Synthesis of high-molecular-weight poly (itaconic-co-methacrylic acid) copolymers for the fabrication of nanocomposite hydrogels for cationic dye removal
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F25%3A00638079" target="_blank" >RIV/61389013:_____/25:00638079 - isvavai.cz</a>
Result on the web
<a href="https://link.springer.com/article/10.1007/s10924-025-03624-2" target="_blank" >https://link.springer.com/article/10.1007/s10924-025-03624-2</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10924-025-03624-2" target="_blank" >10.1007/s10924-025-03624-2</a>
Alternative languages
Result language
angličtina
Original language name
Synthesis of high-molecular-weight poly (itaconic-co-methacrylic acid) copolymers for the fabrication of nanocomposite hydrogels for cationic dye removal
Original language description
This study introduces a novel class of physically crosslinked hydrogels synthesized from high-molecular-weight copolymers consisting of itaconic acid (IA), methacrylic acid (MAA) and laponite RD, which efficiently removes cationic dyes. The copolymers synthesized via free-radical polymerization in a deep eutectic solvent demonstrated increased thermal stability with increasing MAA content. Rheological assessments revealed elastic solid behavior (G′ > G″), with decreased stiffness correlated with increased MAA content, which was attributed to diminished electrostatic interactions. Structural analyses, including WAXS/SAXS and TEM, confirmed the complete exfoliation of the clay and the formation of a hierarchical network, upon dye adsorption, an expansion of the basal spacing to 15–20 nm was observed. The hydrogels exhibited a swelling capacity of up to 38 g/g in pure water, which was reduced to 10 g/g in saline conditions. The highest adsorption capacity of basic fuchsin was determined to be 70 mg/g, achieving a 99.5% removal efficiency using 0.05 g/L of adsorbent over a 2-hour period. The adsorption process followed the Freundlich isotherm and was well described by a nonlinear pseudo-first-order (PFO) kinetic model. The dye adsorption process was spontaneous, and exothermic and followed physisorption. Crosslinking with calcium ions substantially increased the storage modulus by 252-fold and controlled the swelling ratio to 15.9 ± 0.7 g/g, facilitating regeneration cycles with 99.2 ± 0.2% efficiency. These findings position IA-MAA laponite RD hydrogels as sustainable materials with significant potential for application in dye-contaminated wastewater treatment.
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/GF25-15669K" target="_blank" >GF25-15669K: Bio-based covalent adaptable networks designed for facile recycling</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Polymers and the Environment
ISSN
1566-2543
e-ISSN
1572-8919
Volume of the periodical
33
Issue of the periodical within the volume
August
Country of publishing house
US - UNITED STATES
Number of pages
21
Pages from-to
3785-3805
UT code for WoS article
001510298200001
EID of the result in the Scopus database
2-s2.0-105008324229