English  |  正體中文  |  简体中文  |  Items with full text/Total items : 43312/67235
Visitors : 2024814      Online Users : 2
RC Version 5.0 © Powered By DSPACE, MIT. Enhanced by NTU/NCHU Library IR team.
National Chung Hsing University Institutional Repository - NCHUIR > 工學院 > 環境工程學系所 > 依資料類型分類 > 期刊論文 >  Adsorption of zinc(II) from water with purified carbon nanotubes

Please use this identifier to cite or link to this item: http://nchuir.lib.nchu.edu.tw/handle/309270000/126117

標題: Adsorption of zinc(II) from water with purified carbon nanotubes
作者: Lu, Chungsying;Chiu, Huantsung
Contributors: 國立中興大學環境工程學系
National Chung Hsing University,Department of Environmenral Engineering
Miao-zhen+Luo
關鍵字: Carbon nanotubes;Adsorption;Zinc;pH effect;Powdered activated carbon
日期: 2006-2
Issue Date: 2012-10-19 16:06:07 (UTC+8)
Publisher: Elsevier+Ltd.
摘要: Commercial single-walled carbon nanotubes (SWCNTs) and multi-walled carbon nanotubes (MWCNTs) were purified by sodium hypochlorite solutions and were employed as adsorbents to study the adsorption characteristics of zinc from water. The properties of CNTs such as purity, structure and nature of the surface were greatly improved after purification which made CNTs become more hydrophilic and suitable for adsorption of Zn2+. In general, the adsorption capacity of Zn2+ onto CNTs increased with the increase of pH in the pH range of 1-8, fluctuated very little and reached maximum in the pH range of 8-11 and decreased at a pH of 12. A comparative study on the adsorption of Zn2+ between CNTs and commercial powdered activated carbon (PAC) was also conducted. The maximum adsorption capacities of Zn2+ calculated by the Langmuir model are 43.66, 32.68, and 13.04 mg g−1 with SWCNTs, MWCNTs and PAC, respectively, at an initial Zn2+ concentration range of 10-80 mg l−1. The short contact time needed to reach equilibrium as well as the high adsorption capacity suggests that SWCNTs and MWCNTs possess highly potential applications for the removal of Zn2+ from water.
Relation: Chemical Engineering Science, Volume 61, Issue 4, Page(s) 1138-1145.
Appears in Collections:[依資料類型分類] 期刊論文
[中興大學] Hi-cited 文章列表

loading Web of Knowledge data....

Files in This Item:

There are no files associated with this item.



 


學術資源

著作權聲明

本網站為收錄中興大學學術著作及學術產出,已積極向著作權人取得全文授權,並盡力防止侵害著作權人之權益。如仍發現本網站之數位內容有侵害著作權人權益情事者,請權利人通知本網站維護人員,將盡速為您處理。

本網站之數位內容為國立中興大學所收錄之機構典藏,無償提供學術研究與公眾教育等公益性使用。

聯絡網站維護人員:wyhuang@nchu.edu.tw,04-22840290 # 412。

DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU/NCHU Library IR team Copyright ©   - Feedback