Magnetically separable h-Fe3O4@phosphate/polydopamine nanospheres for U(VI) removal from wastewater and soil

doi:10.1016/j.jece.2022.108592

	Magnetically separable h-Fe3O4@phosphate/polydopamine nanospheres for U(VI) removal from wastewater and soil
	Zhang, Jianfeng 1,2; Wang, De 1,2; Cao, Ruya 1,2; Sun, Fuwei 1,2; Li, Jiaxing 1,2,3
刊名	JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
	2022-12-01
卷号	10
关键词	Polydopamine Uranium Adsorption Phosphate Soil remediation
ISSN号	2213-2929
DOI	10.1016/j.jece.2022.108592
通讯作者	Li, Jiaxing(lijx@ipp.ac.cn)
英文摘要	In this work, a magnetic h-Fe3O4 @phos-PDA nanocomposite composed of ferroferric oxide hollow nanosphere and phosphate-modified polydopamine shell was successfully prepared by a facile one-step method. The h-Fe3O4 @phos-PDA nanocomposite has excellent adsorption properties for U (VI) under the action of phosphate and amine functional groups. The maximum adsorption capacity of h-Fe3O4 @phos-PDA for U(VI) in pH= 5 aqueous solution reached 526.35 mg/g at 298 K, and the adsorption process conformed to the Langmuir isotherm model. The analysis of kinetic adsorption data educed that the adsorption process followed the pseudo-second-order model and reached equilibrium in just 16 min. XPS analysis indicated that phosphate and amine functional groups play a vital role in the complexation between the phos-PDA shell and U (VI). In addition, actual soil remediation experiments indicated that the h-Fe3O4 @phos-PDA nanocomposite could reduce the radiation in-tensity of alpha-ray in uranium-contaminated soil by about 82.3%, demonstrating its great engineering application potential.
资助项目	National Key Research and Development Program of China ; National Natural Science Foundation of China ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; [2020YFC1806602] ; [21876178]
WOS关键词	EFFICIENT REMOVAL ; URANIUM(VI) ; ADSORPTION ; COMPOSITE ; XPS
WOS研究方向	Engineering
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000869004800006
资助机构	National Key Research and Development Program of China ; National Natural Science Foundation of China ; Priority Academic Program Development of Jiangsu Higher Education Institutions
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/129442]
专题	中国科学院合肥物质科学研究院
通讯作者	Li, Jiaxing
作者单位	1.Chinese Acad Sci, Inst Plasma Phys, Hefei Inst Phys Sci, CAS Key Lab Photovolta & Energy Conservat Mat, Hefei 230031, Anhui, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China 3.Soochow Univ, Collaborat Innovat Ctr Radiat Med Jiangsu Higher E, Suzhou 215123, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Jianfeng,Wang, De,Cao, Ruya,et al. Magnetically separable h-Fe3O4@phosphate/polydopamine nanospheres for U(VI) removal from wastewater and soil[J]. JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING,2022,10.
APA	Zhang, Jianfeng,Wang, De,Cao, Ruya,Sun, Fuwei,&Li, Jiaxing.(2022).Magnetically separable h-Fe3O4@phosphate/polydopamine nanospheres for U(VI) removal from wastewater and soil.JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING,10.
MLA	Zhang, Jianfeng,et al."Magnetically separable h-Fe3O4@phosphate/polydopamine nanospheres for U(VI) removal from wastewater and soil".JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING 10(2022).