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Adsorption and kinetic desorption study of Eu152+154(III) on multiwall carbon nanotubes from aqueous solution by using chelating resin and XPS methods
Tan, X. L.1; Xu, D.1; Chen, C. L.1; Wang, X. K.1; Hu, W. P.2
2008
Source PublicationRADIOCHIMICA ACTA
ISSN0033-8230
Volume96Issue:1Pages:23-29
AbstractMultiwall carbon nanotubes (MWCNTs) have been pretreated with HNO3 and used for the adsorption of radionuclide Eu152+154(III) from aqueous solutions. The effects of pH (2-12), ionic strength (0.01 M and 0.1 M NaClO4) and radionuclide Eu152+154(III) solution concentrations (10(-8)-10(-5) mol/L) on the adsorption of Eu152+154(III) on MWCNTs were investigated. The experiments were carried out at 25 +/- 2 degrees C and under atmosphere conditions. Adsorption of Eu152+154(III) on MWCNTs increases significantly with increasing pH at pH < 6, and over 96% Eu152+154(III) are adsorbed on MWCNTs at pH > 6. Strong surface complexation and/or chemisorptions are considered as the main adsorption mechanism. The sorption was also characterized by using high resolution XPS spectra. The results show that MWCNTs can be a promising candidate of adsorbent for preconcentration of lanthanides from large volumes in radioactive nuclear waste management.
KeywordCarbon Nanotubes Eu (Iii) Adsorption Xps Kinetic Desorption
DOI10.1524/ract.2008.1457
Indexed BySCI
Language英语
WOS IDWOS:000252710100003
PublisherOLDENBOURG VERLAG
Citation statistics
Cited Times:55[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/63814
Collection中国科学院化学研究所
Corresponding AuthorWang, X. K.
Affiliation1.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China
2.Chinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Tan, X. L.,Xu, D.,Chen, C. L.,et al. Adsorption and kinetic desorption study of Eu152+154(III) on multiwall carbon nanotubes from aqueous solution by using chelating resin and XPS methods[J]. RADIOCHIMICA ACTA,2008,96(1):23-29.
APA Tan, X. L.,Xu, D.,Chen, C. L.,Wang, X. K.,&Hu, W. P..(2008).Adsorption and kinetic desorption study of Eu152+154(III) on multiwall carbon nanotubes from aqueous solution by using chelating resin and XPS methods.RADIOCHIMICA ACTA,96(1),23-29.
MLA Tan, X. L.,et al."Adsorption and kinetic desorption study of Eu152+154(III) on multiwall carbon nanotubes from aqueous solution by using chelating resin and XPS methods".RADIOCHIMICA ACTA 96.1(2008):23-29.
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