Dual metal Co-anchored nanosheets to catalyze advanced oxidation processes for highly efficient oxytetracycline degradation

Li, Meng; Yan, Jian-Fang; Zhang, Zhao-Xin; Han, Wei; Zhou, Shaoqi; Yeung, King Lun; Chen, Mo

doi:10.1039/d2en00693f

Cited by 5 publications

(2 citation statements)

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“…The catalytic activity of Co 3 O 4 -c with other reported catalytic systems for OTC degradation has been compared in Table . − The result exhibited that Co 3 O 4 -c obtained 82.8% degradation efficiency and 46.4% mineralization rate in 60 min, demonstrating that the Co 3 O 4 -c/PMS system is an excellent catalytic system in OTC degradation.…”

Section: Resultsmentioning

confidence: 99%

Co₃O₄ Nanocubes for Degradation of Oxytetracycline in Wastewater via Peroxymonosulfate Activation

Huang

Jin

et al. 2023

ACS Appl. Nano Mater.

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Despite significant progress being made in the development of cobaltosic oxide or modified cobaltosic oxide nanomaterials in the degradation of organic pollutants, to our knowledge, there are only very few available reports on the crystal facet effect of Co 3 O 4 with different morphologies on peroxymonosulfate activation for oxytetracycline degradation. Herein, we first reported the synthesis of three kinds of Co 3 O 4 nanocomposites with various morphologies, including nanocubes (Co 3 O 4 -c), octahedron (Co 3 O 4 -o), and truncated octahedron (Co 3 O 4 -t), for activating peroxymonosulfate (PMS) in the degradation of oxytetracycline at 30 °C. The detailed physical characterizations illustrated that Co 3 O 4 -c, Co 3 O 4 -o, and Co 3 O 4 -t possessed a uniform morphology of nanocubes, octahedron, and truncated octahedron, with six {100} exposing facets, six {111} exposing facets, and a mixture of eight {111} and six {100} exposing facets, respectively. In particular, the optimal Co 3 O 4 nanocubes (Co 3 O 4 -c) presented the highest catalytic reactivity in the activation of PMS for OTC degradation, with 82.8% degradation efficiency and 46.4% mineralization rate at 30 °C. The DFT results exhibited that the ΔE total of PMS on Co 3 O 4 {100} exposing facets (−23.7 eV) was much lower than that of PMS on Co 3 O 4 exposing {111} facets (−17.2 eV), indicating that PMS activation was more likely to occur at the Co 3 O 4 {100} exposing facets, which was in good accordance with the above experimental conclusion. Overall, the explanation of the crystal facet effects on PMS activation proposes a research orientation for the synthesis of crystal engineering of heterogeneous catalysts on wastewater treatment.

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Section: Resultsmentioning

confidence: 99%

Co₃O₄ Nanocubes for Degradation of Oxytetracycline in Wastewater via Peroxymonosulfate Activation

Huang

Jin

et al. 2023

ACS Appl. Nano Mater.

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“…As shown in Fig. 5e, HEF/UV probably represents the state-ofthe-art catalytic performance with corresponding k values 2.7 to 48.4-fold higher than other systems, 6,15,[36][37][38][39][40][41][42][43][44][45] suggesting the significant synergy between electro-and photo-catalysis. In view of the excellent performance of the HEF/UV tandem system, its feasibility for real industrial antibiotic wastewater treatment was evaluated.…”

Section: Assessment Of Practical Application Potentialmentioning

confidence: 99%

An efficient, green, and residual oxidant-free wastewater treatment technique enabled by coupling a dual-cathode heterogeneous electro-Fenton process and UV radiation in tandem

2023

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Occurrence, risk, and treatment of ciprofloxacin and clarithromycin in drainage

Pamudji

et al. 2023

Chemical Engineering Journal

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Dual metal Co-anchored nanosheets to catalyze advanced oxidation processes for highly efficient oxytetracycline degradation

Abstract: Advanced oxidation processes (AOPs) as an efficient oxidation technology, have been extensively applied for degrading recalcitrant organic contaminants via the generated reactive oxygen species from the activation reaction of catalysts.

Cited by 5 publications

References 86 publications

Co₃O₄ Nanocubes for Degradation of Oxytetracycline in Wastewater via Peroxymonosulfate Activation

Co₃O₄ Nanocubes for Degradation of Oxytetracycline in Wastewater via Peroxymonosulfate Activation

An efficient, green, and residual oxidant-free wastewater treatment technique enabled by coupling a dual-cathode heterogeneous electro-Fenton process and UV radiation in tandem

Occurrence, risk, and treatment of ciprofloxacin and clarithromycin in drainage

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Dual metal Co-anchored nanosheets to catalyze advanced oxidation processes for highly efficient oxytetracycline degradation

Abstract: Advanced oxidation processes (AOPs) as an efficient oxidation technology, have been extensively applied for degrading recalcitrant organic contaminants via the generated reactive oxygen species from the activation reaction of catalysts.

Cited by 5 publications

References 86 publications

Co3O4 Nanocubes for Degradation of Oxytetracycline in Wastewater via Peroxymonosulfate Activation

Co3O4 Nanocubes for Degradation of Oxytetracycline in Wastewater via Peroxymonosulfate Activation

An efficient, green, and residual oxidant-free wastewater treatment technique enabled by coupling a dual-cathode heterogeneous electro-Fenton process and UV radiation in tandem

Occurrence, risk, and treatment of ciprofloxacin and clarithromycin in drainage

Contact Info

Product

Resources

About

Co₃O₄ Nanocubes for Degradation of Oxytetracycline in Wastewater via Peroxymonosulfate Activation

Co₃O₄ Nanocubes for Degradation of Oxytetracycline in Wastewater via Peroxymonosulfate Activation