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231223s2010 xx |||||o 00| ||eng c |
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|a 10.1021/la902059y
|2 doi
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|a pubmed24n0647.xml
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|a (DE-627)NLM194016862
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|a (NLM)20038170
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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1 |
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|a Seredych, Mykola
|e verfasserin
|4 aut
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|a Effect of the incorporation of nitrogen to a carbon matrix on the selectivity and capacity for adsorption of dibenzothiophenes from model diesel fuel
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|c 2010
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 02.03.2010
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|a Date Revised 21.11.2013
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|a published: Print
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|a Citation Status MEDLINE
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|a Two synthetic, polymer-derived carbons were modified with urea to incorporate nitrogen surface functional groups. Then they were investigated as adsorbents of dibenzothiophene (DBT) and 4, 6-dimethyldibenzothiophene (DMDBT) from simulated diesel fuel under dynamic conditions with the total concentration of sulfur being 20 ppmw. The materials before and after adsorption were characterized using elemental analysis, XPS, adsorption of nitrogen, potentiometric titration, and thermal analysis. The incorporation of nitrogen species caused a visible increase in the adsorption capacity. However, selectivity evaluated on the basis of the adsorption of naphthalene decreased. Whereas at low surface coverage the volume of pores smaller than 10 A is important, with the progress of adsorption the surface chemistry gradually starts to play a more important role via either polar or acid/base interactions. The latter are important for the selectivity of adsorption when the aromatic hydrocarbons are present. Although polar interactions are weaker than the acid-base ones, the centers that they represent seem to be more favorable to attract DBT and DMDBT than arenes. There is an indication that nitrogen-containing groups contribute to chemical transformations of DBT and DMDBT/oxidation and promote the involvement of oxygen from the surface groups in the reactive adsorption
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|a Journal Article
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|a 4,6-dimethyldibenzothiophene
|2 NLM
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|a Gasoline
|2 NLM
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|a Naphthalenes
|2 NLM
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|a Polymers
|2 NLM
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|a Protons
|2 NLM
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|a Sulfonic Acids
|2 NLM
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|a Thiophenes
|2 NLM
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|a naphthalene
|2 NLM
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|a 2166IN72UN
|2 NLM
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|a Sulfur
|2 NLM
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|a 70FD1KFU70
|2 NLM
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|a Carbon
|2 NLM
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|a 7440-44-0
|2 NLM
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|a 1-methylnaphthalene
|2 NLM
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|a E7SK1Y1311
|2 NLM
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| 650 |
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|a Nitrogen
|2 NLM
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|a N762921K75
|2 NLM
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|a dibenzothiophene
|2 NLM
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|a Z3D4AJ1R48
|2 NLM
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1 |
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|a Hulicova-Jurcakova, Denisa
|e verfasserin
|4 aut
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1 |
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|a Bandosz, Teresa J
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 26(2010), 1 vom: 05. Jan., Seite 227-33
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
1 |
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|g volume:26
|g year:2010
|g number:1
|g day:05
|g month:01
|g pages:227-33
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|u http://dx.doi.org/10.1021/la902059y
|3 Volltext
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