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Adsorption of 141 Ce(III), 160 Tb(III), and 169 Yb(III) on the Synthesized Inorganic Ion Exchanger, Zirconium Titanium Phosphate
Radiochemistry ( IF 0.9 ) Pub Date : 2020-07-08 , DOI: 10.1134/s1066362220030066 F. H. El-Sweify , A. A. Abdel-Fattah , M. A. Ghamry , S. M. Aly , M. F. El-Shahat
中文翻译:
合成无机离子交换剂磷酸钛锆对141 Ce(III),160 Tb(III)和169 Yb(III)的吸附
更新日期:2020-07-08
Radiochemistry ( IF 0.9 ) Pub Date : 2020-07-08 , DOI: 10.1134/s1066362220030066 F. H. El-Sweify , A. A. Abdel-Fattah , M. A. Ghamry , S. M. Aly , M. F. El-Shahat
Abstract
Samples of zirconium titanium phosphate inorganic ion exchangers with different Zr : Ti molar ratios were synthesized. The samples were characterized using FT-IR spectroscopy, X-ray diffraction, scanning electron microscopy, and pore size analysis. The adsorption behavior of lanthanide isotopes 141Ce(III), 160Tb(III), and 169Yb(III) was studied in batch experiments. The influence of the V/m ratio (mL g–1), solution pH, contact time, particle size, metal ion concentration, and temperature on the adsorption kinetics was studied. The changes in the Gibbs free energy, enthalpy, and entropy were calculated. The adsorption isotherms and kinetics were analyzed using different models. The adsorption was found to follow the Langmuir isotherm better than the Freundlich isotherm. The pseudo-second-order kinetic model fits the adsorption data.中文翻译:
合成无机离子交换剂磷酸钛锆对141 Ce(III),160 Tb(III)和169 Yb(III)的吸附