MIL-101(FeII3,Mn) with dual-reaction center as Fenton-like catalyst for highly efficient peroxide activation and phenol degradation

Huang, Peipei; Chang, Qing; Jiang, Guodong; Xiao, Keru; Wang, Xu

doi:10.1016/j.seppur.2022.122582

Cited by 25 publications

(10 citation statements)

References 57 publications

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“…The band in the range of 500–1000 cm –1 was designated as the vibration in mineral oxides, with absorption peaks at 1625 and 3431 cm –1 attributed to the bending and stretching vibration peaks of adsorbed water on CuMnO 2. For the infrared spectra of CS-Ca@PEI/CuMnO 2 , in addition to the characteristic peaks of CuMnO 2 , bands at 3431 cm –1 , 2929 cm –1 , and 1436 cm –1 indicated the presence of −OH, −CH 2 , and N–H functional groups, respectively. − The absorption peak of the Mn–O group was observed at 592 cm –1 .…”

Section: Resultsmentioning

confidence: 99%

Reusable CS-Ca@PEI/CuMnO₂ Hydrogel Beads for Peroxymonosulfate-Activated Degradation of Congo Red

Yang,

Hu,

Rao

et al. 2024

Langmuir

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Metal oxides can activate peroxymonosulfate (PMS) for the catalytic degradation of organic dyes. However, achieving high catalytic efficiency, structural stability, ease of recovery, and recyclability remains challenging for both research and practical applications. To address these requirements, a bimetallic oxide, CuMnO 2 , was synthesized using a simple hydrothermal approach and was encapsulated to create hydrogel beads, CS-Ca@PEI/CuMnO 2 . Subsequently, CS-Ca@PEI/CuMnO 2 was used to activate PMS and establish a solid−liquid heterogeneous oxidation system (CS-Ca@PEI/CuMnO 2 /PMS) for the degradation of Congo red (CR). The effects of various parameters such as different systems, catalyst dosages, initial pH values, PMS concentrations, temperatures, and anion types on the catalytic degradation properties of CS-Ca@PEI/CuMnO 2 for CR were systematically evaluated. The results indicated that CS-Ca@PEI/CuMnO 2 has exceptional degradation capacity, achieving 91.0% degradation of CR at pH 7. After three degradation cycles, the catalyst maintained an 86.9% degradation efficiency compared to its original performance, highlighting its robust structural stability. The presence of reactive radicals, specifically 1 O 2 and • O 2 − , were confirmed through quenching experiments, X-ray photoelectron spectroscopy (XPS), and electron paramagnetic resonance spectroscopy (EPR). Liquid chromatography-tandem mass spectrometry (LC-MS) revealed ten proposed intermediates in the catalytic degradation process. Due to its exceptional catalytic performance, structural durability, recyclability, and ease of retrieval, the catalyst shows great potential for effectively removing organic pollutants from industrial wastewater.

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Section: Resultsmentioning

confidence: 99%

Reusable CS-Ca@PEI/CuMnO₂ Hydrogel Beads for Peroxymonosulfate-Activated Degradation of Congo Red

Yang,

Hu,

Rao

et al. 2024

Langmuir

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“…Based on the above experimental evidences, the possible catalytic mechanism of HKUST-1/ZIF-67-7% was proposed and is illustrated in Figure . First, the binding of HKUST-1/ZIF-67-7% and H 2 O 2 occurred to produce several possible complexes (e.g., Cu(I)–H 2 O 2 , Cu(II)–H 2 O 2 , Co(II)–H 2 O 2 , and Co(III)–H 2 O 2 (eqs –)) due to the interaction between copper/cobalt sites and H 2 O 2 . Subsequently, H 2 O 2 was decomposed into • OH and • OOH with the redox reactions of Cu(II)/Cu(I) and Co(III)/Co(II) (eqs –), and • OOH could be further dissociated into O 2 •– (eq ).…”

Section: Results and Discussionmentioning

confidence: 99%

“…This significantly urges the development of efficient and eco-friendly strategies to deal with the dye-related crisis . Strategies such as adsorption, − photocatalysis, , biodegradation, and advanced oxidation processes − are currently available for dye wastewater treatment. Among them, Fenton-based advanced oxidation processes (AOPs), a green and sustainable technology that degrades organic pollutants via highly reactive oxygen species (ROS) produced by H 2 O 2 activation, have captured intensive attention in environmental remediation .…”

Section: Introductionmentioning

confidence: 99%

HKUST-1/ZIF-67 Nanocomposites as Heterogeneous Cu–Co-Bimetallic Fenton-like Catalysts for Efficient Removal of Methylene Blue

Chen,

Tian,

Ruan

et al. 2024

ACS Appl. Nano Mater.

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Fenton-like reactions with Fe-based metal−organic framework (MOF) catalysts have been extensively explored in the field of environmental remediation. However, easy precipitation of Fe 2+ /Fe 3+ and the production of sludge under basic conditions caused catalyst loss and greatly limited their large-scale application in industry. The development of an Fe-free Fenton-like reaction is of extreme importance and remains in its infant stage. Herein, a series of Fe-free dual MOF nanoparticles (HKUST-1/ZIF-67-X) were fabricated by in situ coating of ZIF-67 on HKUST-1 and were systematically analyzed by various characterization techniques, such as scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared (FT-IR), X-ray photoelectron spectroscopy (XPS), and N 2 adsorption−desorption isotherms. Subsequently, these materials were applied in catalyzing methylene blue (MB) degradation. The effects of several operation parameters, i.e., pH, H 2 O 2 dosage, catalyst dosage, and reaction temperature, on MB degradation were investigated. It was unveiled that HKUST-1/ZIF-67-7% exhibited an outstanding catalytic activity without the production of any sludge, which could reach as high as 93.29% MB degradation efficiency within 40 min. This was attributed to the unique core−satellite histoarchitecture of HKUST-1/ZIF-67-7% and the synergistic effect between HKUST-1 and ZIF-67. The HKUST-1/ZIF-67-7% composite still achieved up to 80.17% MB degradation efficiency at the fifth catalysis cycle. Importantly, HKUST-1/ZIF-67-7% exhibited significant catalytic efficiency under a wide pH range (4.2−10.1) and top catalytic efficiency at the near neutral pH value. The low cost, environment benignancy, satisfactory degradation efficiency, wide pH application range, and excellent reusability emphasize its great application potential in Fenton-like degradation of pollutants. This contribution could provide a paradigm investigation for designing non-iron-based MOF catalysts to solve the increasingly pressing pollution issues.

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“…Therefore, researchers often add another metal to improve the material and compensate for shortcomings. Our research group prepared MIL-101(Fe II 3 , Mn) by adding Mn to MIL-101(Fe), which can be used to activate H 2 O 2 as another reaction center to degrade phenol (Figure 5a) [46]. Moreover, the electrons around Mn were transferred mainly to the Fe atomic region because of the difference in electronegativity, so H 2 O 2 was absorbed mainly in the electron-rich region, which finally improved the utilization rate of H 2 O 2 (81.2%).…”

Section: Modification and Activation Of Milsmentioning

confidence: 99%

Recent Progress of MIL MOF Materials in Degradation of Organic Pollutants by Fenton Reaction

Xiao

Shu²,

et al. 2023

Catalysts

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In recent years, environmental pollution has become more serious, especially the organic pollutants. Metal organic frameworks (MOFs) are promising materials used to degrade pollutants recently. Among them, Materials Institute Lavoisier frameworks (MILs) have been widely engaged due to their good stability and unique structural characteristics. This paper systematically analyses and summarizes the progress of MILs in degradation of organic pollutant by Fenton reaction in recent years. The MILs, especially four types of MILs, including MIL-100, MIL-101, MIL-88, and MIL-53, are first described and classified. Then, the common synthesis methods (hydrothermal synthesis, steam-assisted synthesis, and microwave-assisted synthesis) of MIL are summarized and compared. Modification and activation of MILs to obtain good degradation effect are also introduced and discussed. Finally, the applications of MILs in Fenton reaction are reviewed and their future development is prospected.

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MIL-101(FeII3,Mn) with dual-reaction center as Fenton-like catalyst for highly efficient peroxide activation and phenol degradation

Cited by 25 publications

References 57 publications

Reusable CS-Ca@PEI/CuMnO₂ Hydrogel Beads for Peroxymonosulfate-Activated Degradation of Congo Red

Reusable CS-Ca@PEI/CuMnO₂ Hydrogel Beads for Peroxymonosulfate-Activated Degradation of Congo Red

HKUST-1/ZIF-67 Nanocomposites as Heterogeneous Cu–Co-Bimetallic Fenton-like Catalysts for Efficient Removal of Methylene Blue

Recent Progress of MIL MOF Materials in Degradation of Organic Pollutants by Fenton Reaction

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MIL-101(FeII3,Mn) with dual-reaction center as Fenton-like catalyst for highly efficient peroxide activation and phenol degradation

Cited by 25 publications

References 57 publications

Reusable CS-Ca@PEI/CuMnO2 Hydrogel Beads for Peroxymonosulfate-Activated Degradation of Congo Red

Reusable CS-Ca@PEI/CuMnO2 Hydrogel Beads for Peroxymonosulfate-Activated Degradation of Congo Red

HKUST-1/ZIF-67 Nanocomposites as Heterogeneous Cu–Co-Bimetallic Fenton-like Catalysts for Efficient Removal of Methylene Blue

Recent Progress of MIL MOF Materials in Degradation of Organic Pollutants by Fenton Reaction

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Reusable CS-Ca@PEI/CuMnO₂ Hydrogel Beads for Peroxymonosulfate-Activated Degradation of Congo Red

Reusable CS-Ca@PEI/CuMnO₂ Hydrogel Beads for Peroxymonosulfate-Activated Degradation of Congo Red