Electrochemical deposition of uranium oxide with an electrocatalytically active electrode using double potential step technique  

作　　者：Jie Huang Zhirong Liu Dejuan Huang Tianxiang Jin Yong Qian 

机构地区：[1]Jiangxi Province Key Laboratory of Polymer Micro/Nano Manufacturing and Devices,East China University of Technology,Nanchang 330013,China [2]State Key Laboratory of Nuclear Resources and Environment,East China University of Technology,Nanchang 330013,China

出　　处：《Chinese Chemical Letters》2022年第8期3762-3766,共5页中国化学快报（英文版）

基　　金：the financial support of the National Natural Science Foundation of China(Nos.41361088 and41867063)。

摘　　要：The development of effective uranium-removal techniques is of great significance to the environment and human health.In this work,a double potential step technique(DPST)was applied to remove U(VI)from uranium-containing wastewater using a carbon felt electrode modified by graphene oxide/phytic acid composite(GO-PA@CF).The application of DPST can inhibit water splitting and prevent GO-PA from adsorbing other interfering ions in wastewater.The GO-PA composite can effectively accelerate the electrochemical reduction rate of U(VI),which significantly improved the electrochemical deposition rate of uranium oxide.As a result,the maximum removal efficiency and maximum removal capacity of GOPA@CF electrode reached 98.7%and 1149.3 mg/g,respectively.The removal efficiency remained 97.2%after five cycles of reuse.Moreover,the removal efficiency of GO-PA@CF electrode can reach more than 70%in simulated wastewater.

关 键 词：Electrochemical deposition URANIUM Double potential step technique Graphene oxide NANOCOMPOSITES 

分 类 号：O643.36[理学—物理化学] O646[理学—化学] X703[环境科学与工程—环境工程]