Sorption of thorium(IV) from aqueous solutions by graphene oxide

doi:10.1007/s10967-014-2956-x

CORC > 北京大学 > 化学与分子工程学院

	Sorption of thorium(IV) from aqueous solutions by graphene oxide
	Li, Yan ; Wang, Chunli ; Guo, Zhijun ; Liu, Chunli ; Wu, Wangsuo
刊名	journal of radioanalytical and nuclear chemistry
	2014
关键词	Sorption Th(IV) Graphene oxide Sorption capacity IONIC-STRENGTH ACTIVATED CARBON FULVIC-ACID CONTACT TIME HUMIC/FULVIC ACID ADSORPTION TH(IV) PH TEMPERATURE DESORPTION
DOI	10.1007/s10967-014-2956-x
英文摘要	Graphene oxide (GO) is one of the most important carbon nano-materials. In this paper, GO was synthesized from flake graphite and characterized by transmission electron microscopy, atomic force microscopy, and X-ray photoelectron spectroscopy. The sorption of Th(IV) on GO was investigated as a function of contact time, solid-to-liquid ratio, pH, ionic strength, and in the presence of fulvic acid (FA) and humic acid (HA) by batch experiments. The sorption percentage of Th(IV) on GO decreased with increasing ionic strength and decreasing solid-to-liquid ratio. The sorption edge of Th(IV) in the presence of FA/HA is much lower than that in the absence of FA/HA. Furthermore, the sorption processes of Th(IV) can be described by a pseudo-second order rate model. Based on the Langmuir model, the maximum sorption capacities (Cs-max) of Th(IV) were about 5.80 x 10(-4) mol/L. From thermodynamic investigation, sorption of Th(IV) on GO is spontaneous and endothermic in nature. The rapid sorption rate and high sorption capacity suggest that GO is a promising adsorbent for Th(IV).; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000332034400068&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Chemistry, Analytical; Chemistry, Inorganic & Nuclear; Nuclear Science & Technology; SCI(E); 10; ARTICLE; liucl@pku.edu.cn; wuws@lzu.edu.cn; 3; 1683-1691; 299
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/150567]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Li, Yan,Wang, Chunli,Guo, Zhijun,et al. Sorption of thorium(IV) from aqueous solutions by graphene oxide[J]. journal of radioanalytical and nuclear chemistry,2014.
APA	Li, Yan,Wang, Chunli,Guo, Zhijun,Liu, Chunli,&Wu, Wangsuo.(2014).Sorption of thorium(IV) from aqueous solutions by graphene oxide.journal of radioanalytical and nuclear chemistry.
MLA	Li, Yan,et al."Sorption of thorium(IV) from aqueous solutions by graphene oxide".journal of radioanalytical and nuclear chemistry (2014).