High-performance and acid-tolerant polyethylenimine-aminated polyvinyl chloride fibers: Fabrication and application for recovery of platinum from acidic wastewaters

John Kwame Bediako; Sang Won Park; Jong Won Choi; Mung Hee Song; Yeoung Sang Yun

doi:10.1016/j.jece.2018.102839

High-performance and acid-tolerant polyethylenimine-aminated polyvinyl chloride fibers: Fabrication and application for recovery of platinum from acidic wastewaters

John Kwame Bediako, Sang Won Park, Jong Won Choi, Mung Hee Song, Yeoung Sang Yun

Chonbuk National University

Research output: Contribution to journal › Article › peer-review

28 Citations (Scopus)

Abstract

We report the fabrication and application of high-performance and acid-tolerant fibers comprising polyethylenimine (PEI) and polyvinyl chloride (PVC) for platinum recovery from acidic waste solutions. The fibers were fabricated by amination of PVC with PEI and spin-extrusion via phase-inversion mechanism. Factors including the effects of chloride concentration, pH, competing ions, and amount of PEI on the adsorption performance, were studied. The adsorption mechanism was evaluated through XPS analysis, in which electrostatic binding of Pt(IV) and its partially reduced Pt(II) were revealed. The maximum Pt adsorption capacity in 0.1 M HCl was estimated by the Langmuir isotherm model as 410.53 mg/g. The fibers were applicable to Pt recovery from actual metal refining wastewater and demonstrated high efficiency of regeneration through adsorption-desorption cycles.

Original language	English
Article number	102839
Journal	Journal of Environmental Chemical Engineering
Volume	7
Issue number	1
DOIs	https://doi.org/10.1016/j.jece.2018.102839
Publication status	Published - Feb 2019
Externally published	Yes

Keywords

Amination
Industrial wastewater
Polyethylenimine
Polyvinyl chloride
Pt recovery

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10.1016/j.jece.2018.102839

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title = "High-performance and acid-tolerant polyethylenimine-aminated polyvinyl chloride fibers: Fabrication and application for recovery of platinum from acidic wastewaters",

abstract = "We report the fabrication and application of high-performance and acid-tolerant fibers comprising polyethylenimine (PEI) and polyvinyl chloride (PVC) for platinum recovery from acidic waste solutions. The fibers were fabricated by amination of PVC with PEI and spin-extrusion via phase-inversion mechanism. Factors including the effects of chloride concentration, pH, competing ions, and amount of PEI on the adsorption performance, were studied. The adsorption mechanism was evaluated through XPS analysis, in which electrostatic binding of Pt(IV) and its partially reduced Pt(II) were revealed. The maximum Pt adsorption capacity in 0.1 M HCl was estimated by the Langmuir isotherm model as 410.53 mg/g. The fibers were applicable to Pt recovery from actual metal refining wastewater and demonstrated high efficiency of regeneration through adsorption-desorption cycles.",

keywords = "Amination, Industrial wastewater, Polyethylenimine, Polyvinyl chloride, Pt recovery",

author = "Bediako, {John Kwame} and Park, {Sang Won} and Choi, {Jong Won} and Song, {Mung Hee} and Yun, {Yeoung Sang}",

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doi = "10.1016/j.jece.2018.102839",

language = "English",

volume = "7",

journal = "Journal of Environmental Chemical Engineering",

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High-performance and acid-tolerant polyethylenimine-aminated polyvinyl chloride fibers: Fabrication and application for recovery of platinum from acidic wastewaters. / Bediako, John Kwame; Park, Sang Won; Choi, Jong Won et al.
In: Journal of Environmental Chemical Engineering, Vol. 7, No. 1, 102839, 02.2019.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - High-performance and acid-tolerant polyethylenimine-aminated polyvinyl chloride fibers

T2 - Fabrication and application for recovery of platinum from acidic wastewaters

AU - Bediako, John Kwame

AU - Park, Sang Won

AU - Choi, Jong Won

AU - Song, Mung Hee

AU - Yun, Yeoung Sang

PY - 2019/2

Y1 - 2019/2

N2 - We report the fabrication and application of high-performance and acid-tolerant fibers comprising polyethylenimine (PEI) and polyvinyl chloride (PVC) for platinum recovery from acidic waste solutions. The fibers were fabricated by amination of PVC with PEI and spin-extrusion via phase-inversion mechanism. Factors including the effects of chloride concentration, pH, competing ions, and amount of PEI on the adsorption performance, were studied. The adsorption mechanism was evaluated through XPS analysis, in which electrostatic binding of Pt(IV) and its partially reduced Pt(II) were revealed. The maximum Pt adsorption capacity in 0.1 M HCl was estimated by the Langmuir isotherm model as 410.53 mg/g. The fibers were applicable to Pt recovery from actual metal refining wastewater and demonstrated high efficiency of regeneration through adsorption-desorption cycles.

AB - We report the fabrication and application of high-performance and acid-tolerant fibers comprising polyethylenimine (PEI) and polyvinyl chloride (PVC) for platinum recovery from acidic waste solutions. The fibers were fabricated by amination of PVC with PEI and spin-extrusion via phase-inversion mechanism. Factors including the effects of chloride concentration, pH, competing ions, and amount of PEI on the adsorption performance, were studied. The adsorption mechanism was evaluated through XPS analysis, in which electrostatic binding of Pt(IV) and its partially reduced Pt(II) were revealed. The maximum Pt adsorption capacity in 0.1 M HCl was estimated by the Langmuir isotherm model as 410.53 mg/g. The fibers were applicable to Pt recovery from actual metal refining wastewater and demonstrated high efficiency of regeneration through adsorption-desorption cycles.

KW - Amination

KW - Industrial wastewater

KW - Polyethylenimine

KW - Polyvinyl chloride

KW - Pt recovery

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High-performance and acid-tolerant polyethylenimine-aminated polyvinyl chloride fibers: Fabrication and application for recovery of platinum from acidic wastewaters

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Keywords

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