Spectroscopic and theoretical calculation insight into interaction mechanism between U(VI) and phospholipid under carbonate environment

doi:10.1016/j.molliq.2020.112852

	Spectroscopic and theoretical calculation insight into interaction mechanism between U(VI) and phospholipid under carbonate environment
	Xiang, Shuhong 2,3; Nie, Xiaoqin 1,2; Dong, Faqin 1,2; Cheng, Wencai 2; Liu, Mingxue 1,2; Ding, Congcong 2; Bian, Liang 1; Sun, Shiyong 1; Li, Hailong 1
刊名	JOURNAL OF MOLECULAR LIQUIDS
	2020-05-01
卷号	305
关键词	Mechanism Carbonate solution Phospholipid Uranium removal
ISSN号	0167-7322
DOI	10.1016/j.molliq.2020.112852
通讯作者	Nie, Xiaoqin(xiaoqin_nie@163.com) ; Dong, Faqin(fqdong2004@163.com)
英文摘要	The adsorption features and mechanism of phospholipid (the main components of cytoderm of gram-negative bacterium) to remove U(VI) in carbonate solution have been explored in this study. The utilized phospholipid was characterized by SEM-EDS, FT-IR, XRD, and XPS. Macroscopic experiments demonstrated that the removal capacity of phospholipid was dominated by the concentration of carbonate and the maximum capacity can reach as high as 207 mg/g at optimized condition. Removal efficiency of U(VI) by phospholipid up to 94.83% at pH 5.0, while 6.04% at pH 10.0 could be attributed to formation of massive micelles under the condition of high carbonate concentration according to the phenomenon of Tyndall Effect (carbonate concentration represented by pH). XRD and FT-IR results indicated the main U(VI) species adsorbed on phospholipid was UO2CO3. Both XPS and FT-IR results showed the chemical environment of P element had been changed after adsorbing U(VI), indicating the main adsorption sites for U(VI) may be phosphate groups. Besides, simulation results of simplified adsorption model were investigated as well. Calculation results exhibited phospholipid adsorbing U(VI) through electrostatic force, and the adsorption process may involve in electron transfer. (C) 2020 Elsevier B.V. All rights reserved.
资助项目	National Natural Science Foundation of China[41877323] ; National Natural Science Foundation of China[21707110] ; National Natural Science Foundation of China[41703118] ; China Postdoctoral Science Foundation[2017M612991] ; China Postdoctoral Science Foundation[2018T110994] ; Longshan Academic Talent Research Supporting Program of SWUST[18LZX322] ; Longshan Academic Talent Research Supporting Program of SWUST[17LZX524] ; Longshan Academic Talent Research Supporting Program of SWUST[18LZX521]
WOS关键词	URANIUM ; SEQUESTRATION ; OXIDATION ; BACTERIA ; DENSITY ; ENERGY ; STATE
WOS研究方向	Chemistry ; Physics
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000525306200022
资助机构	National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; Longshan Academic Talent Research Supporting Program of SWUST
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/103719]
专题	中国科学院合肥物质科学研究院
通讯作者	Nie, Xiaoqin; Dong, Faqin
作者单位	1.Southwest Univ Sci & Technol, Key Lab Solid Waste Treatment & Resource Recycle, Minist Educ, Mianyang 621010, Sichuan, Peoples R China 2.Southwest Univ Sci & Technol, Natl Collaborat Innovat Ctr Nucl Waste & Environm, Mianyang 621010, Sichuan, Peoples R China 3.Chinese Acad Sci, Ctr Environm & Energy Nanomat, Inst Solid State Phys, Key Lab Mat Phys,Anhui Key Lab Nanomat & Nanostru, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Xiang, Shuhong,Nie, Xiaoqin,Dong, Faqin,et al. Spectroscopic and theoretical calculation insight into interaction mechanism between U(VI) and phospholipid under carbonate environment[J]. JOURNAL OF MOLECULAR LIQUIDS,2020,305.
APA	Xiang, Shuhong.,Nie, Xiaoqin.,Dong, Faqin.,Cheng, Wencai.,Liu, Mingxue.,...&Li, Hailong.(2020).Spectroscopic and theoretical calculation insight into interaction mechanism between U(VI) and phospholipid under carbonate environment.JOURNAL OF MOLECULAR LIQUIDS,305.
MLA	Xiang, Shuhong,et al."Spectroscopic and theoretical calculation insight into interaction mechanism between U(VI) and phospholipid under carbonate environment".JOURNAL OF MOLECULAR LIQUIDS 305(2020).