Fe and Ni nanoparticles-loaded zeolites as effective catalysts for catalytic reduction of organic pollutants

Mekki, Amel; Mokhtar, Adel; Hachemaoui, Mohammed; Beldjilali, Mohammed; Meliani, Meriem fethia; Zahmani, Hadjira Habib; Hacini, Salih; Boukoussa, Bouhadjar

doi:10.1016/j.micromeso.2020.110597

Cited by 69 publications

(13 citation statements)

References 72 publications

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“…The high-resolution spectrums of Mn 2p (Figure S4) emerge two distinct characteristic peaks at ca 641.5 and 653.4 eV, and the distance of these two binding energies is 11.9 eV, which is consistent with Mn 2p3/2 and Mn 2p1/2, respectively, and thus confirming the formation of MnO. , There is no obvious shift in the binding energy of Mn 2p between different Me–MnO, indicating that the introduction of metal Me cannot change the valence state of Mn ions. It should be noted that in the spectra of all Me elements (Figure S5), not only the peaks of the metal Me 0 can be observed, but also the peaks of Me 2+ /Me 3+ /Me 4+ can be seen, − which is consistent with the observations of EDS. The detailed peak splitting parameters are summarized in Table S1.…”

Section: Results and Discussionsupporting

confidence: 86%

Thermodynamic Perspective: Insights into the Capacity Increase Phenomenon and Regulation of the Capacity Tendency of MnO for Lithium-Ion Battery Anodes

Liu

Zhang

Guan

et al. 2021

ACS Appl. Energy Mater.

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MnO, as a promising anode for lithium-ion batteries, is easy to form high-valence manganese oxides during the battery operation, causing a continuous capacity increase and hindering practical applications. Herein, an effective approach for regulating the electrochemical capacity trend is presented with the guide of the thermodynamic calculations. According to the calculated Ellingham diagrams, the potential metals (Me = Fe, Sn, Co, Ni, and Cu) were selected to synthesize the Me–MnO composite anode materials. The cycling test results indicate that the selected metals show the abilities to inhibit the further oxidation of Mn2+ and regulate the capacity in the order of Fe < Sn < Co < Ni < Cu. The mechanism of the electrochemical reaction sequence is clarified based on the thermodynamic properties. This approach provides a rational design of electrode materials for improved performance via a hybrid electrochemistry-thermodynamics analysis.

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Section: Results and Discussionsupporting

confidence: 86%

Thermodynamic Perspective: Insights into the Capacity Increase Phenomenon and Regulation of the Capacity Tendency of MnO for Lithium-Ion Battery Anodes

Liu

Zhang

Guan

et al. 2021

ACS Appl. Energy Mater.

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“…For all samples, the two broad peaks with the main binding energies at 755.2 and 716.6 eV are the characteristics of the Fe 2p 2/3 and Fe 2p 1/2 , [27,28] S1). [27][28][29][30] S1). This could be due to the fact that small FeO and Fe 2 O 3 clusters on the Fe/Beta-M and Fe/ZSM-5-M catalyst could strong interact with the zeolite support, [31,32] leading to the easy occurrence of the electron transfer between the anion framework and metal.…”

Section: Catalyst Characterizationmentioning

confidence: 99%

“…The binding energy near 710.0-710.3 eV is assigned to octahedral Fe originating from FeO (Fe 2+ oct), and the binding energy at 711.5-711.7 and 714.1-714.2 eV correspond to octahedral Fe (Fe 3+ oct) and tetrahedral Fe (Fe 3+ tet), coming from the Fe 2 O 3 (Table S1). [27][28][29][30] These results indicated that both of FeO and Fe 2 O 3 are presented in the zeolite supported Fe catalysts, and these Fe species could locate in extraframework and not be incorporated into zeolite framework. Notably, the binding energies of Fe 2+ oct and Fe 3+ oct in Fe/Beta-M (710.3 and 711.7 eV) and Fe/ZSM-5-M (710.2 and 711.7 eV) are slightly higher Fe/ZSM-5 (710.0 and 711.5 eV, Table S1).…”

Section: Catalyst Characterizationmentioning

confidence: 99%

Acidic mesoporous Beta zeolite assembled Fe catalyst with good catalytic performance in the carboazidation of N‐arylacrylamides

Weng

Pan

Yao

et al. 2021

Applied Organom Chemis

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Development of a high-efficient heterogeneous catalyst is very important for the preparation of organic azides compounds in modern synthetic chemistry. Acidic mesoporous Beta, mesoporous ZSM-5, and mesopore-free ZSM-5 zeolite were used as supports for the preparation of Fe (Fe/Beta-M, Fe/ZSM-5-M, & Fe/ZSM-5) catalysts and were applied the carboazidation of N-arylacrylamides with azidotrimethylsilane. The influence of pore size, acidities, and metal of the catalysts on reaction activity was investigated by X-ray powder diffraction, N 2 adsorption isotherm, scanning electron microscope, transmission electron microscopy, X-ray photoelectron spectroscopic, and temperature-programmed desorption of ammonia. The characterization and activity results show that the acidity, Fe species (Fe 2+ and Fe 3+ ) and mesoporosity in the Fe/Beta-M catalyst jointly contribute to this reaction, and Fe/Beta-M catalyst shows higher catalytic activity than Fe/ZSM-5-M, Fe/ZSM-5, and FeCl 3 catalysts.

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“…Thus, to get MNPs full catalytic activity and stability, more appropriate supporting materials for MNPs are required. [25][26][27][28] Different types of stabilizers, which include polymers, inorganic ligands, SiO 2 , chelating resin, small organic molecules, linear polymers, and dendrimers, have been used. [29][30][31] Among these stabilizers, polymers have mainly been used as a supporting material for MNPs.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, to get MNPs full catalytic activity and stability, more appropriate supporting materials for MNPs are required. [ 25–28 ]…”

Section: Introductionmentioning

confidence: 99%

Chitosan hydrogel wrapped bimetallic nanoparticles based efficient catalysts for the catalytic removal of organic pollutants and hydrogen production

Bakhsh

Khan

Akhtar

et al. 2022

Applied Organom Chemis

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A novel catalytic system based on bimetallic nanoparticles entrapped chitosan hydrogel container (Cu–Ag/CH, Cu–Co/CH, Cu–Ni/CH) was prepared. The developed catalytic system was applied for production of H2 from water and methanol and reduction of 4‐nitrophenol (4‐NP), 3‐nitrophenol, 2‐nitrophenol, 2,6‐dinitrophenol, methylene blue, congo red (CR), methyl orange, acridine orange, and potassium ferricynide (K3[Fe(CN)6]). The developed catalytic system has shown tremendous performance and exhibited high efficiency as a catalyst for water treatment and H2 generation. Among all the nanocatalysts, Cu–Co/CH was more efficient in catalytic H2 generation while Cu–Ni/CH was more efficient in catalytic reduction of toxic contaminants. Further, various parameters like amount of NaBH4, catalyst quantity, pollutant concentration, and temperature were optimized to enhance the effectiveness of catalytic system for fast production of H2 and reduction of toxins. Moreover, the recyclability of the catalyst was investigated, where slight decrease in reduction time was noted.

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Fe and Ni nanoparticles-loaded zeolites as effective catalysts for catalytic reduction of organic pollutants

Cited by 69 publications

References 72 publications

Thermodynamic Perspective: Insights into the Capacity Increase Phenomenon and Regulation of the Capacity Tendency of MnO for Lithium-Ion Battery Anodes

Thermodynamic Perspective: Insights into the Capacity Increase Phenomenon and Regulation of the Capacity Tendency of MnO for Lithium-Ion Battery Anodes

Acidic mesoporous Beta zeolite assembled Fe catalyst with good catalytic performance in the carboazidation of N‐arylacrylamides

Chitosan hydrogel wrapped bimetallic nanoparticles based efficient catalysts for the catalytic removal of organic pollutants and hydrogen production

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