Silver(I) Adsorption on Magnetic Macroporous Chelating Polymer
2018
Аутори
Marković, BojanaSandić, Zvjezdana
Stefanović, Ivan
Džunuzović, Jasna
Onjia, Antonije
Nastasović, Aleksandra
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Environmental poisoning due to the emission of waste silver electrical and electronic
industries, jewelry, photography and dentistry, in the last few decades has been of growing concern. The most effective methods for silver removal from aqueous media include electrolysis, precipitation, ion-exchange and adsorption. Highly crosslinked GMA-based polymers are chemically and mechanically stable materials containing reactive epoxy groups susceptible to undergoing functionalization, thus allowing the attachment of complexing agent selective for a specific metal ion.
In this presentation, macroporous chelating glycidyl methacrylate and ethylene glycol
dimethacrylate copolymer functionalized with diethylene triamine (PGME-deta) was tested as Ag(I)
sorbent from aqueous solutions. The sorption kinetics was studied in batch experimental mode and
static conditions at room temperature and different initial Ag(I) concentration. The results were fitted to surface-reaction (pseudo-first and pseu...do-second-order) and particle diffusion-based (intraparticle diffusion and Boyd’s) kinetic models.
The pseudo-second-order model provided the best fit for the kinetic data, with a definite
influence of pore diffusion. The maximum sorption capacity at pH 6 of 2.25 mmol g-1 (240 mg g-1)
was reached after 30 minutes. Equilibrium data were analyzed with Langmuir, Freundlich and Temkin adsorption isotherm models.
Кључне речи:
Chelating polymer / silver(I) adsorption / kinetic models / adsorption isothermsИзвор:
Book of abstracts - 25th Congress of Chemists and Technologists of Macedonia, 19–22 September 2018 Metropol Lake Resort Ohrid, R. Macedonia, 2018, 222-222Издавач:
- Society of Chemists and Technologists of Macedonia
Финансирање / пројекти:
- Синтеза и карактеризација нових функционалних полимера и полимерних нанокомпозита (RS-MESTD-Basic Research (BR or ON)-172062)
- Нове технологије за мониторинг и заштиту животног окружења од штетних хемијских супстанци и радијационог оптерећења (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-43009)
Институција/група
IHTMTY - CONF AU - Marković, Bojana AU - Sandić, Zvjezdana AU - Stefanović, Ivan AU - Džunuzović, Jasna AU - Onjia, Antonije AU - Nastasović, Aleksandra PY - 2018 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/6176 AB - Environmental poisoning due to the emission of waste silver electrical and electronic industries, jewelry, photography and dentistry, in the last few decades has been of growing concern. The most effective methods for silver removal from aqueous media include electrolysis, precipitation, ion-exchange and adsorption. Highly crosslinked GMA-based polymers are chemically and mechanically stable materials containing reactive epoxy groups susceptible to undergoing functionalization, thus allowing the attachment of complexing agent selective for a specific metal ion. In this presentation, macroporous chelating glycidyl methacrylate and ethylene glycol dimethacrylate copolymer functionalized with diethylene triamine (PGME-deta) was tested as Ag(I) sorbent from aqueous solutions. The sorption kinetics was studied in batch experimental mode and static conditions at room temperature and different initial Ag(I) concentration. The results were fitted to surface-reaction (pseudo-first and pseudo-second-order) and particle diffusion-based (intraparticle diffusion and Boyd’s) kinetic models. The pseudo-second-order model provided the best fit for the kinetic data, with a definite influence of pore diffusion. The maximum sorption capacity at pH 6 of 2.25 mmol g-1 (240 mg g-1) was reached after 30 minutes. Equilibrium data were analyzed with Langmuir, Freundlich and Temkin adsorption isotherm models. PB - Society of Chemists and Technologists of Macedonia C3 - Book of abstracts - 25th Congress of Chemists and Technologists of Macedonia, 19–22 September 2018 Metropol Lake Resort Ohrid, R. Macedonia T1 - Silver(I) Adsorption on Magnetic Macroporous Chelating Polymer SP - 222 EP - 222 UR - https://hdl.handle.net/21.15107/rcub_cer_6176 ER -
@conference{ author = "Marković, Bojana and Sandić, Zvjezdana and Stefanović, Ivan and Džunuzović, Jasna and Onjia, Antonije and Nastasović, Aleksandra", year = "2018", abstract = "Environmental poisoning due to the emission of waste silver electrical and electronic industries, jewelry, photography and dentistry, in the last few decades has been of growing concern. The most effective methods for silver removal from aqueous media include electrolysis, precipitation, ion-exchange and adsorption. Highly crosslinked GMA-based polymers are chemically and mechanically stable materials containing reactive epoxy groups susceptible to undergoing functionalization, thus allowing the attachment of complexing agent selective for a specific metal ion. In this presentation, macroporous chelating glycidyl methacrylate and ethylene glycol dimethacrylate copolymer functionalized with diethylene triamine (PGME-deta) was tested as Ag(I) sorbent from aqueous solutions. The sorption kinetics was studied in batch experimental mode and static conditions at room temperature and different initial Ag(I) concentration. The results were fitted to surface-reaction (pseudo-first and pseudo-second-order) and particle diffusion-based (intraparticle diffusion and Boyd’s) kinetic models. The pseudo-second-order model provided the best fit for the kinetic data, with a definite influence of pore diffusion. The maximum sorption capacity at pH 6 of 2.25 mmol g-1 (240 mg g-1) was reached after 30 minutes. Equilibrium data were analyzed with Langmuir, Freundlich and Temkin adsorption isotherm models.", publisher = "Society of Chemists and Technologists of Macedonia", journal = "Book of abstracts - 25th Congress of Chemists and Technologists of Macedonia, 19–22 September 2018 Metropol Lake Resort Ohrid, R. Macedonia", title = "Silver(I) Adsorption on Magnetic Macroporous Chelating Polymer", pages = "222-222", url = "https://hdl.handle.net/21.15107/rcub_cer_6176" }
Marković, B., Sandić, Z., Stefanović, I., Džunuzović, J., Onjia, A.,& Nastasović, A.. (2018). Silver(I) Adsorption on Magnetic Macroporous Chelating Polymer. in Book of abstracts - 25th Congress of Chemists and Technologists of Macedonia, 19–22 September 2018 Metropol Lake Resort Ohrid, R. Macedonia Society of Chemists and Technologists of Macedonia., 222-222. https://hdl.handle.net/21.15107/rcub_cer_6176
Marković B, Sandić Z, Stefanović I, Džunuzović J, Onjia A, Nastasović A. Silver(I) Adsorption on Magnetic Macroporous Chelating Polymer. in Book of abstracts - 25th Congress of Chemists and Technologists of Macedonia, 19–22 September 2018 Metropol Lake Resort Ohrid, R. Macedonia. 2018;:222-222. https://hdl.handle.net/21.15107/rcub_cer_6176 .
Marković, Bojana, Sandić, Zvjezdana, Stefanović, Ivan, Džunuzović, Jasna, Onjia, Antonije, Nastasović, Aleksandra, "Silver(I) Adsorption on Magnetic Macroporous Chelating Polymer" in Book of abstracts - 25th Congress of Chemists and Technologists of Macedonia, 19–22 September 2018 Metropol Lake Resort Ohrid, R. Macedonia (2018):222-222, https://hdl.handle.net/21.15107/rcub_cer_6176 .