Elderberry (Sambucus nigra) pith was modified with polyethyleneimine (PEI) in order to improve the adsorption properties. Characterization of both dried Sambucus nigra pith (DSNP) and amino modification of elderberry pith with branched PEI (PEI/DSNP) was performed by: Fourier-transform infrared spectroscopy (FTIR), optical microscopy, and porosity determination. The amine and ester number, as well as acid value, were determined on DSNP and PEI/DSNP samples using standard volumetric methods. The samples were used as adsorbents for Pb2+ ions from an aqueous solution in a batch system. The obtained results were fitted using suitable equilibrium isotherm and kinetic models. The maximum adsorption capacity for Pb2+ ions on DSNP and aminated sample, obtained using Langmuir adsorption isotherm at 298 K, are 18.9 and 47.8 mg g(-1), respectively. Based on the kinetic studies, the adsorption process follows the pseudo second-order model. Thermodynamic parameters showed that the adsorption proces...s is endothermic and spontaneous. In general, the overall adsorption process was improved by modifying starting material with branched PEI modifier by introducing large numbers of amino functionalities having high affinity to cations.
Keywords:
polyethyleneimine / lead sorption / heavy metals / Elderberry
TY - JOUR
AU - Bosnjaković, Jovana M.
AU - Bugarčić, Mladen
AU - Cutović, Natalija
AU - Jovanović, Aleksandar
AU - Manasijević, Srecko
AU - Marinković, Aleksandar D.
AU - Velicković, Zlate
PY - 2022
UR - https://ritnms.itnms.ac.rs/handle/123456789/610
AB - Elderberry (Sambucus nigra) pith was modified with polyethyleneimine (PEI) in order to improve the adsorption properties. Characterization of both dried Sambucus nigra pith (DSNP) and amino modification of elderberry pith with branched PEI (PEI/DSNP) was performed by: Fourier-transform infrared spectroscopy (FTIR), optical microscopy, and porosity determination. The amine and ester number, as well as acid value, were determined on DSNP and PEI/DSNP samples using standard volumetric methods. The samples were used as adsorbents for Pb2+ ions from an aqueous solution in a batch system. The obtained results were fitted using suitable equilibrium isotherm and kinetic models. The maximum adsorption capacity for Pb2+ ions on DSNP and aminated sample, obtained using Langmuir adsorption isotherm at 298 K, are 18.9 and 47.8 mg g(-1), respectively. Based on the kinetic studies, the adsorption process follows the pseudo second-order model. Thermodynamic parameters showed that the adsorption process is endothermic and spontaneous. In general, the overall adsorption process was improved by modifying starting material with branched PEI modifier by introducing large numbers of amino functionalities having high affinity to cations.
PB - Savez inženjera metalurgije Srbije, Beograd
T2 - Metallurgical & Materials Engineering
T1 - Eco-friendly elderberry based sorbent for removing pb2+ ions from aqueous solutions
EP - 401
IS - 2
SP - 391
VL - 28
DO - 10.30544/710
UR - conv_948
ER -
@article{
author = "Bosnjaković, Jovana M. and Bugarčić, Mladen and Cutović, Natalija and Jovanović, Aleksandar and Manasijević, Srecko and Marinković, Aleksandar D. and Velicković, Zlate",
year = "2022",
abstract = "Elderberry (Sambucus nigra) pith was modified with polyethyleneimine (PEI) in order to improve the adsorption properties. Characterization of both dried Sambucus nigra pith (DSNP) and amino modification of elderberry pith with branched PEI (PEI/DSNP) was performed by: Fourier-transform infrared spectroscopy (FTIR), optical microscopy, and porosity determination. The amine and ester number, as well as acid value, were determined on DSNP and PEI/DSNP samples using standard volumetric methods. The samples were used as adsorbents for Pb2+ ions from an aqueous solution in a batch system. The obtained results were fitted using suitable equilibrium isotherm and kinetic models. The maximum adsorption capacity for Pb2+ ions on DSNP and aminated sample, obtained using Langmuir adsorption isotherm at 298 K, are 18.9 and 47.8 mg g(-1), respectively. Based on the kinetic studies, the adsorption process follows the pseudo second-order model. Thermodynamic parameters showed that the adsorption process is endothermic and spontaneous. In general, the overall adsorption process was improved by modifying starting material with branched PEI modifier by introducing large numbers of amino functionalities having high affinity to cations.",
publisher = "Savez inženjera metalurgije Srbije, Beograd",
journal = "Metallurgical & Materials Engineering",
title = "Eco-friendly elderberry based sorbent for removing pb2+ ions from aqueous solutions",
pages = "401-391",
number = "2",
volume = "28",
doi = "10.30544/710",
url = "conv_948"
}
Bosnjaković, J. M., Bugarčić, M., Cutović, N., Jovanović, A., Manasijević, S., Marinković, A. D.,& Velicković, Z.. (2022). Eco-friendly elderberry based sorbent for removing pb2+ ions from aqueous solutions. in Metallurgical & Materials Engineering
Savez inženjera metalurgije Srbije, Beograd., 28(2), 391-401.
https://doi.org/10.30544/710
conv_948
Bosnjaković JM, Bugarčić M, Cutović N, Jovanović A, Manasijević S, Marinković AD, Velicković Z. Eco-friendly elderberry based sorbent for removing pb2+ ions from aqueous solutions. in Metallurgical & Materials Engineering. 2022;28(2):391-401.
doi:10.30544/710
conv_948 .
Bosnjaković, Jovana M., Bugarčić, Mladen, Cutović, Natalija, Jovanović, Aleksandar, Manasijević, Srecko, Marinković, Aleksandar D., Velicković, Zlate, "Eco-friendly elderberry based sorbent for removing pb2+ ions from aqueous solutions" in Metallurgical & Materials Engineering, 28, no. 2 (2022):391-401,
https://doi.org/10.30544/710 .,
conv_948 .
