Performance of nanostructure Fe-Ag-ZSM-5 catalysts for the catalytic oxidation of volatile organic compounds: Process optimization using response surface methodology

Jodaei, Azadeh; Niaei, Aligholi; Salari, Dariush

doi:10.1007/s11814-011-0052-2

Cited by 10 publications

(4 citation statements)

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“…The presence of silver nanoparticles in the magnetic catalyst structure increases its catalytic activity as a heterogeneous catalyst [26,27]. Catalysts with the enhanced chemical and physical properties make the hybrid nanostructures suitable research targets in different applications [28][29][30][31][32]. The catalytic oxidation of volatile organic compounds (VOCs) has been carried out using the nanostructure catalyst of Fe-Ag-ZSM-5 [28].…”

Section: Introductionmentioning

confidence: 99%

“…Catalysts with the enhanced chemical and physical properties make the hybrid nanostructures suitable research targets in different applications [28][29][30][31][32]. The catalytic oxidation of volatile organic compounds (VOCs) has been carried out using the nanostructure catalyst of Fe-Ag-ZSM-5 [28]. Fe@Ag nanoparticle with calcium alginate beads was prepared for the reduction of nitrophenols [29].…”

Section: Introductionmentioning

confidence: 99%

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Catalytic Activity of Hybrid Iron Oxide Silver Nanoparticles in Methyl Methacrylate Polymerization

2020

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One of the challenges in the preparation of poly(methyl methacrylate) (PMMA) is to develop new catalytic systems with improved efficiency. A hybrid iron oxide silver catalyst holds promise in solving this issue. Catalysts were prepared at room temperature by a two-step technique. First, iron oxide nanoparticles were prepared by the reduction of FeCl3 using sodium borohydride (NaBH4) at room temperature. Second, magnetic nanoparticles doped with a series of Ag nanoparticles (Ag, Ag/3 –amino propyltriethoxysilane (APTES) and Ag/poly(ethyleneimine) (PEI)). The prepared catalysts were characterized using X-ray diffraction (XRD), transmission electron microscopy (TEM), dynamic light scattering (DLS), scanning electron microscopy/energy dispersive X-ray spectroscopy (SEM/EDX), and Fourier-transform infrared spectroscopy (FTIR). The catalytic activity of Fe, Ag/Fe, PEI–Ag/Fe, and APTES–Ag/Fe in methyl methacrylate (MMA) polymerization was investigated in the presence of O2, N2, NaHSO3, and benzoyl peroxide in bulk or solution conditions. The produced polymer was characterized by gel permeation chromatography (GPC) and proton nuclear magnetic resonance spectroscopy (1HNMR). The structures of PEI–Ag/Fe and APTES–Ag/Fe are assumed. The conversion efficiency was 100%, 100%, 97.6%, and 99.1% using Fe, Ag/Fe, PEI–Ag/Fe, and APTES–Ag/Fe catalysts at the optimum conditions, respectively. Hybrid iron oxide silver nanoparticles are promising catalysts for PMMA preparation.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Catalytic Activity of Hybrid Iron Oxide Silver Nanoparticles in Methyl Methacrylate Polymerization

2020

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“…Several methods for the removal of VOCs have been developed. Catalytic oxidation is an effective and economic way for VOCs removal [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

“…But high costs, tendency toward poisoning and being sintered, and sometimes poor thermal stability limit their applications [6]. In recent years, the perovskite-type oxides of the general formula ABO 3 have received increasing attention due to their excellent performance for VOCs oxidation [7][8][9]. In perovskite structure, A and B are two cations of very different sizes, with A atoms being larger than B atoms [10,11].…”

Section: Introductionmentioning

confidence: 99%

An experimental and kinetic study of toluene oxidation over LaMn1−x B x O3 and La0.8A0.2Mn0.3B0.7O3 (A=Sr, Ce and B=Cu, Fe) nano-perovskite catalysts

Tarjomannejad

Farzi

Niaei

et al. 2016

Korean J. Chem. Eng.

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Catalytic oxidation of toluene over perovskite-type oxides of the general formula LaMn 1−x B x O 3 (B=Cu, Fe and x=0, 0.3, 0.7) and La 0.8 A 0.2 Mn 0.3 B 0.7 O 3 (A=Sr, Ce and B=Cu, Fe) was investigated, where the catalysts were synthesized by sol-gel auto combustion method. The catalysts were characterized by XRD, BET, H 2 -TPR, XPS, and SEM. Obtained XRD patterns confirmed the perovskites to be single-phase perovskite-type oxides. Specific surface areas of perovskites were obtained between 25-40 m 2 /g. The perovskite catalysts showed high activity for the toluene oxidation. Based on the results, Fe-containing perovskite catalysts exhibited higher activity than Cu-containing perovskite catalysts. The substitution of Sr and Ce in A-site of the perovskite catalysts enhanced their activity for toluene oxidation. Among different synthesized catalysts in this research, La 0.8 Ce 0.2 Mn 0.3 Fe 0.7 O 3 has the highest activity. Nearly complete elimination of toluene was achieved at 200 o C with this catalyst. Based on Langmuir-Hinshelwood mechanisms, kinetic studies were conducted on toluene oxidation, indicating LH-OS-ND (adsorption of reagents on same types of sites and non-dissociative adsorption of oxygen) as the most probable mechanism which could predict the experimental data with correlation coefficient of R 2 =0.9952.

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Progress on Red Mud-Based Catalysts for the Removal of Environmental Pollutants Through Oxidation and Advanced Oxidation Process

Das

Mohanty

2020

Nanotechnology in the Life Sciences

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Performance of nanostructure Fe-Ag-ZSM-5 catalysts for the catalytic oxidation of volatile organic compounds: Process optimization using response surface methodology

Cited by 10 publications

References 33 publications

Catalytic Activity of Hybrid Iron Oxide Silver Nanoparticles in Methyl Methacrylate Polymerization

Catalytic Activity of Hybrid Iron Oxide Silver Nanoparticles in Methyl Methacrylate Polymerization

An experimental and kinetic study of toluene oxidation over LaMn1−x B x O3 and La0.8A0.2Mn0.3B0.7O3 (A=Sr, Ce and B=Cu, Fe) nano-perovskite catalysts

Progress on Red Mud-Based Catalysts for the Removal of Environmental Pollutants Through Oxidation and Advanced Oxidation Process

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