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Article Abstract
This study investigates the use of porous structured carbon felt (CF) as a substrate for the preparation a lead dioxide (CF/PbO) anode for the electrochemical oxidation of Rhodamine B (RhB). Compared to traditional titanium-based lead dioxide (Ti/PbO) and graphite sheet-based lead dioxide (GS/PbO) anodes, the CF/PbO anode exhibited superior electrocatalytic activity, achieving a RhB degradation efficiency exceeding 99%. After 10 cycles, the electrocatalytic activity of CF/PbO anode remained robust, with a degradation efficiency of over 97%. Fluorescence spectroscopy, quenching experiments, and electrochemical tests indicate that the electrochemical oxidation behaviour on CF/PbO and GS/PbO anodes was governed by direct electron transfer, while indirect oxidation via OH radicals was pivotal for the Ti/PbO anode. LC-MS analysis identified the intermediates of RhB degradation, contributing to the proposed degradation pathway. This study provides an efficient anode for the electrochemical degradation of organic pollutants in water.
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| http://dx.doi.org/10.1080/09593330.2025.2451783 | DOI Listing |
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