Cu embedded Co oxides and its fenton-like activity for metronidazole degradation over a wide pH range: Active sites of Cu doped Co3O4 with {112} exposed facet
CHEMICAL ENGINEERING JOURNAL(2022)
Abstract
Cu-Co bimetallic catalysts show excellent performance for metronidazole (MNZ) degradation in a Fenton-like reaction, a near complete conversion was achieved. Cu doped Co3O4 with {1 1 2} exposed facet has proved to promote the oxidation of Co2+ to Co3+ in Cu-CoOx. The surface Cu+ on {1 1 2}-enclosed Co3O4 was identified as the main active species for the reaction and its concentration counts a lot in performance. The Cu+ with raised d-band center under Co-Cu synergistic interaction has boosted the dissociation of H2O2 into & BULL;OH with stronger electron donation to H2O2 and elongated O-O bond. Meanwhile, the accelerated redox process especially for Cu on the {1 1 2} facet of Co3O4 with a faster electron transfer rate also contributed to the excellent performance. The optimization of operational parameters of Co1Cu2 in MNZ removal with investigation of degradation pathway were also thoroughly performed.
MoreTranslated text
Key words
Cu-Co interaction, Fenton-like reaction, Metronidazole degradation, Hydroxyl radicals, {112}-enclosed Cu-Co3O4
AI Read Science
Must-Reading Tree
Example
![](https://originalfileserver.aminer.cn/sys/aminer/pubs/mrt_preview.jpeg)
Generate MRT to find the research sequence of this paper
Chat Paper
Summary is being generated by the instructions you defined