Regenerable magnetic iron oxide incorporated chitosan beads for sulfate (SO42−) removal from wastewater: Isotherms, kinetics and mechanism
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F25%3A63597580" target="_blank" >RIV/70883521:28610/25:63597580 - isvavai.cz</a>
Result on the web
<a href="https://onlinelibrary.wiley.com/doi/10.1002/pat.70395" target="_blank" >https://onlinelibrary.wiley.com/doi/10.1002/pat.70395</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/pat.70395" target="_blank" >10.1002/pat.70395</a>
Alternative languages
Result language
angličtina
Original language name
Regenerable magnetic iron oxide incorporated chitosan beads for sulfate (SO42−) removal from wastewater: Isotherms, kinetics and mechanism
Original language description
Sulfate contamination removal from mine waste and industrial water is a primary environmental concern, with high concentrations leading to disease. This research focuses on the preparation of iron oxide-incorporated chitosan beads (IOICBs) for the effective adsorption removal of sulfate. The IOICBs were synthesized by a chemical co-precipitation approach and characterized by Scanning Electron Microscopy, x-ray Diffraction, Brunauer–Emmett–Teller analysis, Fourier Transform Infrared Spectroscopy, and energy-dispersive x-ray mapping for structural, chemical, and morphological properties. The sulfate adsorption on IOICBs was investigated in batch mode studies using UV–Vis spectroscopy. The effect of several parameters, such as adsorbent dosage, pH, initial concentration, and contact time, on the sorption capacity of the IOICBs was studied. The IOICBs have a high efficacy for sulfate removal from contaminated water at pH 2 with a maximum sorption capacity of 147.7 mg/g at room temperature. The mechanism suggested that the presence of acidic NH4+ functional groups on the surface of chitosan facilitates the chemisorption of the sulfate ions. The adsorption equilibrium is in good agreement with the Langmuir Isotherm (R2 = 0.997), and the kinetics analysis suggests the adsorption is a pseudo-second-order process (R2 = 0.992), confirming the chemisorption of sulfate species on IOICBs. After sulfate adsorption, the IOICBs were regenerated in 0.1 M NaOH solution, reused for multiple sorption/desorption cycles, and the reusability remained at over 83% after four consecutive cycles. Thus, IOICBs are potential absorbents for removing industrial pollutants such as sulfate ions from wastewater.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10404 - Polymer science
Result continuities
Project
<a href="/en/project/EH23_021%2F0009004" target="_blank" >EH23_021/0009004: Application potential development in the field of polymer materials in the context of circular economy compliance (POCEK)</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>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
Polymers for Advanced Technologies
ISSN
1042-7147
e-ISSN
1099-1581
Volume of the periodical
36
Issue of the periodical within the volume
11
Country of publishing house
GB - UNITED KINGDOM
Number of pages
15
Pages from-to
nestránkováno
UT code for WoS article
001607110500001
EID of the result in the Scopus database
2-s2.0-105020982994