Reductive removal of hexavalent chromium in aqueous solution by magnetic amino-functionalized polymer nanocomposite
Аутори
Suručić, LjiljanaSandić, Zvjezdana
Stanković, Aljoša
Janjić, Goran
Tadić, Tamara
Marković, Bojana
Onjia, Antonije
Nastasović, Aleksandra
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
The contamination of water with chromium is a global issue that is especially
severe in developing countries with intensive mining and heavy industry (South
Africa, Pakistan, and India) [1,2]. Trivalent Cr(III) and hexavalent Cr(VI) are the
most common forms found in effluent water. Whereas trivalent chromium is a
micronutrient (25–35 g/day) involved in the metabolism of lipids and carbohydrates
[3,4], hexavalent chromium is exceedingly toxic, teratogenic, and mutagenic.
Particularly concerning are its high solubility in water, mobility in detritus, and
potential for bioaccumulation in living tissues. Due to these factors, hexavalent
chromium has been the subject of numerous studies, especially its removal from
effluent [5,6]. These studies have demonstrated that sorption is a highly effective and
relatively simple technique for chromium removal from wastewater. In terms of this,
magnetic heavy metals nanosorbents derived from inorganic compounds and
polymers [7-9] are incr...edibly intriguing, because they could have been readily
extracted from the mixture using an external magnetic field. The sorption
investigation of hexavalent chromium in aqueous solutions on the magnetic aminofunctionalized polymer nanocomposite based on glycidyl methacrylate, m-PGMA
revealed its highly selectivity and efficiency. [10,11]. The binding mechanism of hexavalent chromium ions onto m-PGMA was investigated using kinetic,
equilibrium, and thermodynamic experiments as well as molecular modeling
techniques (theoretical quantum-chemical calculations) [12-15]. It was observed that
the process occurs in two phases. In the first phase, electrostatic interactions attract
hexavalent chromium ions to the surface of the sorbent via the active sites (amino
and APTMS groups). Cr(VI) is then converted to Cr(III) ions, which can coordinate
with amino or hydroxyl groups on the surface of the sorbent [16]. The trivalent
chromium ions that persist in the solution or on the surface of the sorbent are less
hazardous than the initial hexavalent form. The application of m-PGMA sorbent
enables the transformation of the toxic form of chromium into a less hazardous form,
which is significant due to the possibility of sorbent regeneration and the subsequent
processing of the solution following sorption.
Кључне речи:
hexavalent chromium / sorption / magnetic polymer nanocompositeИзвор:
The Book of Abstracts / XII International Conference on Social and Technological Development – STED 2023, Trebinje, June, 15-18, 2023, 2023, 118-120Издавач:
- Banja Luka : University PIM
Финансирање / пројекти:
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200026 (Универзитет у Београду, Институт за хемију, технологију и металургију - ИХТМ) (RS-MESTD-inst-2020-200026)
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200135 (Универзитет у Београду, Технолошко-металуршки факултет) (RS-MESTD-inst-2020-200135)
Институција/група
Tehnološko-metalurški fakultetTY - CONF AU - Suručić, Ljiljana AU - Sandić, Zvjezdana AU - Stanković, Aljoša AU - Janjić, Goran AU - Tadić, Tamara AU - Marković, Bojana AU - Onjia, Antonije AU - Nastasović, Aleksandra PY - 2023 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7045 AB - The contamination of water with chromium is a global issue that is especially severe in developing countries with intensive mining and heavy industry (South Africa, Pakistan, and India) [1,2]. Trivalent Cr(III) and hexavalent Cr(VI) are the most common forms found in effluent water. Whereas trivalent chromium is a micronutrient (25–35 g/day) involved in the metabolism of lipids and carbohydrates [3,4], hexavalent chromium is exceedingly toxic, teratogenic, and mutagenic. Particularly concerning are its high solubility in water, mobility in detritus, and potential for bioaccumulation in living tissues. Due to these factors, hexavalent chromium has been the subject of numerous studies, especially its removal from effluent [5,6]. These studies have demonstrated that sorption is a highly effective and relatively simple technique for chromium removal from wastewater. In terms of this, magnetic heavy metals nanosorbents derived from inorganic compounds and polymers [7-9] are incredibly intriguing, because they could have been readily extracted from the mixture using an external magnetic field. The sorption investigation of hexavalent chromium in aqueous solutions on the magnetic aminofunctionalized polymer nanocomposite based on glycidyl methacrylate, m-PGMA revealed its highly selectivity and efficiency. [10,11]. The binding mechanism of hexavalent chromium ions onto m-PGMA was investigated using kinetic, equilibrium, and thermodynamic experiments as well as molecular modeling techniques (theoretical quantum-chemical calculations) [12-15]. It was observed that the process occurs in two phases. In the first phase, electrostatic interactions attract hexavalent chromium ions to the surface of the sorbent via the active sites (amino and APTMS groups). Cr(VI) is then converted to Cr(III) ions, which can coordinate with amino or hydroxyl groups on the surface of the sorbent [16]. The trivalent chromium ions that persist in the solution or on the surface of the sorbent are less hazardous than the initial hexavalent form. The application of m-PGMA sorbent enables the transformation of the toxic form of chromium into a less hazardous form, which is significant due to the possibility of sorbent regeneration and the subsequent processing of the solution following sorption. PB - Banja Luka : University PIM C3 - The Book of Abstracts / XII International Conference on Social and Technological Development – STED 2023, Trebinje, June, 15-18, 2023 T1 - Reductive removal of hexavalent chromium in aqueous solution by magnetic amino-functionalized polymer nanocomposite EP - 120 SP - 118 UR - https://hdl.handle.net/21.15107/rcub_technorep_7045 ER -
@conference{ author = "Suručić, Ljiljana and Sandić, Zvjezdana and Stanković, Aljoša and Janjić, Goran and Tadić, Tamara and Marković, Bojana and Onjia, Antonije and Nastasović, Aleksandra", year = "2023", abstract = "The contamination of water with chromium is a global issue that is especially severe in developing countries with intensive mining and heavy industry (South Africa, Pakistan, and India) [1,2]. Trivalent Cr(III) and hexavalent Cr(VI) are the most common forms found in effluent water. Whereas trivalent chromium is a micronutrient (25–35 g/day) involved in the metabolism of lipids and carbohydrates [3,4], hexavalent chromium is exceedingly toxic, teratogenic, and mutagenic. Particularly concerning are its high solubility in water, mobility in detritus, and potential for bioaccumulation in living tissues. Due to these factors, hexavalent chromium has been the subject of numerous studies, especially its removal from effluent [5,6]. These studies have demonstrated that sorption is a highly effective and relatively simple technique for chromium removal from wastewater. In terms of this, magnetic heavy metals nanosorbents derived from inorganic compounds and polymers [7-9] are incredibly intriguing, because they could have been readily extracted from the mixture using an external magnetic field. The sorption investigation of hexavalent chromium in aqueous solutions on the magnetic aminofunctionalized polymer nanocomposite based on glycidyl methacrylate, m-PGMA revealed its highly selectivity and efficiency. [10,11]. The binding mechanism of hexavalent chromium ions onto m-PGMA was investigated using kinetic, equilibrium, and thermodynamic experiments as well as molecular modeling techniques (theoretical quantum-chemical calculations) [12-15]. It was observed that the process occurs in two phases. In the first phase, electrostatic interactions attract hexavalent chromium ions to the surface of the sorbent via the active sites (amino and APTMS groups). Cr(VI) is then converted to Cr(III) ions, which can coordinate with amino or hydroxyl groups on the surface of the sorbent [16]. The trivalent chromium ions that persist in the solution or on the surface of the sorbent are less hazardous than the initial hexavalent form. The application of m-PGMA sorbent enables the transformation of the toxic form of chromium into a less hazardous form, which is significant due to the possibility of sorbent regeneration and the subsequent processing of the solution following sorption.", publisher = "Banja Luka : University PIM", journal = "The Book of Abstracts / XII International Conference on Social and Technological Development – STED 2023, Trebinje, June, 15-18, 2023", title = "Reductive removal of hexavalent chromium in aqueous solution by magnetic amino-functionalized polymer nanocomposite", pages = "120-118", url = "https://hdl.handle.net/21.15107/rcub_technorep_7045" }
Suručić, L., Sandić, Z., Stanković, A., Janjić, G., Tadić, T., Marković, B., Onjia, A.,& Nastasović, A.. (2023). Reductive removal of hexavalent chromium in aqueous solution by magnetic amino-functionalized polymer nanocomposite. in The Book of Abstracts / XII International Conference on Social and Technological Development – STED 2023, Trebinje, June, 15-18, 2023 Banja Luka : University PIM., 118-120. https://hdl.handle.net/21.15107/rcub_technorep_7045
Suručić L, Sandić Z, Stanković A, Janjić G, Tadić T, Marković B, Onjia A, Nastasović A. Reductive removal of hexavalent chromium in aqueous solution by magnetic amino-functionalized polymer nanocomposite. in The Book of Abstracts / XII International Conference on Social and Technological Development – STED 2023, Trebinje, June, 15-18, 2023. 2023;:118-120. https://hdl.handle.net/21.15107/rcub_technorep_7045 .
Suručić, Ljiljana, Sandić, Zvjezdana, Stanković, Aljoša, Janjić, Goran, Tadić, Tamara, Marković, Bojana, Onjia, Antonije, Nastasović, Aleksandra, "Reductive removal of hexavalent chromium in aqueous solution by magnetic amino-functionalized polymer nanocomposite" in The Book of Abstracts / XII International Conference on Social and Technological Development – STED 2023, Trebinje, June, 15-18, 2023 (2023):118-120, https://hdl.handle.net/21.15107/rcub_technorep_7045 .