Linked Life Data

20381244

Source:http://linkedlifedata.com/resource/pubmed/id/20381244

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-3
pubmed:dateCreated
2010-5-14
pubmed:abstractText
The effects of loading Fe(3+), Mg(2+), Cu(2+) or Ag(+) on activated carbons (ACs) on interaction of the carbon surfaces with dichloromethane (DCM) and trichloromethane (TCM) were investigated. Temperature-programmed desorption (TPD) experiments were conducted to measure the desorption activation energy of DCM/TCM on the ACs separately doped with ions Fe(3+), Mg(2+), Cu(2+) and Ag(+). The absolute hardness and electronegativity of DCM and TCM were estimated on the basis of density functional theory. The influence of loading the metal ions on the ACs on the interaction of its surfaces with DCM/TCM was discussed. Results showed that the desorption activation energy of DCM and TCM on the modified ACs followed the order: Fe(III)/AC>Mg(II)/AC>Cu(II)/AC>AC>Ag(I)/AC. Both DCM and TCM were hard base. The loading of ion Fe(3+) or Mg(2+) on the surface of the ACs enhanced the interaction between DCM/TCM and the surfaces due to Fe(3+) and Mg(2+) being hard acid, while the loading of ion Ag(+) on the surface of the AC weakened the interaction between DCM/TCM and the carbon surfaces due to Ag(+) being soft acid.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
1873-3336
pubmed:author
pubmed:copyrightInfo
2010 Elsevier B.V. All rights reserved.
pubmed:issnType
Electronic
pubmed:day
15
pubmed:volume
179
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
790-4
pubmed:meshHeading
pubmed:year
2010
pubmed:articleTitle
Effects of loading different metal ions on an activated carbon on the desorption activation energy of dichloromethane/trichloromethane.
pubmed:affiliation
School of Chemistry & Chemical Engineering, South China University of Technology, Guangzhou, 510640, China. qbxia@scut.edu.cn
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't