One-Step Calcination of Ni/Co/Mn Ternary Catalysts from Spent Lithium-Ion Batteries for Iopamidol Degradation Via Peroxymonosulfate Activation DOI
Wei Hong,

Ruijie Teng,

Junqi Song

et al.

Published: Jan. 1, 2023

The Ni/Co/Mn ternary catalysts were fabricated through one-step calcination process using the cathode material (CM) derived from spent lithium-ion batteries. morphological and structural properties of catalysts, calcined at various temperatures (labeled as CM-450, CM-550, CM-650), examined. In comparison to CM-450 CM-650 demonstrated lowest concentration metal leaching, excellent stability, efficient activation performance for peroxymonosulfate (PMS) in degradation iopamidol (IPM). An IPM rate 8.0 mg/L was achieved within 20 minutes, reaching 100%. Furthermore, a combination free radical quenching experiments, electron paramagnetic resonance (EPR), electrochemical characterization analysis indicated that both pathways (OH, SO4•−, O2–) non-radical (1O2, transfer) involved CM-650/PMS system. presence Ni2+, Co2+, Mn4+ on surface facilitated PMS, their conversion valence states exhibited certain synergistic effect. Additionally, outstanding cycling with an exceeding 80% after three cycles. Liquid chromatography-mass spectrometry (LC-MS) density functional theory (DFT) calculations employed analyze intermediates reaction pathways. ECOSAR some posed ecological risks magnitude. summary, presents sustainable, cost-effective, environmentally friendly approach converting waste materials into valuable, high-performance catalysts.

Language: Английский

One-Step Calcination of Ni/Co/Mn Ternary Catalysts from Spent Lithium-Ion Batteries for Iopamidol Degradation Via Peroxymonosulfate Activation DOI
Wei Hong,

Ruijie Teng,

Junqi Song

et al.

Published: Jan. 1, 2023

The Ni/Co/Mn ternary catalysts were fabricated through one-step calcination process using the cathode material (CM) derived from spent lithium-ion batteries. morphological and structural properties of catalysts, calcined at various temperatures (labeled as CM-450, CM-550, CM-650), examined. In comparison to CM-450 CM-650 demonstrated lowest concentration metal leaching, excellent stability, efficient activation performance for peroxymonosulfate (PMS) in degradation iopamidol (IPM). An IPM rate 8.0 mg/L was achieved within 20 minutes, reaching 100%. Furthermore, a combination free radical quenching experiments, electron paramagnetic resonance (EPR), electrochemical characterization analysis indicated that both pathways (OH, SO4•−, O2–) non-radical (1O2, transfer) involved CM-650/PMS system. presence Ni2+, Co2+, Mn4+ on surface facilitated PMS, their conversion valence states exhibited certain synergistic effect. Additionally, outstanding cycling with an exceeding 80% after three cycles. Liquid chromatography-mass spectrometry (LC-MS) density functional theory (DFT) calculations employed analyze intermediates reaction pathways. ECOSAR some posed ecological risks magnitude. summary, presents sustainable, cost-effective, environmentally friendly approach converting waste materials into valuable, high-performance catalysts.

Language: Английский

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