TY  - CONF
AU  - Knežević, Nataša
AU  - Jovanović, Aleksandar
AU  - Salih, Rabab
AU  - Veličković, Zlate
AU  - Popović, Ana
AU  - Batinić, Petar
AU  - Marinković, Aleksandar
AU  - Gržetić, Jelena
PY  - 2022
UR  - https://ritnms.itnms.ac.rs/handle/123456789/1012
AB  - The unique chemical structure of lignin shows the possibility of its application as a basic material for
the sorption of various pollutants from water. In this paper, the newly synthesized porous lignin-based
material was used to remove Cr(VI) ions. Modified lignin microspheres (LMS) were synthesized by the
process of inverse copolymerization of kraft lignin with poly (ethylene-imine), and amino modified
iron oxide (magnetite) using epoxy-functionalized cross-linker. The shape of obtained adsorption
material was partially spherical to spherical. The functionalization was performed to improve the
pollutant removal capacity. Structural and surface characteristics of the LMS microspheres were
characterized by Brunauer-Emmett-Teller method (BET), Fourier transform infrared spectroscopy
(FTIR), scanning electron microscopy (SEM) and point of zero charge pH (pHPZC). The maximum
adsorption capacity for oxyanion Cr(VI) was 77.024 mg g-1obtained by Langmuir adsorption isotherm
at 35°C. Based on kinetic studies, the adsorption process follows a pseudo second-order model.
Thermodynamic parameters have shown that the adsorption process is endothermic and spontaneous.
LMS is an environmentally friendly, cost-effective and therefore promising adsorbent for the removal
of Cr(VI) with efficient adsorption and reusability.
PB  - Bor : University of Belgrade, Technical Faculty in Bor
C3  - 29th International Conference Ecological truth & Environmental Research (EcoTER'22)
T1  - Modified lignin-based microspheres as a green sorbent for the removal of chromium ions
EP  - 185
SP  - 180
ER  - 

@conference{
author = "Knežević, Nataša and Jovanović, Aleksandar and Salih, Rabab and Veličković, Zlate and Popović, Ana and Batinić, Petar and Marinković, Aleksandar and Gržetić, Jelena",
year = "2022",
abstract = "The unique chemical structure of lignin shows the possibility of its application as a basic material for
the sorption of various pollutants from water. In this paper, the newly synthesized porous lignin-based
material was used to remove Cr(VI) ions. Modified lignin microspheres (LMS) were synthesized by the
process of inverse copolymerization of kraft lignin with poly (ethylene-imine), and amino modified
iron oxide (magnetite) using epoxy-functionalized cross-linker. The shape of obtained adsorption
material was partially spherical to spherical. The functionalization was performed to improve the
pollutant removal capacity. Structural and surface characteristics of the LMS microspheres were
characterized by Brunauer-Emmett-Teller method (BET), Fourier transform infrared spectroscopy
(FTIR), scanning electron microscopy (SEM) and point of zero charge pH (pHPZC). The maximum
adsorption capacity for oxyanion Cr(VI) was 77.024 mg g-1obtained by Langmuir adsorption isotherm
at 35°C. Based on kinetic studies, the adsorption process follows a pseudo second-order model.
Thermodynamic parameters have shown that the adsorption process is endothermic and spontaneous.
LMS is an environmentally friendly, cost-effective and therefore promising adsorbent for the removal
of Cr(VI) with efficient adsorption and reusability.",
publisher = "Bor : University of Belgrade, Technical Faculty in Bor",
journal = "29th International Conference Ecological truth & Environmental Research (EcoTER'22)",
title = "Modified lignin-based microspheres as a green sorbent for the removal of chromium ions",
pages = "185-180"
}

Knežević, N., Jovanović, A., Salih, R., Veličković, Z., Popović, A., Batinić, P., Marinković, A.,& Gržetić, J.. (2022). Modified lignin-based microspheres as a green sorbent for the removal of chromium ions. in 29th International Conference Ecological truth & Environmental Research (EcoTER'22)
Bor : University of Belgrade, Technical Faculty in Bor., 180-185.

Knežević N, Jovanović A, Salih R, Veličković Z, Popović A, Batinić P, Marinković A, Gržetić J. Modified lignin-based microspheres as a green sorbent for the removal of chromium ions. in 29th International Conference Ecological truth & Environmental Research (EcoTER'22). 2022;:180-185..

Knežević, Nataša, Jovanović, Aleksandar, Salih, Rabab, Veličković, Zlate, Popović, Ana, Batinić, Petar, Marinković, Aleksandar, Gržetić, Jelena, "Modified lignin-based microspheres as a green sorbent for the removal of chromium ions" in 29th International Conference Ecological truth & Environmental Research (EcoTER'22) (2022):180-185.