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2009 | 64 | 64-74
Article title

Preparation of nanostructured carbons for solid phase extraction

Content
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Languages of publication
EN
Abstracts
EN
Nanostructured carbons have been obtained by the template method using silica gel and zeolite as structure directing agents. Carbons were characterised by nitrogen adsorption, acid-base titration, XRD and TEM, thermogravimetric analysis and IR spectroscopy. All carbons show developed and uniform porous structure with the mean size range mesopore 3.4 and 4.8 nm for silica gel derived carbons and in the micropore range 1.1 nm for zeolite derived carbon. The BET surface area of silica gel derived carbons is in the range 1230-1280 m2/g while zeolite derived carbon possesses very high BET surface area 3000 m2/g. Acid-base titration shows that carbons obtained by the template method contain a significant number of surface groups. Silica gel derived carbons possess mainly carboxylic and phenolic groups with small contribution of lactone/enol groups which totals 1.1-1.5 mmol/g. Extremely high number of surface groups (mainly phenolic) demonstrates carbon derived from zeolite - 11.3 mmol/g. The presence of phenolic groups was confirmed by IR spectroscopy. To study adsorption-desorption properties of nanostructured carbons towards phenol and chlorophenols a solid phase extraction method was used. High recoveries of chlorophenols were obtained (75-93%) at the breakthrough volumes 1200-1400 mL. The recoveries are much higher these that obtained with commercially available carbon ACC (Supelco).
Keywords
Year
Volume
64
Pages
64-74
Physical description
Dates
published
1 - 1 - 2009
online
22 - 1 - 2010
Contributors
author
  • Institute for Sorption and Problems of Endoecology, NAS of Ukraine, General Naumov St. 13, 03-164 Kiev, Ukraine
author
  • Institute for Sorption and Problems of Endoecology, NAS of Ukraine, General Naumov St. 13, 03-164 Kiev, Ukraine
author
  • Department of Polymer Chemistry, Maria Curie-Skłodowska University, ul. Gliniana 33, 20-614 Lublin, Poland
author
  • Department of Polymer Chemistry, Maria Curie-Skłodowska University, ul. Gliniana 33, 20-614 Lublin, Poland
author
  • Institute for Sorption and Problems of Endoecology, NAS of Ukraine, General Naumov St. 13, 03-164 Kiev, Ukraine
author
  • Institute for Sorption and Problems of Endoecology, NAS of Ukraine, General Naumov St. 13, 03-164 Kiev, Ukraine
author
  • Institute for Sorption and Problems of Endoecology, NAS of Ukraine, General Naumov St. 13, 03-164 Kiev, Ukraine
author
  • Institute for Problems of Materials Science, NAS of Ukraine, Krzhizhanovsky St. 3, 03-142 Kiev, Ukraine
References
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.-psjd-doi-10_2478_v10063-008-0006-7
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