Physical and electrical properties of polylactic acid-based adsorbents for the malachite green dye removal with potential sensoric application
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F25%3A63594758" target="_blank" >RIV/70883521:28610/25:63594758 - isvavai.cz</a>
Result on the web
<a href="https://link.springer.com/article/10.1007/s10924-025-03563-y" target="_blank" >https://link.springer.com/article/10.1007/s10924-025-03563-y</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10924-025-03563-y" target="_blank" >10.1007/s10924-025-03563-y</a>
Alternative languages
Result language
angličtina
Original language name
Physical and electrical properties of polylactic acid-based adsorbents for the malachite green dye removal with potential sensoric application
Original language description
New adsorbent films for the biosorption of malachite green (MG) dye from water were prepared using polylactic acid (PLA) as a renewable, degradable and thermoplastic polymer matrix, instead of widely used crosslinked systems. Polyaniline (PANI) and carbon fibers (CFs) were added to PLA through vigorous sonication followed by a casting technique to create electrically conductive PLA-based adsorbent films with enhanced functionality and adsorption properties. The composite films were characterized using scanning electron microscopy, Fourier transform infrared spectroscopy, differential scanning calorimetry, dynamic mechanical thermal analysis, and BET-surface area measurements to identify their functionality as adsorbents for removing MG dye from water. The produced PLA/PANI/CFs composite films exhibited higher electrical conductivity and surface area compared to PLA and PLA/PANI films. The effects of adsorbent film composition, contact time, pH, and dye concentration on adsorption efficiency were assessed. The adsorption test confirmed effective removal of MG dye with maximum adsorption capacities of up to 60.1 mg/g. The isotherm data fitted the Langmuir model with an R2 value of 0.99, implying a chemisorption process. The fabricated biosorbents disclosed the first-order kinetic model with high R2 values and an exothermic reaction with the MG dye, as the process is stimulated by a decrease in temperature. Adsorbent regeneration and the significant effect of various MG concentrations on electric conductivity, which changed by two orders of magnitude, demonstrated the applicability of PLA/PANI/CFs composite films as potential MG dye sensors.
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
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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
6
Country of publishing house
US - UNITED STATES
Number of pages
22
Pages from-to
"2776–2797"
UT code for WoS article
001457964800001
EID of the result in the Scopus database
2-s2.0-105001687976