Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/32729
Title: Carbon nanotube membranes with ultrahigh specific adsorption capacity for water desalination and purification
Authors: Yang, HY
Han, ZJ
Yu, SF 
Pey, KL
Ostrikov, K
Karnik, R
Issue Date: 2013
Publisher: Nature Publishing Group
Source: Nature communications, 2013, v. 4, 2220 How to cite?
Journal: Nature Communications 
Abstract: Development of technologies for water desalination and purification is critical to meet the global challenges of insufficient water supply and inadequate sanitation, especially for point-of-use applications. Conventional desalination methods are energy and operationally intensive, whereas adsorption-based techniques are simple and easy to use for point-of-use water purification, yet their capacity to remove salts is limited. Here we report that plasma-modified ultralong carbon nanotubes exhibit ultrahigh specific adsorption capacity for salt (exceeding 400% by weight) that is two orders of magnitude higher than that found in the current state-of-the-art activated carbon-based water treatment systems. We exploit this adsorption capacity in ultralong carbon nanotube-based membranes that can remove salt, as well as organic and metal contaminants. These ultralong carbon nanotube-based membranes may lead to next-generation rechargeable, point-of-use potable water purification appliances with superior desalination, disinfection and filtration properties.
URI: http://hdl.handle.net/10397/32729
ISSN: 2041-1723
DOI: 10.1038/ncomms3220
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