Synthesis of Porous γ-AlOOH Nanostructures by Oxidation of Al/AlN Composition in Poly(Sodium Acrylate) Aqueous Solution

摘要

In the present study, the process of aluminum nitride composition in poly(sodium acrylate) aqueous solution was studied. The final products of the reaction are boehmite (y-AlOOH) porous nanoparticles with overall particle size 50-200 nm covered with crumpled nanosheets with 2-5 nm width and up to 50 nm overall size. Carrying the oxidation process in poly(sodium acrylate) aqueous solution allows to change the mechanism of boehmite nanosheets formation in contrast to water. That can be ascribed to the chelating ability of the polymer carboxyl groups towards Al~(3+) ions and changes in hydrolysis rate of aluminum aqua complexes. Synthesized y-AlOOH nanostructures possess a high BET specific surface area and contain micro- and mesopores. The present results of the study can be used for further development of new sorbents, drug-delivery systems and different antimicrobial materials.