原子能科学技术Issue(1)：39-45,7.DOI:10.7538/yzk.2016.50.01.0039
Fe（OH）3胶体对铀的吸附行为
Adsorption Behavior of Uranium on Fe (OH)3 Colloid
摘要
Abstract
In order to study the adsorption of uranium on Fe(OH)3 colloid in situ leac‐hing of uranium ,the Fe(OH)3 colloid was prepared in absolute ethanol ,and the adsorp‐tion performance of uranium on Fe(OH)3 colloid was detected .The effects of pH value , initial uranium concentration ,and the contact time were analyzed .As for the adsorption dynamics ,the pseudo‐first‐order ,composite‐second‐order and Elovich dynamic models were comparatively calculated and discussed .The results show that the Elovich dynamic model is fit to describe the adsorption of uranium on Fe (OH )3 colloids .As for the adsorption thermodynamics ,the Freundlich and Langmuir adsorption isotherm models were applied to analyze and fit the experimental equilibrium data .It is found that the equilibrium data agree well with the Freundlich model .In conclusion ,the adsorption of uranium on Fe(OH)3 colloid belongs to the single layer physical adsorption of uneven surface .The laser particle size and SEM analysis results reveal that the Fe (OH )3 colloids show a good adsorption performance ,and the surface adsorption takes preced‐ence in the adsorption process .关键词
Fe(OH)3胶体/铀/吸附/动力学/等温线Key words
Fe(OH)3 colloid/uranium/adsorption/kinetics/isotherm分类
矿业与冶金引用本文复制引用
熊骁,王清良,李乾,胡鄂明,冯志钢,李中,王星星..Fe（OH）3胶体对铀的吸附行为[J].原子能科学技术,2016,(1):39-45,7.基金项目
国家自然科学基金资助项目 （）
