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Influence of carbonate on sequestration of U(VI) on perovskite

文献类型：期刊论文

作者Lu, Songhua2,3; Zhu, Kairuo3; Hayat, Tasawar4; Alharbi, Njud S.1; Chen, Changlun1,3,4; Song, Gang5; Chen, Diyun5; Sun, Yubing2
刊名JOURNAL OF HAZARDOUS MATERIALS
出版日期2019-02-15
卷号364页码:100-107
关键词Perovskite EXAFS U(VI) Sequestration Carbonate
ISSN号0304-3894
DOI10.1016/j.jhazmat.2018.10.035
通讯作者Sun, Yubing(sunyb@ipp.ac.cn)
英文摘要Cubic perovskite (CaTiO3) was successfully synthesized by a facile solvothermal method and was utilized to sequestrate U(VI) from aqueous solutions. The batch experiments revealed that carbonate inhibited U(VI) sequestration at pH > 6.0 due to the formation of uranyl-carbonate complexes. The maximum sequestration capacity of U(VI) on perovskite was 119.3 mg/g (pH 5.5). The sequestration mechanism of U(VI) on perovskite were investigated by XPS and EXAFS techniques. According to XPS analysis, the presence of U(IV) and U(VI) oxidation states revealed the photocatalytic reduction of U(VI) by perovskite under UV-vis irradiation. In addition, photocatalytic reduction performance significantly decreased in the presence of carbonate. Based on EXAFS analysis, the occurrence of U-Ti and U-U shells revealed the inner-sphere surface complexation and reductive precipitation of U(VI) on perovskite. These findings herein are crucial for the application of perovskite-based composites in the decontamination of U(VI) in aquatic environmental cleanup.
WOS关键词GRAPHENE OXIDE NANOSHEETS ; ZERO-VALENT IRON ; COMPETITIVE SORPTION ; SIMULTANEOUS REMOVAL ; TITANATE NANOTUBES ; BACILLUS-SUBTILIS ; CORE-SHELL ; ADSORPTION ; REDUCTION ; URANIUM
资助项目Natural Science Foundation of China for Outstanding Young Foundation[21822602] ; Research Fund Program of Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources[GZDX2017K002]
WOS研究方向Engineering ; Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000452926500012
出版者ELSEVIER SCIENCE BV
资助机构Natural Science Foundation of China for Outstanding Young Foundation ; Natural Science Foundation of China for Outstanding Young Foundation ; Natural Science Foundation of China for Outstanding Young Foundation ; Natural Science Foundation of China for Outstanding Young Foundation ; Natural Science Foundation of China for Outstanding Young Foundation ; Natural Science Foundation of China for Outstanding Young Foundation ; Natural Science Foundation of China for Outstanding Young Foundation ; Natural Science Foundation of China for Outstanding Young Foundation ; Research Fund Program of Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources ; Research Fund Program of Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources ; Research Fund Program of Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources ; Research Fund Program of Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources ; Research Fund Program of Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources ; Research Fund Program of Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources ; Research Fund Program of Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources ; Research Fund Program of Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources ; Natural Science Foundation of China for Outstanding Young Foundation ; Natural Science Foundation of China for Outstanding Young Foundation ; Natural Science Foundation of China for Outstanding Young Foundation ; Natural Science Foundation of China for Outstanding Young Foundation ; Natural Science Foundation of China for Outstanding Young Foundation ; Natural Science Foundation of China for Outstanding Young Foundation ; Natural Science Foundation of China for Outstanding Young Foundation ; Natural Science Foundation of China for Outstanding Young Foundation ; Research Fund Program of Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources ; Research Fund Program of Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources ; Research Fund Program of Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources ; Research Fund Program of Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources ; Research Fund Program of Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources ; Research Fund Program of Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources ; Research Fund Program of Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources ; Research Fund Program of Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/40735]  
专题合肥物质科学研究院_中科院等离子体物理研究所
通讯作者Sun, Yubing
作者单位1.King Abdulaziz Univ, Fac Sci, Dept Biol Sci, Jeddah, Saudi Arabia
2.North China Elect Power Univ, Coll Environm Sci & Engn, Beijing 102206, Peoples R China
3.Chinese Acad Sci, Inst Plasma Phys, Key Lab Photovolta & Energy Conversat, POB 1126, Hefei 230031, Anhui, Peoples R China
4.King Abdulaziz Univ, Fac Sci, Dept Math, NAAM Res Grp, Jeddah 21589, Saudi Arabia
5.Guangdong Prov Key Lab Radionuclides Pollut Contr, Guangzhou 510006, Guangdong, Peoples R China
推荐引用方式
GB/T 7714		 Lu, Songhua,Zhu, Kairuo,Hayat, Tasawar,et al. Influence of carbonate on sequestration of U(VI) on perovskite[J]. JOURNAL OF HAZARDOUS MATERIALS,2019,364:100-107.
APA Lu, Songhua.,Zhu, Kairuo.,Hayat, Tasawar.,Alharbi, Njud S..,Chen, Changlun.,...&Sun, Yubing.(2019).Influence of carbonate on sequestration of U(VI) on perovskite.JOURNAL OF HAZARDOUS MATERIALS,364,100-107.
MLA Lu, Songhua,et al."Influence of carbonate on sequestration of U(VI) on perovskite".JOURNAL OF HAZARDOUS MATERIALS 364(2019):100-107.

入库方式： OAI收割

来源：合肥物质科学研究院

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