全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

碳纳米管溶胶的制备及其去除水中异狄氏剂的研究

Keywords: 碳纳米管,溶胶,吸附,异狄氏剂,持久性有机污染物

Full-Text   Cite this paper   Add to My Lib

Abstract:

采用强酸表面氧化法对碳纳米管表面进行处理,促进碳纳米管在水中的分散,制备碳纳米管溶胶,用于去除水中低浓度持久性有机污染物异狄氏剂。扫描电镜观测表明,氧化后的碳纳米管团簇被分散开,碳纳米管被打断。碳纳米管溶胶对异狄氏剂的吸附性能研究表明,制备的碳纳米管溶胶对异狄氏剂吸附去除效能优于原始碳纳米管,优化的pH值为6,此时碳纳米管溶胶对18μg/L异狄氏剂去除率达到100%;水中的腐殖质提高了吸附去除效能;碳纳米管溶胶对异狄氏剂的吸附等温线呈线性,碳纳米管溶胶的吸附性能优于原始碳纳米管吸附性能。吸附去除后,溶胶态碳纳米管以0.05mmol/L氯化铝从水中沉淀分离。

References

[1]  Iijima I.Helical mierotubules of graphitic carbon.Nature,1991,354:56~58
[2]  Zhao G.C.,Wu F.H.,Wei X.W.Preparation of multiwalled carbon nanotubes colloid and adsorption for cationic dye nile blue.Journal of Anhui Normal University(Natural Science),2002,25(2):157~160
[3]  Long R.Q.,Yang R.Carbon nanotubes as superior sorbent for dioxin removal.J.Am.Chem.Soe.,2001,123:2058~2059
[4]  王曙光,李延辉,栾兆坤,等.碳纳米管负载氧化铝及其吸附水中氟离子.科学通报,2002,47(1):14-16
[5]  Li Y.H.,Luan z.K.,Xu X.,et al.Removal of Cu2 from queous solutions by carbon nanotubes.Adsorpt.Sci.Technol.,2003,21:475~485
[6]  Peng X.J.,Luan Z.K.,et al.Adsoption of arsenate to ceria supported on carbon nanotubes.Mater.Lett.,2005,59(4):399~403
[7]  Peng X.J.,Luan z.K.,et al.Carbon nanotubes-iron oxide magnetic composites for the removal of Pb(Ⅱ) and Cu(Ⅱ) from water.Carbon,2005,43:880~883
[8]  Peng X.J.,Li Y.H.,Luan Z.K.,et al.Adsorption of 1,2-dichlorobenzene from wator to carbon nanotubes.Chem.Phys.Lett.,2003,376:154~158
[9]  Lu C.S.,Chung Y.L.,Chang K.F.J.Adsorption thermodynamic and kinetic studies of trihalomethanes on multiwalled carbon nanotubes.J.Hazard.Mater.,2006,138(2):304~310

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133