Th(IV) Adsorption onto Oxidized Multi-Walled Carbon Nanotubes in the Presence of Hydroxylated Fullerene and Carboxylated Fullerene

doi:10.3390/ma6094168

	Th(IV) Adsorption onto Oxidized Multi-Walled Carbon Nanotubes in the Presence of Hydroxylated Fullerene and Carboxylated Fullerene
	Wang, Jing 1; Liu, Peng 1; Li, Zhan 2; Qi, Wei 1; Lu, Yan 3; Wu, Wangsuo 1
刊名	MATERIALS
	2013-09-01
卷号	6 页码:4168-4185
关键词	Influence C-60(Oh)(n) C-60(c(Cooh)(2))(n) Th(Iv) Adsorption Omwcnts
ISSN号	1996-1944
DOI	10.3390/ma6094168
文献子类	Article
英文摘要	The adsorption of Th(IV) onto the surface of oxidized multi-walled carbon nanotubes (oMWCNTs) in the absence and presence of hydroxylated fullerene (C-60(OH)(n)) and carboxylated fullerene (C-60(C(COOH)(2))(n)) has been investigated. C-60(OH)(n), C-60(C(COOH)(2))(n) and oMWCNTs have been chosen as model phases because of their representative in carbon nano-materials family. Adsorption experiments were performed by batch procedure as a function of contact time, pH, ionic strength, and temperature. The results demonstrated that the adsorption of Th(IV) was rapidly reached equilibrium and the kinetic process could be described by a pseudo-second-order rate model very well. Th(IV) adsorption on oMWCNTs was dependent on pH but independent on ionic strength. Adsorption isotherms were correlated better with the Langmuir model than with the Freundlich model. The thermodynamic parameters calculated from temperature-dependent adsorption isotherms suggested that Th(IV) adsorption on oMWCNTs was spontaneous and endothermic. Compared with the adsorption of Th(IV) on the same oMWCNTs free of C-60(OH)(n) or C-60(C(COOH)(2))(n), the study of a ternary system showed the inhibition effect of C-60(OH)(n) at high concentration on the adsorption of Th(IV) in a pH range from neutral to slightly alkaline; whereas the promotion effect of C-60(C(COOH)(2))(n), even at its low concentration, on Th(IV) adsorption was observed in acid medium.
资助项目	National Natural Science Foundation of China[J1030932]
WOS关键词	IONIC-STRENGTH ; SOLID-PHASE ; HUMIC-ACID ; HUMIC/FULVIC ACID ; AQUEOUS-SOLUTION ; FULVIC-ACIDS ; FOREIGN IONS ; SORPTION ; PH ; THORIUM(IV)
WOS研究方向	Materials Science
语种	英语
出版者	MDPI AG
WOS记录号	WOS:000330294700026
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/48149]
专题	中国科学院近代物理研究所
通讯作者	Wu, Wangsuo
作者单位	1.Lanzhou Univ, Radiochem Lab, Sch Nucl Sci & Technol, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 3.China Natl Nucl Corp Lanzhou Uranium Enrichment C, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Wang, Jing,Liu, Peng,Li, Zhan,et al. Th(IV) Adsorption onto Oxidized Multi-Walled Carbon Nanotubes in the Presence of Hydroxylated Fullerene and Carboxylated Fullerene[J]. MATERIALS,2013,6:4168-4185.
APA	Wang, Jing,Liu, Peng,Li, Zhan,Qi, Wei,Lu, Yan,&Wu, Wangsuo.(2013).Th(IV) Adsorption onto Oxidized Multi-Walled Carbon Nanotubes in the Presence of Hydroxylated Fullerene and Carboxylated Fullerene.MATERIALS,6,4168-4185.
MLA	Wang, Jing,et al."Th(IV) Adsorption onto Oxidized Multi-Walled Carbon Nanotubes in the Presence of Hydroxylated Fullerene and Carboxylated Fullerene".MATERIALS 6(2013):4168-4185.