On the role of humic acids' carboxyl groups in the binding of charged organic compounds
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F15%3APU114761" target="_blank" >RIV/00216305:26310/15:PU114761 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.chemosphere.2015.06.093" target="_blank" >http://dx.doi.org/10.1016/j.chemosphere.2015.06.093</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.chemosphere.2015.06.093" target="_blank" >10.1016/j.chemosphere.2015.06.093</a>
Alternative languages
Result language
angličtina
Original language name
On the role of humic acids' carboxyl groups in the binding of charged organic compounds
Original language description
Interactions of humic acids (HAs) with two cationic dyes (methylene blue and rhodamine 6G) were studied using a unique combination of diffusion and partitioning studies in HAs, containing hydrogels and batch sorption experiments. In order to investigate the involvement of carboxyl groups of HAs in these interactions, all experiments were performed for both, the original lignite HAs and HAs with selectively methylated carboxyls. The results of the diffusion experiments confirm that the interactions between the solute and humic substances have a strong impact on the rate of diffusion process. Surprisingly, the effect is almost equally approved for original and methylated HAs. On the other hand, the results of batch sorption experiments show strong improvement of the sorption capacity (methylated HAs), which is explained by changed morphology of alkylated HAs. The comparison of the results of diffusion and adsorption experiments shows that the diffusion experiments simulate the transport of solutes in natural humics containing environment more reasonably.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10403 - Physical chemistry
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
CHEMOSPHERE
ISSN
0045-6535
e-ISSN
1879-1298
Volume of the periodical
138
Issue of the periodical within the volume
11
Country of publishing house
GB - UNITED KINGDOM
Number of pages
8
Pages from-to
503-510
UT code for WoS article
000361772800068
EID of the result in the Scopus database
2-s2.0-84940918891