70 nm) of nanozeolite microspheres has been proven to have little limiting effect on the adsorption rate of various proteins, and a saturated adsorption is achieved even within 10 min, which may also facilitate microspheres' applications in catalysis involving diffusion limitations.