Exchanged zeolites with transition metals of the first period as photocatalyts for n-hexadecane degradation

Aboul-Gheit, Ahmed K.; Ahmed, Sahar M.; Hanafy, Samia A.

doi:10.1016/j.molcata.2008.03.016

Cited by 10 publications

(2 citation statements)

References 23 publications

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“…These peaks were solely found in higher iron content zeolites. The absence of other hematite signals in lower iron content samples could be attributed either to the high dispersion of these species in the channels and cavities of the zeolites, or to a significantly small oxide particle size [15]. In the case of Fe/ZSM-11 (2%) sample the absence of signals corresponding to a-Fe 2 O 3 may be explained since the supported FeOx nanoparticles are too small to be detected by XRD [27].…”

Section: Catalysts Characterizationmentioning

confidence: 97%

“…Na + ) located in the zeolite cages, channels and cavities, can be exchanged for other cations. The size, number and position of the exchanged cations contribute significantly to the catalyst activity [15]. Recently, Fe(III)-doped zeolites have attracted attention of many researchers working in the field of environmental catalysis due to their activity in photo Fenton reactions.…”

Section: Introductionmentioning

confidence: 99%

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Fe/ZSM-11 as a novel and efficient photocatalyst to degrade Dichlorvos on water solutions

Gómez

Lerici

Saux

et al. 2017

Applied Catalysis B: Environmental

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Iron modified ZSM-11 zeolites were tested as heterogeneous catalysts in the photodegradation of Dichlorvos water solutions. ZSM-11 zeolite matrixes were synthesized by the hydrothermal method and iron was incorporated by the wet impregnation method in four different concentrations. Catalysts samples were characterized by several techniques (XRD, BET, UV-vis DRS, ICP-OES, TPR, EPR) in order to confirm structure, crystallinity and iron species present. a-Fe 2 O 3 was detected by XRD in higher iron content samples and it presence was confirmed by EPR, TPR and UV-vis DRS. Band gap energies for Fe/ZSM-11 samples were closer to that reported for pure a-Fe 2 O 3 . The materials so far characterized were tested as heterogeneous catalyst in Dichlorvos photodegradation. Fe/ZSM-11 with a 6 wt% of iron incorporation showed the best catalytic behavior. Higher iron loadings showed lower degradation efficiencies. This material is reusable for at least six catalytic cycles without considerable differences among the DDVP amount degraded.

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Section: Catalysts Characterizationmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Fe/ZSM-11 as a novel and efficient photocatalyst to degrade Dichlorvos on water solutions

Gómez

Lerici

Saux

et al. 2017

Applied Catalysis B: Environmental

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The Heterogenized Hexazatricyclic Complexes as Solid Acid Catalyst for the Degradation of Rhodamine‐b

2020

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The present work describes the one‐pot template synthesis of solid acid photocatalyst, was designed by the copper(II) complex (CPEA) of 14‐membered hexaazamacrocyclic ligand (4, 11‐bis‐ (methyl)‐1, 8 α ‐ methyl benzyl −1, 3, 6, 8, 10, 13‐hexaaza cyclotetradecane) and porous zeolite‐Y. The synthesized homogeneous photocatalyst (CPEA) was impregnated in the micropores of zeolite‐Y and the solid catalyst termed as CPEAY. The CPEA and CPEAY were investigated by XPS, EPR, FTIR, DRS/UV‐visible, XRD, BET, N2 ‐ adsorption isotherms, SEM, TEM, ESI‐mass and TGA. The photocatalytic performance of these compounds evaluated in the removal of rhodamine‐B (RhB) dye under UV and visible light illumination. At optimized parameters, the CPEAY, exhibits 100 % dye removal efficiency for the degradation of RhB, when compared with CPEA complex. The CPEAY catalyst stability and reusability in the degradation of RhB were comprehensively studied for four times and shows the identical catalytic ability with fresh catalyst.

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Enhanced-photoreduction deposition of Ag over sono-dispersed C3N4-Clinoptilolite used as nanophotocatalyst for efficient photocatalytic degradation of tetracycline antibiotic under simulated solar-light

Jodeyri

Haghighi

Shabani

2019

J Mater Sci: Mater Electron

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Exchanged zeolites with transition metals of the first period as photocatalyts for n-hexadecane degradation

Cited by 10 publications

References 23 publications

Fe/ZSM-11 as a novel and efficient photocatalyst to degrade Dichlorvos on water solutions

Fe/ZSM-11 as a novel and efficient photocatalyst to degrade Dichlorvos on water solutions

The Heterogenized Hexazatricyclic Complexes as Solid Acid Catalyst for the Degradation of Rhodamine‐b

Enhanced-photoreduction deposition of Ag over sono-dispersed C3N4-Clinoptilolite used as nanophotocatalyst for efficient photocatalytic degradation of tetracycline antibiotic under simulated solar-light

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