文献类型：期刊文献

英文题名：In situ electrochemical synthesis of Ni-Mg-Al-LDHs for the treatment of simulated strontium-containing liquid radioactive waste from nuclear power plants

作者：Huang, Xin[1];Yu, Xian[1];Cao, Wei[1];Wang, Xian[1];Wang, Shifan[1];Huang, Guangtuan[1]

机构：[1]East China Univ Sci & Technol, Sch Resources & Environm Engn, Natl Engn Lab Ind Wastewater Treatment, State Environm Protect Key Lab Environm Risk Asses, Shanghai 200237, Peoples R China

年份：2024

卷号：333

期号：1

起止页码：411

外文期刊名：JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY

收录：;EI(收录号：20234715096799);WOS:【SCI-EXPANDED(收录号:WOS:001142404100001)】；

基金：The authors sincerely appreciate the help of the analysts from Center of Analysis and Test, Laboratory for Resource and Environmental Education in East China University of Science and Technology.

语种：英文

外文关键词：Ternary LDHs; Liquid radioactive waste; Strontium; Adsorption mechanism

摘要：In this study, in situ electrochemical synthesis of Ni-Mg-Al-LDHs for the treatment of simulated strontium-containing liquid radioactive waste (LRW) from nuclear power plants. The optimal reaction conditions were obtained by single-factor experiments: initial pH of 12, Mg electrode current density (JMg) of 12.5 mA/cm2, Ni-Mg-Al metal molar ratio (RNi_Mg-Al) of 3:1:1 and reaction temperature (T) of 30 degrees C. The removal rate of Sr2+ can reach up to 99.65%. The synthetic precipitate was characterized by XRD, FESEM-EDS and FT-IR under optimal reaction conditions. The XRD pattern showed that the main component of the precipitate is Ni-Mg-Al-LDHs. The precipitate was characterized by FESEM to have distinct layered double hydroxides (LDHs) structure. The absorption peaks of O-H bonds, C-O bonds, and M-O-M (M is Ni, Mg and Al) bonds appeared in IR spectrum. The method of in situ electrochemical synthesis of Ni-Mg-Al-LDHs has promising applications in the treatment of LRW.