Oxygen vacancy enhancing Fenton-like catalytic oxidation of norfloxacin over prussian blue modified CeO2: Performance and mechanism

Zhang, Yuanyuan; Xiao, Ruyi; Wang, Shuangfei; Zhu, Hongxiang; Song, Hainong; Chen, Guoning; Lin, Hongfei; Zhang, Jian; Xiong, Jianhua

doi:10.1016/j.jhazmat.2020.122863

Cited by 40 publications

(16 citation statements)

References 43 publications

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“…Although the presence of UV light accelerated the degradation process of catalytic system, NOR in water samples was not completely mineralized in 30 min reaction. The result indicated the formation of intermediate products which was consistent with the literature (Zhang et al 2020c).…”

Section: Catalytic Activities Of Catalystssupporting

confidence: 92%

“…The stability and recyclability analysis of PB/CeO 2 were conducted by the FTIR spectra and iron leaching. The results demonstrated the stable molecular structure and high recyclability of PB/CeO 2 that was appropriate for the practical application (Zhang et al 2020c).…”

Section: Physical Properties Of Catalystsmentioning

confidence: 83%

“…Based on previous research, the synergetic catalysis between Ce 3 + /Ce 4+ and Fe 3+ /Fe 2+ on PB/CeO 2 composites contributed to a better catalytic performance. Moreover, the increased OVs correlated to the oxygen storage and release capacity of CeO 2 also improved the decomposition of H 2 O 2 and gave rise to excellent catalytic properties (Zhang et al 2020c).…”

Section: Catalytic Activities Of Catalystsmentioning

confidence: 98%

“…In our previous study, the morphologies, structures, and valence states of the synthesized catalysts have been characterized (Zhang et al 2020c). In summary, the typical characteristic peaks of cubic fluorite CeO 2 (JCPDS 34-0349) at 2θ values of 28.6°, 33.1°, 47.6°, 56.4°, 59.1°, 69.5°, 76.7°, and 79.1°were clearly performed in the XRD patterns of CeO 2 , PB+CeO 2, and PB/CeO 2 .…”

Section: Physical Properties Of Catalystsmentioning

confidence: 99%

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Prussian blue modified CeO2 as a heterogeneous photo-Fenton-like catalyst for degradation of norfloxacin in water

Xiao

Zhang

Wang

et al. 2021

Environ Sci Pollut Res

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The heterogeneous photo-Fenton-like process is emerging as a promising treatment of antibiotics-containing wastewater. The preparation of new efficient and stable catalysts is one of the research fields. A composite catalyst, prussian blue (PB) modified CeO 2 was prepared, characterized, and applied for photo-Fenton oxidation of norfloxacin (NOR) in this study. It was found that chemical doping of PB leaded to more oxygen vacancies and increased the surface area of CeO 2 obviously. PB/CeO 2 with more Ce 3+ facilitated electron transfer between Fe 3+ /Fe 2+ with Ce 3+ /Ce 4+ . PB could also improve the separation rate of photoexcited electron-hole pairs in CeO 2 nanostructures. When the doping ratio of PB and CeO 2 was 10%, PB/CeO 2 show the highest catalytic degradation ability and 88.93% of NOR could be degraded within 30 min. PB/CeO 2 composite showed well reactivity at the wide pH value range of 3-8. The reusable experiments and low iron dissolution with less than 1 mg/L indicated that PB/CeO 2 could be employed as an efficient heterogeneous photo-Fenton-like catalyst in organic contaminants degradation.

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Section: Catalytic Activities Of Catalystssupporting

confidence: 92%

Section: Physical Properties Of Catalystsmentioning

confidence: 83%

Section: Catalytic Activities Of Catalystsmentioning

confidence: 98%

Section: Physical Properties Of Catalystsmentioning

confidence: 99%

See 2 more Smart Citations

Prussian blue modified CeO2 as a heterogeneous photo-Fenton-like catalyst for degradation of norfloxacin in water

Xiao

Zhang

Wang

et al. 2021

Environ Sci Pollut Res

Self Cite

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“…The same typical bands revealed by FTIR indicate the introduction of Fe 3 O 4 in the core-shell structure, which coincides with the result from XRD. The major peak in the vicinity of 2092 cm −1 assigned to the −CN stretching vibration [ 46 ] and the stretching bands at 599 cm −1 and 501 cm −1 related to the formation of Fe−CN−Fe [ 47 ], demonstrating the occurrence of Fe 3 O 4 @PB. The coordination between the nitrogen lone electron pair of −CN in the PB and the 3p 3 hybrid orbital formed by the Cd (II) 5s and 5p orbitals may have contributed to the differences shown by FTIR after adsorption.…”

Section: Resultsmentioning

confidence: 99%

Removal of Cd(II) from Micro-Polluted Water by Magnetic Core-Shell Fe3O4@Prussian Blue

et al. 2021

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A novel core-shell magnetic Prussian blue-coated Fe3O4 composites (Fe3O4@PB) were designed and synthesized by in-situ replication and controlled etching of iron oxide (Fe3O4) to eliminate Cd (II) from micro-polluted water. The core-shell structure was confirmed by TEM, and the composites were characterized by XRD and FTIR. The pore diameter distribution from BET measurement revealed the micropore-dominated structure of Fe3O4@PB. The effects of adsorbents dosage, pH, and co-existing ions were investigated. Batch results revealed that the Cd (II) adsorption was very fast initially and reached equilibrium after 4 h. A pH of 6 was favorable for Cd (II) adsorption on Fe3O4@PB. The adsorption rate reached 98.78% at an initial Cd (II) concentration of 100 μg/L. The adsorption kinetics indicated that the pseudo-first-order and Elovich models could best describe the Cd (II) adsorption onto Fe3O4@PB, indicating that the sorption of Cd (II) ions on the binding sites of Fe3O4@PB was the main rate-limiting step of adsorption. The adsorption isotherm well fitted the Freundlich model with a maximum capacity of 9.25 mg·g−1 of Cd (II). The adsorption of Cd (II) on the Fe3O4@PB was affected by co-existing ions, including Cu (II), Ni (II), and Zn (II), due to the competitive effect of the co-adsorption of Cd (II) with other co-existing ions.

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Prussian Blue Analogue‐Based Materials: Synthesis and Their Application in Peroxymonosulfate Activation for Wastewater Treatment

Zhang,

Zhang

2024

ChemCatChem

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Peroxymonosulfate (PMS) based advanced oxidation processes (AOPs) are effective in degrading refractory organic pollutants in water. The unique internal chemical tunability of Prussian blue analogues (PBAs), a type of metal‐organic framework materials (MOFs), makes them promising catalysts for PMS‐AOPs. However, the pristine PBA is limited in practical application due to its structural instability and easy leaching of metal ions. To this end, various methods have been developed to enhance the catalytic performance of PBAs. In this paper, the recent advances in the modification and composite strategies of PBA catalysts are systematically reviewed. PBA modification by the regulation of synthesis conditions and post‐synthesis treatment, along with composite strategies involving metal and non‐metal based materials are introduced. The structural morphology improvement, physical and chemical property adjustment, vacancy design and crystal surface modulation of PBAs induced by these modification and composite strategies are discussed in depth. In addition, the performance of the modified and composite catalysts to activate PMS for organic pollutant degradation is demonstrated. The radical pathway via SO4•‐, •OH and O2•‐, non‐radical pathway through 1O2, electron transfer process and high‐valence metal‐oxygen species, or a combination of radical and non‐radical pathways are revealed in PMS‐AOPs with PBAs and their derivatives as catalysts.

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Oxygen vacancy enhancing Fenton-like catalytic oxidation of norfloxacin over prussian blue modified CeO2: Performance and mechanism

Cited by 40 publications

References 43 publications

Prussian blue modified CeO2 as a heterogeneous photo-Fenton-like catalyst for degradation of norfloxacin in water

Prussian blue modified CeO2 as a heterogeneous photo-Fenton-like catalyst for degradation of norfloxacin in water

Removal of Cd(II) from Micro-Polluted Water by Magnetic Core-Shell Fe3O4@Prussian Blue

Prussian Blue Analogue‐Based Materials: Synthesis and Their Application in Peroxymonosulfate Activation for Wastewater Treatment

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