Please use this identifier to cite or link to this item:
http://doi.org/10.25358/openscience-8717
Authors: | Kisukuri, Camila M. Bednarz, Roland Jan-Reiner Kampf, Christopher Arndt, Sebastian Waldvogel, Siegfried R. |
Title: | Robust and self-cleaning electrochemical production of periodate |
Online publication date: | 2-Feb-2023 |
Year of first publication: | 2022 |
Language: | english |
Abstract: | Periodate, a platform oxidizer, can be electrochemically recycled in a self-cleaning process. Electrosynthesis of periodate is well established at boron-doped diamond (BDD) anodes. However, recovered iodate and other iodo species for recycling can contain traces of organic impurities from previous applications. For the first time, it was shown that the organic impurities do not hamper the electrochemical re-oxidation of used periodate. In a hydroxyl-mediated environment, the organic compounds form CO2 and H2O during the degradation process. This process is often referred to as “cold combustion” and provides orthogonal conditions to periodate synthesis. To demonstrate the strategy, different dyes, pharmaceutically active ingredients, and iodine compounds were added as model contaminations into the process of electrochemical periodate production. UV/Vis spectroscopy, NMR spectroscopy, and mass spectrometry (MS) were used to monitor the degradation of organic molecules, and liquid chromatography-MS was used to control the purity of periodate. As a representative example, dimethyl 5-iodoisophthalate (2 mm), was degraded in 90, 95, and 99 % while generating 0.042, 0.054, and 0.082 kilo equiv. of periodate, respectively. In addition, various organic iodo compounds could be fed into the periodate generation for upcycling such iodo-containing waste, for example, contrast media. |
DDC: | 540 Chemie 540 Chemistry and allied sciences |
Institution: | Johannes Gutenberg-Universität Mainz |
Department: | FB 09 Chemie, Pharmazie u. Geowissensch. |
Place: | Mainz |
ROR: | https://ror.org/023b0x485 |
DOI: | http://doi.org/10.25358/openscience-8717 |
Version: | Published version |
Publication type: | Zeitschriftenaufsatz |
Document type specification: | Scientific article |
License: | CC BY-NC-ND |
Information on rights of use: | https://creativecommons.org/licenses/by-nc-nd/4.0/ |
Journal: | ChemSusChem 15 16 |
Pages or article number: | 202200874 |
Publisher: | John Wiley & Sons, Ltd |
Publisher place: | Weinheim |
Issue date: | 2022 |
ISSN: | 1864-564X |
Publisher DOI: | 10.1002/cssc.202200874 |
Appears in collections: | DFG-491381577-H |
Files in This Item:
File | Description | Size | Format | ||
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![]() | robust_and_selfcleaning_elect-20230131094609153.pdf | 2.64 MB | Adobe PDF | View/Open |