Preparation of a highly active Fe-ZSM-5 catalyst through solid-state ion exchange for the catalytic decomposition of N2O

Rauscher, Marcus

doi:10.1016/s0926-860x(99)00088-5

Cited by 111 publications

(23 citation statements)

References 6 publications

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“…FeZ was prepared by solid-state ion exchange starting from NH 4 ZSM5 zeolite applying the modified procedure of Rauscher et al (1999), as referred in Juretic Perisic et al (2016). Composite photocatalyst was prepared with different mass ratios TiO 2 /FeZ wt%; 95:5, 72.5:27.5, and 50:50, hereinafter referred as TiO 2 -FeZ-(5), TiO 2 -FeZ-(27.5), and TiO 2 -FeZ-(50), respectively, for the convenience of description.…”

Section: Photocatalysts Preparation and Immobilizationmentioning

confidence: 99%

Solar-driven photocatalytic treatment of diclofenac using immobilized TiO2-based zeolite composites

Kovačić

Salaeh

Kušić

et al. 2016

Environ Sci Pollut Res

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The study is aimed at evaluating the potential of immobilized TiO2-based zeolite composite for solar-driven photocatalytic water treatment. In that purpose, TiO2-iron-exchanged zeolite (FeZ) composite was prepared using commercial Aeroxide TiO2 P25 and iron-exchanged zeolite of ZSM5 type, FeZ. The activity of TiO2-FeZ, immobilized on glass support, was evaluated under solar irradiation for removal of diclofenac (DCF) in water. TiO2-FeZ immobilized in a form of thin film was characterized for its morphology, structure, and composition using scanning electron microscopy/energy-dispersive x-ray spectroscopy (SEM/EDX). Diffuse reflectance spectroscopy (DRS) was used to determine potential changes in band gaps of prepared TiO2-FeZ in comparison to pure TiO2. The influence of pH, concentration of hydrogen peroxide, FeZ wt% within the composite, and photocatalyst dosage on DCF removal and conversion efficiency by solar/TiO2-FeZ/H2O2 process was investigated. TiO2-FeZ demonstrated higher photocatalytic activity than pure TiO2 under solar irradiation in acidic conditions and presence of H2O2.

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Section: Photocatalysts Preparation and Immobilizationmentioning

confidence: 99%

Solar-driven photocatalytic treatment of diclofenac using immobilized TiO2-based zeolite composites

Kovačić

Salaeh

Kušić

et al. 2016

Environ Sci Pollut Res

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“…The zeolites were supplied by Zeolyst International, USA. NH 4 ZSM5 and HY were used as received, while FeZSM5 zeolite was prepared according to the procedure described by Rauscher et al [38]. For each experiment performed with zeolites, the concentration of zeolites was 1 g l −1 .…”

Section: Methodsmentioning

confidence: 99%

Decomposition of phenol by hybrid gas/liquid electrical discharge reactors with zeolite catalysts

Kušić

Koprivanac

Locke

2005

Journal of Hazardous Materials

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“…Typically, a mechanical mixture of appropriate amounts of the parent zeolite and Fe precursor is heated (usually above the sublimation temperature of the Fe source) under an inert gas flow in an oven for a desired time followed by washing with H 2 O [23,33]. For the Fe-zeolites used as NH 3 -SCR catalysts, the H-form zeolites and iron chloride precursors (FeCl 3 or FeCl 2 · 4H 2 O) are commonly used [23,34].…”

Section: Solid-state Ion Exchange (Ssie)mentioning

confidence: 99%

Emerging Applications of Environmentally Friendly Zeolites in the Selective Catalytic Reduction of Nitrogen Oxides

Xie

Shi

2016

Green Chemistry and Sustainable Technology

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The catalytic removal of nitrogen oxides (NO x ) from diesel exhaust under oxygen-rich conditions remains a major challenge in the field of environmental catalysis, and the selective catalytic reduction of NO x with NH 3 (NH 3 -SCR), especially over zeolite catalysts, is a well-proven technique for the catalytic deNO x process for diesel vehicles. The comprehensive understanding of the structure-activity relationship of zeolite catalysts in the NH 3 -SCR reaction and the elucidation of the detailed reaction mechanism are very important for the practical use of these catalytic materials. In this chapter, using the environmentally friendly Fe-and Cu-based zeolite catalysts (i.e. Fe-ZSM-5, Cu-ZSM-5, Cu-SSZ-13 and Cu-SAPO-34, etc.) as examples, the influence of preparation methods on NH 3 -SCR performance, the role of metal active sites/surface acid sites, the impact of NO 2 and co-existing pollutants, the hydrothermal stability and also the possible SCR reaction pathways over these materials are discussed in detail, which can provide theoretical and empirical guidance for the redesign and activity improvement of these catalysts in their practical applications.

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Preparation of a highly active Fe-ZSM-5 catalyst through solid-state ion exchange for the catalytic decomposition of N2O

Cited by 111 publications

References 6 publications

Solar-driven photocatalytic treatment of diclofenac using immobilized TiO2-based zeolite composites

Solar-driven photocatalytic treatment of diclofenac using immobilized TiO2-based zeolite composites

Decomposition of phenol by hybrid gas/liquid electrical discharge reactors with zeolite catalysts

Emerging Applications of Environmentally Friendly Zeolites in the Selective Catalytic Reduction of Nitrogen Oxides

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