Porous materials viaegg-constituents templating

Abstract

The possibility to prepare porous materials with controlled composition and porous structure using environmentally benign, readily available and cheap templates such as egg-derived scaffolds was explored. Different parts of the egg were used for the preparation of: (i) porous disks and beads of SiO₂ and SiO₂–Al₂O₃; (ii) micro-/macroporous interwoven hollow tubes; (iii) hybrid eggshell membrane/zeolite structures; and (iv) zeolite/calcite composite. The synthesis conditions and the properties of obtained materials are discussed. The materials were characterized by XRD, SEM, N₂ adsorption measurements and chemical analysis.