Diffusion mechanism of cesium, cobalt and cadmium ions in the particles of tin vanadate as a cation exchanger

Scientific Research and Essays

S. A. Shady¹ 

关键词:  ;    Diffusion mechanism;    cesium;    cobalt;    cadmium;    tin vanadate;    cation exchanger.;   

DOI  :  10.5897/SRE12.243

学科分类：社会科学、人文和艺术（综合）

来源: Academic Journals

【 摘 要 】

The mechanism of diffusion of Cs+, Co2+, and Cd2+ions in the H-form of tin-vanadate as cation exchanger was studied as a function of particle size, concentration of the exchanging ions, reaction temperature, and drying temperature. The exchange rate was controlled by a particle diffusion mechanism as a limited batch technique and is confirmed from straight lines of B versus 1/r2plots. The values of diffusion coefficients, activation energy, and entropy of activation were calculated and their significance was discussed. The data obtained were compared with those reported for other inorganic ion exchangers.

【 授权许可】

CC BY