Linked Life Data

19889440

Source:http://linkedlifedata.com/resource/pubmed/id/19889440

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2010-2-17
pubmed:abstractText
A new design in efficient sorbents for the removal of trace pollutants from water was proposed: grafting the external surface of gamma-alumina (gamma-Al(2)O(3)) nanofibers with functional groups that have a strong affinity to the contaminants. This new grafting strategy greatly improves the accessibility of these sorption sites to adsorbates and thus efficiency of the fibrous sorbents. The product sorbents could capture the pollutants selectively even when the concentration of the contaminants is extremely low. Two types of gamma-Al(2)O(3) nanofibers with different size were prepared via facile hydrothermal methods. Thiol groups were then grafted on the gamma-Al(2)O(3) fibers by refluxing the toluene solution of 3-mercaptopropyltrimethoxysilane (MPTMS). The thiol group modified fibers not only can efficiently remove heavy metal ions (Pb(2+) and Cd(2+)) from water at a high flux, but also display high sorption capacity under sorption equilibrium conditions. Similar result was obtained from the nanofibers grafted with octyl groups which are employed to selectively adsorb highly diluted hydrophobic 4-nonylphenol molecules from water. This study demonstrates that grafting nanofibers is a new and effective strategy for developing efficient sorbents.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
1879-2448
pubmed:author
pubmed:copyrightInfo
(c) 2009 Elsevier Ltd. All rights reserved.
pubmed:issnType
Electronic
pubmed:volume
44
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
741-50
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed:year
2010
pubmed:articleTitle
Alumina nanofibers grafted with functional groups: a new design in efficient sorbents for removal of toxic contaminants from water.
pubmed:affiliation
School of Physical and Chemical Sciences, Queensland University of Technology, Brisbane, Qld 4001, Australia.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't