广东石油化工学院学报2026，Vol.36Issue(1)：26-32,7.DOI:10.26962/j.cnki.1991.2026.0005
椰壳炭负载FeS复合物高效吸附钍(Ⅳ)的性能
The Efficient Adsorption Performance for Thorium(Ⅳ)by Coconut Shell Carbon Loaded FeS Composite
摘要
Abstract
Nano coconut shells activated carbon were selected as support materials,and nano FeS/CSC adsorbents were prepared by impregnation method for the adsorption testing of thorium(IV).The adsorbents were characterized and analyzed by SEM,IR,XRD and BET technology.The results indicated that thorium(IV)ions in aqueous solution was adsorbed by nano 6%-FeS/CSC adsorbent effectively,when the removal rate was high as 96.99%and the unit adsorption capacity was high as 116.39 mg/g under the optimized conditions.The characterization analysis of the adsorbent displayed that the nano FeS particles are uniformly distributed on the surface of coconut shell carbon with the large specific surface area.Thorium(IV)were prone to coordinate bonding with the surface nano FeS particles,and the microstructure of the micro surface was unchanged after adsorption.This adsorption process was more suitable to be described using the Freundlich isotherm adsorption model,and the adsorption rate was conformed to the second order kinetic model.The obvious chemical adsorption characteristics was shown.Thermodynamic experiments elucidated that this behavior showed the feature as endothermic,entropy increasing,and spontaneous.关键词
椰壳炭/吸附/FeS/钍(Ⅳ)吸附/功能吸附剂Key words
coconut shell carbon/adsorbent/FeS/Thorium(Ⅳ)adsorption/functional adsorbent分类
化学化工引用本文复制引用
龙威,张增杰,朱永祥..椰壳炭负载FeS复合物高效吸附钍(Ⅳ)的性能[J].广东石油化工学院学报,2026,36(1):26-32,7.基金项目
广东石油化工学院大学生创新训练项目校级培育项目(71013407220) （71013407220）
