期刊
APPLIED RADIATION AND ISOTOPES
卷 164, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.apradiso.2020.109278
关键词
Activated carbon; Epoxy composite; Eu152+154 radionuclide sorption; Kinetic models; Equilibrium models
类别
资金
- Hot Lab. Center, Atomic Energy Authority
Adsorption of radioactive europium from aqueous solution was achieved using activated carbon - epoxy composite. The preparation of activated carbon - epoxy composite was reported using gamma radiation. The ratio of the activated carbon: epoxy was 50:50 Wt %. Irradiation of the mixture by the dose 20 KGy in gamma cell was performed. The physicochemical properties of the prepared composite were investigated by using different analytical techniques. The obtained results were analyzed using different kinetic models. The sorption kinetic process fitted with the pseudo-second-order model preferably than the pseudo-first-order model. The sorption mechanism was achieved by multi-diffusion steps comprising both film and intra-particle diffusion. The monolayer capacity of the composite was 297.62 mg/g. The thermodynamic parameters were studied. The negative value of Delta G degrees and the positive value of Delta H degrees revealed the spontaneous and endothermic nature of the sorption process.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据