期刊论文

Wang, M;Wang, HQ

英文

Applied Surface Science

0169-4332

2024

654

159482

10.1016/j.apsusc.2024.159482

The details of the MMCD method to capture uranium from aqueous solution are displayed in Fig. 1a. In original state, ions are randomly dispersed in aqueous solution. In step one, when a bias is applied, cations (i.e., UO22+) transport towards the surface of negatively charged RGX cathode under the action of electrical field. In step two, the U(VI) ions could form coordination with the O-containing groups in the structure of RGX cathode. Meanwhile, the negatively charged COO– group can act as

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Electro/photo/photoelectro-catalytic technologies have shown huge potential for U(VI) capture. However, current researches mainly focus on designing various electrode materials, but rarely on the significance of structure match and cooperative working mechanism of anode and cathode for U(VI) removal. Here, a multi-mechanism co-driven (MMCD) photoelectrochemical method, involving electrosorption, micro electric-field attraction, coordination and photoelectrocatalytic reduction, was originally proposed. Through purposeful design of an advanced asymmetrical photoelectrocatalytic system, consistin...