請用此 Handle URI 來引用此文件: http://hdl.handle.net/11455/45584
標題: Chemical modification of multiwalled carbon nanotubes for sorption of Zn2+ from aqueous solution
作者: Lu, C.
盧重興
Chiu, H.
關鍵字: multiwalled carbon nanotubes
chemical oxidation
surface functional
groups
Zn2+ sorption
activated carbon
adsorption
removal
water
functionalization
ions
期刊/報告no:: Chemical Engineering Journal, Volume 139, Issue 3, Page(s) 462-468.
摘要: Multiwalled carbon nanotubes (MWCNTs) were oxidized by mixed HNO3/H2SO4 (3N+1S), HNO3, KMnO4 and NaClO and were selected as sorbents to study their characterization and isotherm of Zn2+ sorption in an aqueous solution. The physicochemical properties of MWCNTs were improved after oxidation, which made MWCNTs possess not only a more hydrophilic surface but also a more negatively charged surface, and consequently resulted in sorption of more Zn2+. The maximum Zn2+ sorption capacities of MWCNTs, MWCNTs(3N+1S), MWCNTs(HNO3), MWCNTs(KMnO4) and MWCNTs(NaClO) calculated by Langmuir model are 10.21, 18.14, 27.20, 28.01 and 32.68 mg g(-1), respectively. The MWCNTs(NaClO) have the best sorption performance of Zn2+ and their sorption kinetics was found to follow the pseudo second-order rate law. (C) 2007 Elsevier B.V. All rights reserved.
URI: http://hdl.handle.net/11455/45584
ISSN: 1385-8947
文章連結: http://dx.doi.org/10.1016/j.cej.2007.08.013
顯示於類別:環境工程學系所

文件中的檔案:
沒有與此文件相關的檔案。


在 DSpace 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。