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Extracting metal ions from water with redox active biopolymer electrodes
Linköping University, Department of Physics, Chemistry and Biology. Linköping University, Faculty of Science & Engineering. University of Addis Ababa, Ethiopia.
Linköping University, Department of Physics, Chemistry and Biology, Biomolecular and Organic Electronics. Linköping University, Faculty of Science & Engineering.
Linköping University, Department of Physics, Chemistry and Biology, Molecular Surface Physics and Nano Science. Linköping University, Faculty of Science & Engineering.
Linköping University, Department of Physics, Chemistry and Biology, Biomolecular and Organic Electronics. Linköping University, Faculty of Science & Engineering.
2015 (English)In: ENVIRONMENTAL SCIENCE-WATER RESEARCH and TECHNOLOGY, ISSN 2053-1400, Vol. 1, no 3, 326-331 p.Article in journal (Refereed) PublishedText
Abstract [en]

Renewable, environmentally friendly and cheap materials like lignin and cellulose have been considered as promising materials for use in energy storage technologies. Here, we report a new application for biopolymer electrodes where they can also be simultaneously used as ion pumps to purify industrial wastewater and drinking water contaminated with toxic metals. A ternary composite film consisting of a conducting polymer polypyrrole (PPy), biopolymer lignin (LG) and anthraquinonesulfonate (AQS) was synthesized by one-step galvanostatic polymerization from an aqueous electrolyte solution. X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy-energy dispersive X-ray spectroscopy (SEM-EDX) techniques revealed that lead ions can be extracted from a neutral aqueous solution containing lead ions by applying a potential, and can be released into another solution by reversing the polarity of the applied potential. Electrochemical quartz crystal microbalance was used to quantify the amount of metal ions that can be extracted and released.

Place, publisher, year, edition, pages
ROYAL SOC CHEMISTRY , 2015. Vol. 1, no 3, 326-331 p.
National Category
Biological Sciences Physical Sciences
Identifiers
URN: urn:nbn:se:liu:diva-124144DOI: 10.1039/c4ew00097hISI: 000366892000009OAI: oai:DiVA.org:liu-124144DiVA: diva2:896759
Available from: 2016-01-22 Created: 2016-01-19 Last updated: 2016-01-22

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Molla, ShimelisElfwing, AndersSkallberg, AndreasInganäs, Olle
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Department of Physics, Chemistry and BiologyFaculty of Science & EngineeringBiomolecular and Organic ElectronicsMolecular Surface Physics and Nano Science
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