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Selective adsorption behavior of ion-imprinted magnetic chitosan beads for removal of Cu(II) ions from aqueous solution
Ma, Licheng1,2; Zheng, Qi2
2021-11-01
Source PublicationCHINESE JOURNAL OF CHEMICAL ENGINEERING
ISSN1004-9541
Volume39Pages:103-111
AbstractHeavy metal ion is one of the major environmental pollutants. In this study, a Cu(II) ions imprinted magnetic chitosan beads are prepared to use chitosan as functional monomer, Cu(II) ions as template, Fe3O4 as magnetic core and epichlorohydrin and glutaraldehyde as crosslinker, which can be used for removal Cu(II) ions from wastewater. The kinetic study shows that the adsorption process follows the pseudo-second-order kinetic equations. The adsorption isotherm study shows that the Langmuir isotherm equation best fits for the monolayer adsorption processes. The selective adsorption properties are performed in Cu(II)/Zn(II), Cu(II)/Ni(II), and Cu(II)/Co(II) binary systems. The results shows that the IIMCD has a high selectivity for Cu(II) ions in binary systems. The mechanism of IIMCD recognition Cu(II) ions is also discussed. The results show that the IIMCD adsorption Cu(II) ions is an enthalpy controlled process. The absolute value of DH (Cu(II)) and DS(Cu(II)) is greater than DH (Zn(II), Ni(II), Co(II)) and DS (Zn(II), Ni (II), Co(II)), respectively, this indicates that the Cu(II) ions have a good spatial matching with imprinted holes on IIMCD. The FTIR and XPS also demonstrates the strongly combination of function groups on imprinted holes in the suitable space position. Finally, the IIMCD can be regenerated and reused for 10 times without a significantly decreasing in adsorption capacity. This information can be used for further application in the selective removal of Cu(II) ions from industrial wastewater. (C) 2020 The Chemical Industry and Engineering Society of China, and Chemical Industry Press Co., Ltd. All rights reserved.
KeywordIon imprinted techniques Selective recognition Ion-imprinted magnetic chitosan beads Kinetic Thermodynamics
DOI10.1016/j.cjche.2020.09.030
Language英语
WOS KeywordWASTE-WATER ; CHEMICAL PRECIPITATION ; METAL ; BIOSORPTION ; COPPER(II) ; DESIGN ; CHITIN
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
WOS IDWOS:000735203700010
PublisherCHEMICAL INDUSTRY PRESS CO LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/51632
Collection中国科学院过程工程研究所
Corresponding AuthorMa, Licheng
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Gen Res Inst Nonferrous Met, Rare Met & Met Mat Res Inst, Beijing 100008, Peoples R China
Recommended Citation
GB/T 7714
Ma, Licheng,Zheng, Qi. Selective adsorption behavior of ion-imprinted magnetic chitosan beads for removal of Cu(II) ions from aqueous solution[J]. CHINESE JOURNAL OF CHEMICAL ENGINEERING,2021,39:103-111.
APA Ma, Licheng,&Zheng, Qi.(2021).Selective adsorption behavior of ion-imprinted magnetic chitosan beads for removal of Cu(II) ions from aqueous solution.CHINESE JOURNAL OF CHEMICAL ENGINEERING,39,103-111.
MLA Ma, Licheng,et al."Selective adsorption behavior of ion-imprinted magnetic chitosan beads for removal of Cu(II) ions from aqueous solution".CHINESE JOURNAL OF CHEMICAL ENGINEERING 39(2021):103-111.
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