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

doi:10.1016/j.jhazmat.2018.10.035

CORC > 合肥物质科学研究院 > 中国科学院合肥物质科学研究院 > 中科院等离子体物理研究所

	Influence of carbonate on sequestration of U(VI) on perovskite
	Lu, Songhua 1,4; Zhu, Kairuo 1; Hayat, Tasawar 5; Alharbi, Njud S.2; Chen, Changlun 1,2,5; Song, Gang 3; Chen, Diyun 3; Sun, Yubing 4
刊名	JOURNAL OF HAZARDOUS MATERIALS
	2019-02-15
卷号	364 页码:100-107
关键词	Perovskite EXAFS U(VI) Sequestration Carbonate
ISSN号	0304-3894
DOI	10.1016/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.
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关键词	GRAPHENE OXIDE NANOSHEETS ; ZERO-VALENT IRON ; COMPETITIVE SORPTION ; SIMULTANEOUS REMOVAL ; TITANATE NANOTUBES ; BACILLUS-SUBTILIS ; CORE-SHELL ; ADSORPTION ; REDUCTION ; URANIUM
WOS研究方向	Engineering ; Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000452926500012
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
内容类型	期刊论文
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.Chinese Acad Sci, Inst Plasma Phys, Key Lab Photovolta & Energy Conversat, POB 1126, Hefei 230031, Anhui, Peoples R China 2.King Abdulaziz Univ, Fac Sci, Dept Biol Sci, Jeddah, Saudi Arabia 3.Guangdong Prov Key Lab Radionuclides Pollut Contr, Guangzhou 510006, Guangdong, Peoples R China 4.North China Elect Power Univ, Coll Environm Sci & Engn, Beijing 102206, Peoples R China 5.King Abdulaziz Univ, Fac Sci, Dept Math, NAAM Res Grp, Jeddah 21589, Saudi Arabia
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.