CNT Microtubes with Entrapped Fe ₃ O ₄ Nanoparticles Remove Micropollutants through a Heterogeneous Electro‐Fenton Process at Neutral pH

Catalyst-coated carbon electrodes require two preparation stages: electrode assembly using and polymeric binders subsequent catalyst immobilization on the porous carbons electrode. Such conventional coating methods several steps, which is time-, chemical-, energy-consuming. Also, can impair porosity block catalytic sites of final electrodes. This study introduces a novel one-pot synthesis method in Fe3O4 nanoparticles are entrapped within multi-walled nanotube network, latter being templated with microtubular geometry. microtubes (CMT) represent standalone geometry, serving as binder-free for an energy-efficient heterogeneous electro-Fenton (HEF) process. Fe3O4-containing CMTs remove carbamazepine (CBZ), frequently detected pharmaceutical micropollutant water bodies. While almost all literature reports degradation at acidic conditions requiring use acid, this material system functions pH 7 ± 0.3 lengthy reusability. The remarkable mineralization total oxidized CBZ emerges from confinement oxidation by-products CMTs’ 3D framework, where unselective radicals formed once electro-generated H2O2 reacts embedded Fe3O4. Additionally, network prevents catalysts leaching environments because increased local during electrolysis.