典型文献
Uranium sorption on oxyhydroxide minerals by surface complexation and precipitation
文献摘要：
During the chemical weathering of the uranium mill tailings,released uranium could be immobilized by the newly formed secondary minerals such as oxyhydroxides.A deeper understanding of the inter-action between uranium and common oxyhydroxides under environmental conditions is necessary.In this work,uranium sorption behaviors on Al-,Mn-and Fe-oxyhydroxide minerals(boehmite,manganite,goethite,and lepidocrocite)were investigated by batch experiments.Results showed that the uranium sorption on Al-oxyhydroxide behaved significantly differently from the other three minerals.The sorption edge of the Mn-and Fe-oxyhydroxides located around pH 5,while the sorption edge of boehmite shifted about 1.5 pH unit to near neutral.The sorption isotherms of uranium on manganite,goethite and lepi-docrocite at pH 5.0 could be well fitted by the Langmuir model.Instead of surface complexation,sorption on boehmite happened mainly by uranium-bearing carbonates and hydroxides precipitation as illustrated by the characterization results.Both carbonate and phosphate strongly affected the uranium sorption behavior.The removal efficiency of uranium by boehmite exceeded 98％after three sorption-desorption cycles,indicating it may be a potential material for uranium removal and recovery.
文献关键词：
中图分类号：
作者姓名：
Jingyi Wang;Wanqiang Zhou;Yanlin Shi;Yao Li;Dongfan Xian;Ning Guo;Chunli Liu
作者机构：
Beijing National Laboratory for Molecular Sciences,Fundamental Science Laboratory on Radiochemistry and Radiation Chemistry,College of Chemistry and Molecular Engineering,Peking University,Beijing 100871,China
文献出处：
引用格式：
[1]Jingyi Wang;Wanqiang Zhou;Yanlin Shi;Yao Li;Dongfan Xian;Ning Guo;Chunli Liu-.Uranium sorption on oxyhydroxide minerals by surface complexation and precipitation)[J].中国化学快报（英文版）,2022(07):3461-3467
A类：
oxyhydroxide,lepidocrocite,lepi,docrocite
B类：
Uranium,minerals,by,surface,complexation,precipitation,During,chemical,weathering,uranium,mill,tailings,released,could,immobilized,newly,formed,secondary,such,oxyhydroxides,deeper,understanding,inter,action,between,common,environmental,conditions,necessary,this,work,behaviors,Mn,boehmite,manganite,goethite,were,investigated,batch,experiments,Results,showed,that,behaved,significantly,differently,from,three,edge,located,around,while,shifted,about,unit,near,neutral,isotherms,well,fitted,Langmuir,model,Instead,happened,mainly,bearing,carbonates,illustrated,characterization,results,Both,phosphate,strongly,affected,removal,efficiency,exceeded,after,desorption,cycles,indicating,may,potential,material,recovery
AB值：
0.474162
相似文献
机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
