Applications of Ti/TiO<sub>2</sub> nanotube arrays/CeO<sub>2</sub>@PbO<sub>2</sub> and Ti/β-PbO<sub>2</sub>-CuO <sub><i>x</i></sub> electrodes for efficient electrocatalytic degradation of paraquat: cell design and comprehensive mechanistic studies.
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ABSTRACT: Ti/TiO2 nanotube arrays (NTA)/CeO2@PbO2 and Ti/β-PbO2-CuO x electrodes were used for the electrocatalytic degradation of paraquat (PQ2+), a highly toxic and widely used herbicide. The fabricated electrodes were characterized by XPS, SEM, EDS, mapping, XRD and EIS methods. The results show that the performance of the Ti/TiO2 nanotube in the electrocatalytic degradation of PQ2+ is better than that of the Ti/β-PbO2-CuO x electrode. This electrode increases the production of hydroxyl radicals and degradation efficiency. The results show that the highest degradation efficiency of 75% was achieved at pH = 7, a current density of 7.8 mA cm-2 and an initial concent
SUBMITTER: Nematollahi D
PROVIDER: S-EPMC12531992 | biostudies-literature | 2025 Oct
REPOSITORIES: biostudies-literature
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