Polysaccharide biopolymers modified with titanium or nickel nanoparticles for removal of radionuclides from aqueous solutions

• DOI: 10.1007/s10967-015-4414-9
• Publication Date: 2015-09-09T14:40:17Z
• Authors: Jana Pospěchová; Vojtěch Brynych; Václav Štengl; Jakub Tolasz; Jens Hagen Langecker; Mária Bubeníková; Lórant Szatmáry
• Keywords: Nanomaterials

New composite nanomaterials of cellulose, chitin, and chitosan modified with titanium or nickel nanoparticles were developed and tested for removal of 137Cs, 85Sr, 60Co, and 152+154Eu from aqueous solutions. The composite nanomaterials were characterized by X-ray diffraction, high-resolution scanning electron microscopy, infrared spectroscopy, and nitrogen adsorption–desorption isotherms. The influencing factors of metal adsorption were investigated, including contact time, pH, and metal ions concentration. Freundlich and Langmuir models were applied to fit the Sr(II) equilibrium adsorption data. All Ti modified biopolymers are promising adsorbents for 85Sr, 60Co, and 152+154Eu removal from radioactive wastewater.