Enhanced PMS activation by MOF-derived Co3O4/sepiolite composite for norfloxacin degradation: Performance, mechanism and degradation pathway

Song, Junying; Ren, Xiaofei; Hu, Guicong; Hu, Xiaolong; Cheng, Weimin

doi:10.1016/j.psep.2023.06.015

Cited by 18 publications

(2 citation statements)

References 52 publications

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“…In pathway I, intermediate-1 (I-1, m / z = 318.19) is initially formed by substituting the fluorine group (15F site) with the hydroxyl group. Further reactions, including dehydroxylation and decarboxylation, convert I-1 into I-2 and I-3 . Subsequently, ring-opening and C–C double bond formation reactions occur, leading to the formation of I 4̅ and I-10.…”

Section: Resultsmentioning

confidence: 99%

“…After the cleavage of the piperazine ring and oxidation reaction, NOR is transformed into I-5B ( m / z = 351.98). Subsequently, I-6A or I-6B ( m / z = 336) is obtained through the breakage of the CO double bond and hydrogenation reaction of the – NH–CHO group in I-5B . Further reactions lead to the production of I-8A ( m / z = 278.98) through the loss of C 2 H 5 N and further oxidation of I-6B (or I-6A), and then I-8A loses the carbonyl group to generate I-9A ( m / z = 250.05).…”

Section: Resultsmentioning

confidence: 99%

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Facet-Dependent Fe₂O₃/BiVO₄(110)/BiVO₄(010)/Fe₂O₃ Dual S-Scheme Photocatalyst as an Efficient Visible-Light-Driven Peroxymonosulfate Activator for Norfloxacin Degradation

Yang,

Gong,

Shi

et al. 2024

Langmuir

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A lack of eco-friendly, highly active photocatalyst for peroxymonosulfate (PMS) activation and unclear environmental risks are significant challenges. Herein, we developed a double S-scheme Fe 2 O 3 /BiVO 4 (110)/BiVO 4 (010)/Fe 2 O 3 photocatalyst to activate PMS and investigated its impact on wheat seed germination. We observed an improvement in charge separation by depositing Fe 2 O 3 on the ( 010) and ( 110) surfaces of BiVO 4 . This enhancement is attributed to the formation of a dual S-scheme charge transfer mechanism at the interfaces of Fe 2 O 3 /BiVO 4 (110) and BiVO 4 (010)/Fe 2 O 3 . By introducing PMS into the system, photogenerated electrons effectively activate PMS, generating reactive oxygen species (ROS) such as hydroxyl radicals (•OH) and sulfate radicals (SO 4 •−). Among the tested systems, the 20% Fe 2 O 3 /BiVO 4 /Vis/PMS system exhibits the highest catalytic efficiency for norfloxacin (NOR) removal, reaching 95% in 40 min. This is twice the catalytic efficiency of the Fe 2 O 3 /BiVO 4 /PMS system, 1.8 times that of the Fe 2 O 3 /BiVO 4 system, and 5 times that of the BiVO 4 system. Seed germination experiments revealed that Fe 2 O 3 /BiVO 4 heterojunction was beneficial for wheat seed germination, while PMS had a significant negative effect. This study provides valuable insights into the development of efficient and sustainable photocatalytic systems for the removal of organic pollutants from wastewater.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Facet-Dependent Fe₂O₃/BiVO₄(110)/BiVO₄(010)/Fe₂O₃ Dual S-Scheme Photocatalyst as an Efficient Visible-Light-Driven Peroxymonosulfate Activator for Norfloxacin Degradation

Yang,

Gong,

Shi

et al. 2024

Langmuir

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A CuCo Bimetal Confined Hollow SiC Hybrid Photothermal Nanoreactor for the Integration of Pollutant Mineralization and Solar‐Powered Water Evaporation

Wang,

Liu,

Gao

et al. 2024

ChemSusChem

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Herein, a bimetallic functional hollow nanoreactor defined as (Co@SiO2/Cu‐X) was successfully constructed and endowed with a hollow configuration composed of mesoporous N‐doping C‐Silica hybrid shell encapsulated ultrafine Cu and Co metallic species. Such a configuration allows for the efficient diffusion and open reaction space of big contaminant molecules. The catalytic synergy of exposed Co‐Cu bimetals and the easy accessibility of electron‐rich contaminants by polar N doping sites triggered surface affinity make the optimal Co@SiO2/Cu‐6 afford an excellent catalytic norfloxacin mineralization activity (7 min, kabs=0.744 min‐1) compared to Cu‐free Co@SiO2‐6 (kabs=0.493 min‐1) and Co‐6 (kabs=0.378 min‐1) Benefiting from the above unique advantages, Co@SiO2/Cu‐6 show excellent removal performance in degrading different pollutants (carbamazepine, oxytetracycline, tetracycline, and bisphenol A) and persistent recycled stability in removing NFX. In addition, by virtue of the excellent photothermal properties, interfacial solar water evaporation application by Co@SiO2/Cu‐6 was further explored to reach the regeneration of cleanwater (1.595 kg m‐2 h‐1, 97.51%). The integration of pollutant mineralization and solar water evaporation by creating the monolith evaporation by anchoring the Co@SiO2/Cu‐6 onto the tailored melamine sponge allows the regeneration of cleanwater (1.6 kg·m‐2·h‐1) and synchronous pollutant removal (NFX, 95%, 60 min), which provides potential possibility the treatment of complicated wastewater.

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Selective micropollutants removal in wastewaters by non-radical activation of peroxymonosulfate: Multiparameter analysis of electron-donating capacity

Zhang,

Chen,

Luo

et al. 2025

Applied Catalysis B: Environment and Energy

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Enhanced PMS activation by MOF-derived Co3O4/sepiolite composite for norfloxacin degradation: Performance, mechanism and degradation pathway

Cited by 18 publications

References 52 publications

Facet-Dependent Fe₂O₃/BiVO₄(110)/BiVO₄(010)/Fe₂O₃ Dual S-Scheme Photocatalyst as an Efficient Visible-Light-Driven Peroxymonosulfate Activator for Norfloxacin Degradation

Facet-Dependent Fe₂O₃/BiVO₄(110)/BiVO₄(010)/Fe₂O₃ Dual S-Scheme Photocatalyst as an Efficient Visible-Light-Driven Peroxymonosulfate Activator for Norfloxacin Degradation

A CuCo Bimetal Confined Hollow SiC Hybrid Photothermal Nanoreactor for the Integration of Pollutant Mineralization and Solar‐Powered Water Evaporation

Selective micropollutants removal in wastewaters by non-radical activation of peroxymonosulfate: Multiparameter analysis of electron-donating capacity

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Enhanced PMS activation by MOF-derived Co3O4/sepiolite composite for norfloxacin degradation: Performance, mechanism and degradation pathway

Cited by 18 publications

References 52 publications

Facet-Dependent Fe2O3/BiVO4(110)/BiVO4(010)/Fe2O3 Dual S-Scheme Photocatalyst as an Efficient Visible-Light-Driven Peroxymonosulfate Activator for Norfloxacin Degradation

Facet-Dependent Fe2O3/BiVO4(110)/BiVO4(010)/Fe2O3 Dual S-Scheme Photocatalyst as an Efficient Visible-Light-Driven Peroxymonosulfate Activator for Norfloxacin Degradation

A CuCo Bimetal Confined Hollow SiC Hybrid Photothermal Nanoreactor for the Integration of Pollutant Mineralization and Solar‐Powered Water Evaporation

Selective micropollutants removal in wastewaters by non-radical activation of peroxymonosulfate: Multiparameter analysis of electron-donating capacity

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Facet-Dependent Fe₂O₃/BiVO₄(110)/BiVO₄(010)/Fe₂O₃ Dual S-Scheme Photocatalyst as an Efficient Visible-Light-Driven Peroxymonosulfate Activator for Norfloxacin Degradation

Facet-Dependent Fe₂O₃/BiVO₄(110)/BiVO₄(010)/Fe₂O₃ Dual S-Scheme Photocatalyst as an Efficient Visible-Light-Driven Peroxymonosulfate Activator for Norfloxacin Degradation