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The Preparation of Modified Industrial Waste Polyacrylonitrile for the Adsorptive Recovery of Pt(IV) from Acidic Solutions

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Division of Semiconductor and Chemical Engineering, Chonbuk National University, Jeonbuk 54896, Korea
2
Division of Environmental Science and Ecological Engineering, College of Life Science and Biotechnology, Korea University, Seoul 02841, Korea
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Authors to whom correspondence should be addressed.
Academic Editor: Alexander Bismarck
Materials 2016, 9(12), 988; https://doi.org/10.3390/ma9120988
Received: 4 November 2016 / Revised: 23 November 2016 / Accepted: 1 December 2016 / Published: 6 December 2016
Sorption technique is one of the most effective methods for recovering precious metals from wastewater solutions; however, its main drawbacks of the traditional sorbents are the slow kinetics and relatively low sorption capacities. As a solution, thin sorbent fibers have been highlighted because they can lead to fast adsorption kinetics due to their high surface areas and numerous binding sites. In this sense, the applicability of an industrial waste polyacrylonitrile (PAN) textile was examined to recover Pt(IV) from acid solutions. In order to enrich cationic functional groups on the surface of a PAN textile, the textile was chemically modified via polyethylenmine (PEI) coating. Afterwards, using PEI-coated PAN fiber, batch sorption experiments (isotherms and kinetics) and column experiments were conducted to evaluate its sorption performance toward Pt(IV). It was clearly revealed in column experiments that the PEI-coated waste PAN textile (WPAN) has fast kinetics and good performance for Pt(IV) recovery. View Full-Text
Keywords: waste textile; recovery; Pt(IV); surface modification waste textile; recovery; Pt(IV); surface modification
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Yoon, S.I.; Kim, S.; Cho, C.-W.; Yun, Y.-S. The Preparation of Modified Industrial Waste Polyacrylonitrile for the Adsorptive Recovery of Pt(IV) from Acidic Solutions. Materials 2016, 9, 988.

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