Recovery of Vanadium (V) Oxyanions by a Magnetic Macroporous Copolymer Nanocomposite Sorbent
An amino-functionalized magnetic macroporous copolymer of glycidyl methacrylate (GM) and ethylene glycol (E) dimethacrylate (m-poly(GME)-deta) was synthesized, fully characterized, and used to investigate the adsorption of vanadium (V) oxyanions from aqueous solutions (Ci = 0.5 mM) in a batch system...
Guardado en:
Autores principales: | , , , , , |
---|---|
Formato: | article |
Lenguaje: | EN |
Publicado: |
MDPI AG
2021
|
Materias: | |
Acceso en línea: | https://doaj.org/article/75c8c29f2df24358974c4384dc7e0fb6 |
Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
id |
oai:doaj.org-article:75c8c29f2df24358974c4384dc7e0fb6 |
---|---|
record_format |
dspace |
spelling |
oai:doaj.org-article:75c8c29f2df24358974c4384dc7e0fb62021-11-25T18:21:51ZRecovery of Vanadium (V) Oxyanions by a Magnetic Macroporous Copolymer Nanocomposite Sorbent10.3390/met111117772075-4701https://doaj.org/article/75c8c29f2df24358974c4384dc7e0fb62021-11-01T00:00:00Zhttps://www.mdpi.com/2075-4701/11/11/1777https://doaj.org/toc/2075-4701An amino-functionalized magnetic macroporous copolymer of glycidyl methacrylate (GM) and ethylene glycol (E) dimethacrylate (m-poly(GME)-deta) was synthesized, fully characterized, and used to investigate the adsorption of vanadium (V) oxyanions from aqueous solutions (Ci = 0.5 mM) in a batch system at room temperature (298 K). Pseudo-first-order (PFO), pseudo-second-order (PSO), Elovich, and intra-particle diffusion (IPD) models were used to analyze the kinetic data. The study showed that sorption is rapid, i.e., the sorption half-time is approximately one minute. Initially, the sorption process primarily involved surface sorbent particles, and it was best described by the PSO model. However, after saturation of the surface active sites is attained, the sorption rate decreases significantly because of limitations of the diffusion rate, which is then primarily controlled by the IPD process. The sorption process is favorable in the pH range of 3–6 due to the strong electrostatic interactions between the absorption centers of copolymer and vanadium (V) oxyanions. In the stated pH range, deta absorption centers with two and three protonated N atoms are in equilibrium as studied by quantum chemical modeling. Among V(V) species present in diluted aqueous media, the adsorption of H<sub>2</sub>VO<sub>4</sub><sup>−</sup> ions dominates.Ljiljana SuručićTamara TadićGoran JanjićBojana MarkovićAleksandra NastasovićAntonije OnjiaMDPI AGarticleglycidyl methacrylatequantum chemical modelingEh–pHsilanizationadsorptionvanadateMining engineering. MetallurgyTN1-997ENMetals, Vol 11, Iss 1777, p 1777 (2021) |
institution |
DOAJ |
collection |
DOAJ |
language |
EN |
topic |
glycidyl methacrylate quantum chemical modeling Eh–pH silanization adsorption vanadate Mining engineering. Metallurgy TN1-997 |
spellingShingle |
glycidyl methacrylate quantum chemical modeling Eh–pH silanization adsorption vanadate Mining engineering. Metallurgy TN1-997 Ljiljana Suručić Tamara Tadić Goran Janjić Bojana Marković Aleksandra Nastasović Antonije Onjia Recovery of Vanadium (V) Oxyanions by a Magnetic Macroporous Copolymer Nanocomposite Sorbent |
description |
An amino-functionalized magnetic macroporous copolymer of glycidyl methacrylate (GM) and ethylene glycol (E) dimethacrylate (m-poly(GME)-deta) was synthesized, fully characterized, and used to investigate the adsorption of vanadium (V) oxyanions from aqueous solutions (Ci = 0.5 mM) in a batch system at room temperature (298 K). Pseudo-first-order (PFO), pseudo-second-order (PSO), Elovich, and intra-particle diffusion (IPD) models were used to analyze the kinetic data. The study showed that sorption is rapid, i.e., the sorption half-time is approximately one minute. Initially, the sorption process primarily involved surface sorbent particles, and it was best described by the PSO model. However, after saturation of the surface active sites is attained, the sorption rate decreases significantly because of limitations of the diffusion rate, which is then primarily controlled by the IPD process. The sorption process is favorable in the pH range of 3–6 due to the strong electrostatic interactions between the absorption centers of copolymer and vanadium (V) oxyanions. In the stated pH range, deta absorption centers with two and three protonated N atoms are in equilibrium as studied by quantum chemical modeling. Among V(V) species present in diluted aqueous media, the adsorption of H<sub>2</sub>VO<sub>4</sub><sup>−</sup> ions dominates. |
format |
article |
author |
Ljiljana Suručić Tamara Tadić Goran Janjić Bojana Marković Aleksandra Nastasović Antonije Onjia |
author_facet |
Ljiljana Suručić Tamara Tadić Goran Janjić Bojana Marković Aleksandra Nastasović Antonije Onjia |
author_sort |
Ljiljana Suručić |
title |
Recovery of Vanadium (V) Oxyanions by a Magnetic Macroporous Copolymer Nanocomposite Sorbent |
title_short |
Recovery of Vanadium (V) Oxyanions by a Magnetic Macroporous Copolymer Nanocomposite Sorbent |
title_full |
Recovery of Vanadium (V) Oxyanions by a Magnetic Macroporous Copolymer Nanocomposite Sorbent |
title_fullStr |
Recovery of Vanadium (V) Oxyanions by a Magnetic Macroporous Copolymer Nanocomposite Sorbent |
title_full_unstemmed |
Recovery of Vanadium (V) Oxyanions by a Magnetic Macroporous Copolymer Nanocomposite Sorbent |
title_sort |
recovery of vanadium (v) oxyanions by a magnetic macroporous copolymer nanocomposite sorbent |
publisher |
MDPI AG |
publishDate |
2021 |
url |
https://doaj.org/article/75c8c29f2df24358974c4384dc7e0fb6 |
work_keys_str_mv |
AT ljiljanasurucic recoveryofvanadiumvoxyanionsbyamagneticmacroporouscopolymernanocompositesorbent AT tamaratadic recoveryofvanadiumvoxyanionsbyamagneticmacroporouscopolymernanocompositesorbent AT goranjanjic recoveryofvanadiumvoxyanionsbyamagneticmacroporouscopolymernanocompositesorbent AT bojanamarkovic recoveryofvanadiumvoxyanionsbyamagneticmacroporouscopolymernanocompositesorbent AT aleksandranastasovic recoveryofvanadiumvoxyanionsbyamagneticmacroporouscopolymernanocompositesorbent AT antonijeonjia recoveryofvanadiumvoxyanionsbyamagneticmacroporouscopolymernanocompositesorbent |
_version_ |
1718411266526019584 |