Document Detail


Chitosan pyrolysis and adsorption properties of chitosan and its carbonizate.
MedLine Citation:
PMID:  20347434     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Chitosan was characterized by Fourier transform infrared spectroscopy (FTIR), (13)C-nuclear magnetic resonance (NMR), X-ray diffraction (XRD), and elemental analysis (EA). The thin chitosan films obtained by the casting method were heated in vacuum from room temperature to 600 degrees C. The progress of thermal degradation and carbonization process was monitored by FTIR spectroscopy in a vacuum cell, which allows the elimination of the influence of atmospheric humidity on the chitosan and carbonizate properties. The adsorption of water on the degassed chitosan and its carbonizate as well the oxidation process was also investigated by FTIR spectroscopy. The surface morphology of initial chitosan and obtained carbonaceous material was observed using atomic force microscopy (AFM). Detailed characterization of raw material and carbonization conditions is necessary for tailoring reproducible adsorbent properties.
Authors:
Halina Kaczmarek; Jerzy Zawadzki
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Publication Detail:
Type:  Journal Article     Date:  2010-03-04
Journal Detail:
Title:  Carbohydrate research     Volume:  345     ISSN:  1873-426X     ISO Abbreviation:  Carbohydr. Res.     Publication Date:  2010 May 
Date Detail:
Created Date:  2010-04-19     Completed Date:  2010-07-12     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0043535     Medline TA:  Carbohydr Res     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  941-7     Citation Subset:  IM    
Affiliation:
Faculty of Chemistry, Nicolaus Copernicus University, Gagarin 7 str., 87-100 Toruń, Poland. halina@chem.uni.torun.pl <halina@chem.uni.torun.pl>
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MeSH Terms
Descriptor/Qualifier:
Adsorption
Carbon / chemistry*
Chitosan / analogs & derivatives*,  chemistry*
Hot Temperature
Microscopy, Atomic Force
Oxygen / chemistry
Spectroscopy, Fourier Transform Infrared
Volatilization
Water / chemistry
Chemical
Reg. No./Substance:
7440-44-0/Carbon; 7732-18-5/Water; 7782-44-7/Oxygen; 9012-76-4/Chitosan

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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