Conducting macroporous polyaniline/poly(vinyl alcohol) aerogels for the removal of chromium(VI) from aqueous media
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F20%3A00525079" target="_blank" >RIV/61389013:_____/20:00525079 - isvavai.cz</a>
Result on the web
<a href="https://link.springer.com/article/10.1007%2Fs11696-020-01151-z" target="_blank" >https://link.springer.com/article/10.1007%2Fs11696-020-01151-z</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s11696-020-01151-z" target="_blank" >10.1007/s11696-020-01151-z</a>
Alternative languages
Result language
angličtina
Original language name
Conducting macroporous polyaniline/poly(vinyl alcohol) aerogels for the removal of chromium(VI) from aqueous media
Original language description
Extensive research has been focused on the removal of various pollutants from wastewaters. Hexavalent chromium Cr(VI) is of special concern as it is a known carcinogen. In the present study, macroporous polyaniline/poly(vinyl alcohol) aerogel was applied as a promising material form which can act as both adsorbent and reductant for Cr(VI) in aqueous solutions. The removal of Cr(VI) was assessed by monitoring the decrease in optical absorption with UV–visible absorption spectroscopy. The effect of different parameters, such as the initial Cr(VI) concentration, contact time, and the adsorbent dose, on the removal process has been studied. The intraparticle diffusion model was found to characterize the adsorption process well, but Freundlich isotherm best fits the adsorption isotherm data. Investigation of the substrate regeneration revealed that polyaniline-based aerogel can be reused for the removal of Cr(VI) with good efficiency. The maximum adsorption capacity of composite aerogel reached 41.2 mg g−1, which is one of the best results reported in the literature. The conductivity and electroactivity of the material may subsequently be used in the design of intelligent adsorbents when the adsorption/desorption could be controlled by the applied electrical potential.
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
10404 - Polymer science
Result continuities
Project
<a href="/en/project/GA19-04859S" target="_blank" >GA19-04859S: Interaction of conducting polymers with organic dyes: Principles and consequences</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Chemical Papers
ISSN
2585-7290
e-ISSN
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Volume of the periodical
74
Issue of the periodical within the volume
9
Country of publishing house
SK - SLOVAKIA
Number of pages
11
Pages from-to
3183-3193
UT code for WoS article
000526984200002
EID of the result in the Scopus database
2-s2.0-85083315947