Adsorption of lignocelluloses of pre-hydrolysis liquor on calcium carbonate to induce functional filler.
Identifieur interne : 002806 ( Main/Exploration ); précédent : 002805; suivant : 002807Adsorption of lignocelluloses of pre-hydrolysis liquor on calcium carbonate to induce functional filler.
Auteurs : Pedram Fatehi [Canada] ; Fadia C. Hamdan ; Yonghao NiSource :
- Carbohydrate polymers [ 1879-1344 ] ; 2013.
Descripteurs français
- KwdFr :
- Acer (composition chimique), Adsorption (MeSH), Betula (composition chimique), Bois (composition chimique), Carbonate de calcium (composition chimique), Cinétique (MeSH), Concentration en ions d'hydrogène (MeSH), Hydrolyse (MeSH), Lignine (composition chimique), Populus (composition chimique), Résines acryliques (composition chimique), Température (MeSH).
- MESH :
- composition chimique : Acer, Betula, Bois, Carbonate de calcium, Lignine, Populus, Résines acryliques.
- Adsorption, Cinétique, Concentration en ions d'hydrogène, Hydrolyse, Température.
English descriptors
- KwdEn :
- MESH :
- chemical , chemistry : Acrylic Resins, Calcium Carbonate, Lignin.
- chemistry : Acer, Betula, Populus, Wood.
- Adsorption, Hydrogen-Ion Concentration, Hydrolysis, Kinetics, Temperature.
Abstract
In this work, we aimed at adsorbing the oligo-sugars of prehydrolysis liquor on precipitated calcium carbonate (PCC) to produce modified PCC. The results showed that the adsorptions of oligo-sugars, lignin and furfural were greater on porous PCC (PCC2) than on nano-sized PCC (PCC1) due to the larger surface area of PCC2. The adsorption reached its maximum in 5 h on PCC1, but it gradually increased on PCC2 due to the diffusion of oligo-sugars and lignin into the pores of PCC2. Also, the experimental isotherm and kinetic results were well fitted into Langmuir and pseudo-second order models, respectively. The adsorption was greater at a lower temperature (i.e. 40°C) and pH (i.e. 7). Alternatively, cationic poly acrylamide (CPAM) was added to the PHL/PCC system, which led to more promising results (than that to PHL/PCC system) with the maximum lignocelluloses adsorption of 0.36 g/g on PCC2, among which 0.22 g/g was oligo-sugars.
DOI: 10.1016/j.carbpol.2013.01.081
PubMed: 23544571
Affiliations:
Links toward previous steps (curation, corpus...)
Le document en format XML
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<author><name sortKey="Hamdan, Fadia C" sort="Hamdan, Fadia C" uniqKey="Hamdan F" first="Fadia C" last="Hamdan">Fadia C. Hamdan</name>
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<series><title level="j">Carbohydrate polymers</title>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Acer (chemistry)</term>
<term>Acrylic Resins (chemistry)</term>
<term>Adsorption (MeSH)</term>
<term>Betula (chemistry)</term>
<term>Calcium Carbonate (chemistry)</term>
<term>Hydrogen-Ion Concentration (MeSH)</term>
<term>Hydrolysis (MeSH)</term>
<term>Kinetics (MeSH)</term>
<term>Lignin (chemistry)</term>
<term>Populus (chemistry)</term>
<term>Temperature (MeSH)</term>
<term>Wood (chemistry)</term>
</keywords>
<keywords scheme="KwdFr" xml:lang="fr"><term>Acer (composition chimique)</term>
<term>Adsorption (MeSH)</term>
<term>Betula (composition chimique)</term>
<term>Bois (composition chimique)</term>
<term>Carbonate de calcium (composition chimique)</term>
<term>Cinétique (MeSH)</term>
<term>Concentration en ions d'hydrogène (MeSH)</term>
<term>Hydrolyse (MeSH)</term>
<term>Lignine (composition chimique)</term>
<term>Populus (composition chimique)</term>
<term>Résines acryliques (composition chimique)</term>
<term>Température (MeSH)</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en"><term>Acrylic Resins</term>
<term>Calcium Carbonate</term>
<term>Lignin</term>
</keywords>
<keywords scheme="MESH" qualifier="chemistry" xml:lang="en"><term>Acer</term>
<term>Betula</term>
<term>Populus</term>
<term>Wood</term>
</keywords>
<keywords scheme="MESH" qualifier="composition chimique" xml:lang="fr"><term>Acer</term>
<term>Betula</term>
<term>Bois</term>
<term>Carbonate de calcium</term>
<term>Lignine</term>
<term>Populus</term>
<term>Résines acryliques</term>
</keywords>
<keywords scheme="MESH" xml:lang="en"><term>Adsorption</term>
<term>Hydrogen-Ion Concentration</term>
<term>Hydrolysis</term>
<term>Kinetics</term>
<term>Temperature</term>
</keywords>
<keywords scheme="MESH" xml:lang="fr"><term>Adsorption</term>
<term>Cinétique</term>
<term>Concentration en ions d'hydrogène</term>
<term>Hydrolyse</term>
<term>Température</term>
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<front><div type="abstract" xml:lang="en">In this work, we aimed at adsorbing the oligo-sugars of prehydrolysis liquor on precipitated calcium carbonate (PCC) to produce modified PCC. The results showed that the adsorptions of oligo-sugars, lignin and furfural were greater on porous PCC (PCC2) than on nano-sized PCC (PCC1) due to the larger surface area of PCC2. The adsorption reached its maximum in 5 h on PCC1, but it gradually increased on PCC2 due to the diffusion of oligo-sugars and lignin into the pores of PCC2. Also, the experimental isotherm and kinetic results were well fitted into Langmuir and pseudo-second order models, respectively. The adsorption was greater at a lower temperature (i.e. 40°C) and pH (i.e. 7). Alternatively, cationic poly acrylamide (CPAM) was added to the PHL/PCC system, which led to more promising results (than that to PHL/PCC system) with the maximum lignocelluloses adsorption of 0.36 g/g on PCC2, among which 0.22 g/g was oligo-sugars.</div>
</front>
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<ArticleTitle>Adsorption of lignocelluloses of pre-hydrolysis liquor on calcium carbonate to induce functional filler.</ArticleTitle>
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<Abstract><AbstractText>In this work, we aimed at adsorbing the oligo-sugars of prehydrolysis liquor on precipitated calcium carbonate (PCC) to produce modified PCC. The results showed that the adsorptions of oligo-sugars, lignin and furfural were greater on porous PCC (PCC2) than on nano-sized PCC (PCC1) due to the larger surface area of PCC2. The adsorption reached its maximum in 5 h on PCC1, but it gradually increased on PCC2 due to the diffusion of oligo-sugars and lignin into the pores of PCC2. Also, the experimental isotherm and kinetic results were well fitted into Langmuir and pseudo-second order models, respectively. The adsorption was greater at a lower temperature (i.e. 40°C) and pH (i.e. 7). Alternatively, cationic poly acrylamide (CPAM) was added to the PHL/PCC system, which led to more promising results (than that to PHL/PCC system) with the maximum lignocelluloses adsorption of 0.36 g/g on PCC2, among which 0.22 g/g was oligo-sugars.</AbstractText>
<CopyrightInformation>Copyright © 2013 Elsevier Ltd. All rights reserved.</CopyrightInformation>
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<AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Fatehi</LastName>
<ForeName>Pedram</ForeName>
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