Reductive removal of hexavalent chromium in aqueous solution by magnetic amino-functionalized polymer nanocomposite
Authors
Suručić, Ljiljana T.Sandić, Zvjezdana
Stanković, Aljoša
Janjić, Goran
Tadić, Tamara
Marković, Bojana
Onjia, Antonije
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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 intri...guing, 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.
Keywords:
hexavalent chromium / sorption / magnetic polymer nanocompositeSource:
The Book of Abstracts - XII International conference on Social and Technological Development – STED 2023, June, 15-18, 2023, Trebinje / Zbornik izvoda radova - XII međunarodna konferencija o društvenom i tehnološkom razvoju – STED 2023, 15-18. juni 2023. godine, trebinje, 2023, 118-120Publisher:
- Banja Luka, Republic of Srpska, B&H : University PIM
Funding / projects:
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200026 (University of Belgrade, Institute of Chemistry, Technology and Metallurgy - IChTM) (RS-MESTD-inst-2020-200026)
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200135 (University of Belgrade, Faculty of Technology and Metallurgy) (RS-MESTD-inst-2020-200135)
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IHTMTY - CONF AU - Suručić, Ljiljana T. AU - Sandić, Zvjezdana AU - Stanković, Aljoša AU - Janjić, Goran AU - Tadić, Tamara AU - Marković, Bojana AU - Onjia, Antonije PY - 2023 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/7000 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, Republic of Srpska, B&H : University PIM C3 - The Book of Abstracts - XII International conference on Social and Technological Development – STED 2023, June, 15-18, 2023, Trebinje / Zbornik izvoda radova - XII međunarodna konferencija o društvenom i tehnološkom razvoju – STED 2023, 15-18. juni 2023. godine, trebinje T1 - Reductive removal of hexavalent chromium in aqueous solution by magnetic amino-functionalized polymer nanocomposite SP - 118 EP - 120 UR - https://hdl.handle.net/21.15107/rcub_cer_7000 ER -
@conference{ author = "Suručić, Ljiljana T. and Sandić, Zvjezdana and Stanković, Aljoša and Janjić, Goran and Tadić, Tamara and Marković, Bojana and Onjia, Antonije", 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, Republic of Srpska, B&H : University PIM", journal = "The Book of Abstracts - XII International conference on Social and Technological Development – STED 2023, June, 15-18, 2023, Trebinje / Zbornik izvoda radova - XII međunarodna konferencija o društvenom i tehnološkom razvoju – STED 2023, 15-18. juni 2023. godine, trebinje", title = "Reductive removal of hexavalent chromium in aqueous solution by magnetic amino-functionalized polymer nanocomposite", pages = "118-120", url = "https://hdl.handle.net/21.15107/rcub_cer_7000" }
Suručić, L. T., Sandić, Z., Stanković, A., Janjić, G., Tadić, T., Marković, B.,& Onjia, 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, June, 15-18, 2023, Trebinje / Zbornik izvoda radova - XII međunarodna konferencija o društvenom i tehnološkom razvoju – STED 2023, 15-18. juni 2023. godine, trebinje Banja Luka, Republic of Srpska, B&H : University PIM., 118-120. https://hdl.handle.net/21.15107/rcub_cer_7000
Suručić LT, Sandić Z, Stanković A, Janjić G, Tadić T, Marković B, Onjia 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, June, 15-18, 2023, Trebinje / Zbornik izvoda radova - XII međunarodna konferencija o društvenom i tehnološkom razvoju – STED 2023, 15-18. juni 2023. godine, trebinje. 2023;:118-120. https://hdl.handle.net/21.15107/rcub_cer_7000 .
Suručić, Ljiljana T., Sandić, Zvjezdana, Stanković, Aljoša, Janjić, Goran, Tadić, Tamara, Marković, Bojana, Onjia, Antonije, "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, June, 15-18, 2023, Trebinje / Zbornik izvoda radova - XII međunarodna konferencija o društvenom i tehnološkom razvoju – STED 2023, 15-18. juni 2023. godine, trebinje (2023):118-120, https://hdl.handle.net/21.15107/rcub_cer_7000 .