Please use this identifier to cite or link to this item: https://doi.org/10.1039/d1ra01121a
Title: A systematic investigation on synergistic electroplating and capacitive removal of Pb2+ from artificial industrial waste water
Authors: Gui, Yang 
Blackwood, Daniel J 
Keywords: Science & Technology
Physical Sciences
Chemistry, Multidisciplinary
Chemistry
HEAVY-METAL IONS
DRINKING-WATER
LEAD IONS
AQUEOUS-SOLUTIONS
CARBON
DESALINATION
DEIONIZATION
ELECTROSORPTION
ELECTRODE
RECOVERY
Issue Date: 14-Apr-2021
Publisher: ROYAL SOC CHEMISTRY
Citation: Gui, Yang, Blackwood, Daniel J (2021-04-14). A systematic investigation on synergistic electroplating and capacitive removal of Pb2+ from artificial industrial waste water. RSC ADVANCES 11 (21) : 12877-12884. ScholarBank@NUS Repository. https://doi.org/10.1039/d1ra01121a
Abstract: A capacitive deionization cell designed with symmetric activated carbon electrodes was demonstrated to be able to successfully reduce wastewater Pb2+concentrations to below the 5 ppm statuary limited for discharge into public sewers. The investigation found that the removal efficiency shows a maximum of 98% with an initial Pb2+concentration of 100 ppm under an optimized voltage of 1.3 V. Although the reversibility of the process was poor during the first charge/discharge cycle, in part due to cathodic electrodeposition of lead hydroxycarbonates, this was improved by acidification of the electrolyte and subsequent cycles showed good reversibility. Finally, it was demonstrated that Na+ions, with 50% removal efficiency and 100% reversibility, do not interfere with either the removal rate of Pb2+ions or the reversibility of this process, providing a new angle on desalination applications for the system.
Source Title: RSC ADVANCES
URI: https://scholarbank.nus.edu.sg/handle/10635/226588
ISSN: 2046-2069
DOI: 10.1039/d1ra01121a
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