Chế tạo và khảo sát khả năng hấp phụ ion Cr(VI) của vật liệu chitosan xốp

Abstract

     Chitosan obtained from shrimp shells and SiO₂ nanoparticles obtained from rice husk ash were used to synthesize chitosan/SiO₂ composites. Porous chitosan was obtained by removing SiO₂ in the chitosan/SiO₂ composite. The Cr(VI) adsorption capacity of porous chitosan depends on the rate of chitosan/SiO₂ used to make materials, temperature and pH. The Cr(VI) adsorption capacity of the material is determined to be about 5.99 mg/g.

Keywords: Chitosan, nanocomposite, nano SiO₂, Porous, heavy metal.