Catalytic oxidation activation of peroxymonosulfate over Fe-Co bimetallic oxides for flurbiprofen degradation

Chunsheng, Ding; Lei, Jia; Cai, Zhiyue; Gao, Mengying; Zou, Zhaozheng; Li, Yuanfeng; Deng, Jing

doi:10.1007/s11356-023-25914-9

Cited by 5 publications

(3 citation statements)

References 46 publications

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“…19,20 Previous studies found that cobalt ion (Co 2+ ) was the most active transition metal for PMS activation. 21 Many Co-based catalysts were developed toward PMS activation for organic degradation such as CoNi 3 O 4 , 22 FeCo 2 O 4 , 3 and Co,Mn-MOFs. 23 stability.…”

Section: Introductionmentioning

confidence: 99%

“…With the rapid development of the pharmaceutical industry, some emerging organic pollutants such as antibiotics and phenolic compounds have brought about serious water pollution problems. , For example, trace amounts of antibiotic residues in water will negatively affect antibiotic effectiveness and human public health. , Due to the stability of antibiotics, traditional methods such as biological degradation and adsorption are less effective to completely remove them . Advanced oxidation processes (AOPs) are known to be the most effective method to degrade biorecalcitrant organic compounds .…”

Section: Introductionmentioning

confidence: 99%

“…Previous studies found that cobalt ion (Co 2+ ) was the most active transition metal for PMS activation . Many Co-based catalysts were developed toward PMS activation for organic degradation such as CoNi 3 O 4 , FeCo 2 O 4 , and Co,Mn-MOFs . Despite the good activity of Co-based catalysts, they still suffer from low utilization efficiency of active sites and serious metal leaching, which lead to unsatisfactory activity and stability.…”

Section: Introductionmentioning

confidence: 99%

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Modulation of Exposed Active Sites and Electronic Structure of Co-Doped Carbon Nitride Achieving Enhanced Activity toward Peroxymonosulfate Activation for Antibiotic Degradation

Liu,

Wu,

et al. 2024

Ind. Eng. Chem. Res.

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Co-doped carbon nitride (CoCN-6NH 4 Cl) was prepared through an NH 4 Cl-assisted pyrolysis method. The catalyst exhibits enhanced and persistent activity toward peroxymonosulfate (PMS) activation for antibiotic degradation under visible light. The levofloxacin (LEV) removal efficiency reaches 89.1% within 60 min, much higher than that of the catalyst (CoCN) prepared without addition of NH 4 Cl (65.0%). Moreover, the decay of the LEV removal efficiency after four cycles over CoCN-6NH 4 Cl is only 7.6%, in contrast to 21.8% over CoCN. The enhanced activity of CoCN-6NH 4 Cl can be attributed to the remarkably increased specific surface area to expose more active sites as well as the modified electronic structure caused by Cl doping. The improved charge separation efficiency of CoCN-6NH 4 Cl results in the generation of more photogenerated holes (h + ), superoxide radicals (•O 2 − ), and singlet oxygen ( 1 O 2 ) as main active species participating in the LEV degradation, thus greatly promoting the degradation efficiency. This work provides a facile and effective strategy to develop high-performance catalysts in advanced oxidation processes.

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