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- W4309779746 abstract "• A new green method for uranium removal via photocatalytic produced H 2 O 2 . • Uranium can be recovered without sacrificial agent under air. • Uranium can be removed from basic solution under solar energy. • Removal rate from simulated uranium-containing basic effluent reaches to 95.5%. Photocatalytic uranium removal from radioactive wastewater is considered as a green method to prevent environment contamination. However, almost all photocatalysts are used in anaerobic condition or with extra sacrificial agent. Herein, we report a strategy for non-sacrificial photocatalytic uranium removal from basic solution under air by photocatalyst TT-Por COF-Ni, which was synthesized via Aldamine reaction between 5,10,15,20-(tetra-4-aminophenyl)porphyrin-Ni (TPP-Ni) and thieno[3,2-b]thiophene-2,5-dicarbaldehyde (TT). Hydrogen peroxide (H 2 O 2 ) is generated by photocatalytic reduction of O 2 , and followed by formation of metastudtite via in situ reaction with uranyl. As a result, uranium can be photo-driven removed to 1 ppm residual in basic solution under air atmosphere without adding extra sacrificial agent, and uranium removal reached to 97.1% upon solar illumination. Remarkably, our strategy can recover uranium with 95.5% removal rate from simulated uranium-containing effluent from nuclear fuel cycle in basic condition, which suggests a potential for practical application." @default.
- W4309779746 created "2022-11-29" @default.
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- W4309779746 date "2023-02-01" @default.
- W4309779746 modified "2023-10-14" @default.
- W4309779746 title "Photocatalytic uranium removal from basic effluent by porphyrin-Ni COF as the photocatalyst" @default.
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- W4309779746 doi "https://doi.org/10.1016/j.cej.2022.140378" @default.
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