Removal of radiocobalt from aqueous solution by oxidized MWCNT

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	Removal of radiocobalt from aqueous solution by oxidized MWCNT
	Wang, Q; Chen, L; Sun, YB
刊名	JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
	2012
英文摘要	The study was undertaken to evaluate the feasibility of oxidized multiwalled carbon nanotube (oxidized MWCNT) for the removal of radiocobalt (Co-60) from aqueous solutions. The oxygen functional groups of oxidized MWCNT were characterized by FT-IR and XPS. Batch experiments were performed to study the sorption of cobalt as a function of contact time, solid contents, pH, ionic strength, foreign ions, and temperature. Two kinetic models viz. pseudo-first-order and pseudo-second-order were used to determine kinetic sorption parameters, and the kinetic sorption could be described more favorably by the pseudo-second-order model. The thermodynamic parameters (a dagger GA degrees, a dagger SA degrees, a dagger HA degrees) calculated from the temperature-dependent sorption isotherms indicated that the sorption of Co(II) on oxidized MWCNT was an endothermic and spontaneous processes. The results suggest that oxidized MWCNT can be used efficiently in the treatment of industrial effluents containing radioactive and heavy metal ions.
学科主题	等离子体物理与核聚变研究
公开日期	2012-07-09
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn/handle/334002/5726]
专题	合肥物质科学研究院_中科院等离子体物理研究所
推荐引用方式 GB/T 7714	Wang, Q,Chen, L,Sun, YB. Removal of radiocobalt from aqueous solution by oxidized MWCNT[J]. JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY,2012.
APA	Wang, Q,Chen, L,&Sun, YB.(2012).Removal of radiocobalt from aqueous solution by oxidized MWCNT.JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY.
MLA	Wang, Q,et al."Removal of radiocobalt from aqueous solution by oxidized MWCNT".JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY (2012).