Three dimensional flower-like magnetic polyethyleneimine@MoS2 composites for highly efficient removal of Cr(VI) and Pb(II) ions

doi:10.1016/j.jcis.2020.07.065

	Three dimensional flower-like magnetic polyethyleneimine@MoS2 composites for highly efficient removal of Cr(VI) and Pb(II) ions
	Sun, Chengwei 2,3,4; Song, Gang 1; Chen, Lili 3,4; Ren, Xuemei 4; Chen, Changlun 2,4
刊名	JOURNAL OF COLLOID AND INTERFACE SCIENCE
	2020-11-15
卷号	580
关键词	Fe3O4 core MoS2 Cr(VI) Pb(II) Adsorption
ISSN号	0021-9797
DOI	10.1016/j.jcis.2020.07.065
通讯作者	Chen, Changlun(clchen@ipp.ac.cn)
英文摘要	Magnetic Fe3O4 nanoparticles were coated by polyethyleneimine (PEI), and then Fe3O4@PEI was further modified with MoS2 by the hydrothermal method to fabricate 3D flower-like structured magnetic polyethyleneimine@MoS2(MP@MoS2) composites, and the composites were served as efficient adsorbents to capture Cr(VI) and Pb(II) from aqueous solution. The effects of temperature, pH, shaking time and environmental conditions on adsorption performance of MP@MoS2 towards Cr(VI) and Pb(II) have been conducted by batch adsorption experiments. The prepared MP@MoS2 exhibited high adsorption capacities (192.30 mg/g for Cr(VI) at pH 3.0 and 256.41 mg/g for Pb(II) at pH 6.0) and the adsorption equilibrium could be achieved in a short time. Moreover, MP@MoS2 composites with high saturation magnetization could be simply separated under an external magnet. Combined experiments and spectral analysis, the underlying adsorption mechanism for Cr(VI) on MP@MoS 2 was mainly attributed to the reduction of Cr(VI) to Cr(III), and the removal of Pb(II) was due to the complexation with sulfur groups and amino-groups. Consequently, the prepared 3D flower-like structured MP@MoS2 has a great potential for the practical application in removing Cr(VI) and Pb(II) from the aquatic environment. (C) 2020 Elsevier Inc. All rights reserved.
资助项目	Natural Science Foundation of Anhui Province[2008085MB46] ; Research Fund Program of Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources[2017B030314182] ; Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Key Laboratory of Photovoltaic and Energy Conservation Materials, Chinese Academy of Sciences ; Chinese Academy of Sciences
WOS关键词	MOLYBDENUM-DISULFIDE ; AQUEOUS-SOLUTION ; ADSORPTION ; GRAPHENE ; ADSORBENT ; MICROSPHERES ; REDUCTION ; U(VI) ; NANOSHEETS ; CHROMIUM
WOS研究方向	Chemistry
语种	英语
出版者	ACADEMIC PRESS INC ELSEVIER SCIENCE
WOS记录号	WOS:000581780400050
资助机构	Natural Science Foundation of Anhui Province ; Research Fund Program of Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources ; Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Key Laboratory of Photovoltaic and Energy Conservation Materials, Chinese Academy of Sciences ; Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/105064]
专题	中国科学院合肥物质科学研究院
通讯作者	Chen, Changlun
作者单位	1.Guangzhou Univ, Sch Environm Sci & Engn, Guangdong Prov Key Lab Radionuclides Pollut Contr, Guangzhou 510006, Peoples R China 2.Soochow Univ, Collaborat Innovat Ctr Radiat Med Jiangsu Higher, Suzhou 215123, Peoples R China 3.Univ Sci & Technol China, Hefei 230026, Peoples R China 4.Chinese Acad Sci, Inst Plasma Phys, Hefei Inst Phys Sci, Key Lab Photovolta & Energy Conservat Mat, POB 1126, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Sun, Chengwei,Song, Gang,Chen, Lili,et al. Three dimensional flower-like magnetic polyethyleneimine@MoS2 composites for highly efficient removal of Cr(VI) and Pb(II) ions[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2020,580.
APA	Sun, Chengwei,Song, Gang,Chen, Lili,Ren, Xuemei,&Chen, Changlun.(2020).Three dimensional flower-like magnetic polyethyleneimine@MoS2 composites for highly efficient removal of Cr(VI) and Pb(II) ions.JOURNAL OF COLLOID AND INTERFACE SCIENCE,580.
MLA	Sun, Chengwei,et al."Three dimensional flower-like magnetic polyethyleneimine@MoS2 composites for highly efficient removal of Cr(VI) and Pb(II) ions".JOURNAL OF COLLOID AND INTERFACE SCIENCE 580(2020).