modified zeolite magnetically

A simple route towards magnetically modified zeolites ...

2003-3-4  In many applications, it would be of practical importance to coat the zeolite surfaces with a magnetic component. Magnetically modified zeolites offer the advantage of easy separation and recovery of powdered zeolites after catalytic runs or after environmental remediation by means of an applied magnetic field.

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A simple synthesis of magnetically modified zeolite ...

2007-8-15  Formation of magnetic modified zeolite (MMZ) was confirmed by magnetization measurements and X-ray diffraction (XRD) pattern analysis. Also, scanning electron microscopic (SEM) analysis reveals the presence of zeolite and magnetite particles.

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A simple synthesis of magnetically modified zeolite

A detailed characterization of our magnetically modified zeolite (MMZ) is given, including powder X-ray diffraction (XRD), nitrogen adsorption and vibrating sample magnetometer (VSM).

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Effects of magnetically modified natural zeolite

The results of magnetically modified zeolite showed that the crosslink density, mechanical properties and damping properties increased significantly.

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A simple route towards magnetically modified zeolites ...

This magnetically modified zeolite enabled the efficient and quick separation of the adsorbent from solution using magnetic separation.

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Preparation of Magnetically Modified Zeolites and the ...

A detailed characterization of our magnetically modified zeolite (MMZ) is given, including powder X-ray diffraction (XRD), nitrogen adsorption and vibrating sample magnetometer (VSM). The results reveal that in comparison with Na-zeolite, the structure of MMZ has no obvious change but its surface area increases from 25.13 m 2 g -1 to 100.90 m 2 g -1 .

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The comparison of natural and magnetically modified ...

The comparison of natural and magnetically modified zeolites as an adsorbent in methyl violet removal from aqueous solutions January 2021 Chemical Engineering Communications

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Effects of magnetically modified natural zeolite

2020-1-16  The results of magnetically modified zeolite showed that the crosslink density, mechanical properties and damping properties increased significantly. The damping ratio in the sample comprising Si + Fe + Z with or without the white oil softener was higher than that of the other samples herein (ζ > 0.03).

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THE PREPARATION OF MAGNETICALLY MODIFIED

In this study, magnetically modified zeolites (MMZ) has been produced and their adsorption, ion-exchange and magnetic properties have been studied. In this study, natural zeolite mineral, clinoptilolite, which belongs to Gördes (Manisa) regions and synthetic 13X zeolite, which has been produced by Sigma-Aldrich firm have been used.

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Magnetically separable Ag/AgCl-zero valent iron

2016-10-15  The magnetically separable Ag/AgCl – zero valent iron particles (ZVIP) impregnated zeolite X (Ag/AgCl/ (x)Fe-ZX) photocatalysts were prepared for tetracycline (TC) degradation. The characterization results showed the Ag/AgCl/ (x)Fe-ZX particles were spherical and crystalline Ag/AgCl was deposited on the surface of the (x)Fe-ZX.

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Cu nanoparticles immobilized on modified magnetic

Magnetically recoverable copper nanoparticle‐loaded natural zeolite (CuNPs/MZN) as an efficient catalyst was synthesized. The Fe 3 O 4 magnetic nanoparticles were immobilized into the pores of natural clinoptilolite zeolite, which were modified with epichlorohydrine and ethylenediamine species and then CuNPs were decorated on the surface of functionalized zeolite (CuNPs/MZN).

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THE PREPARATION OF MAGNETICALLY MODIFIED ... -

In this study, magnetically modified zeolites (MMZ) has been produced and their adsorption, ion-exchange and magnetic properties have been studied. In this study, natural zeolite mineral, clinoptilolite, which belongs to Gördes (Manisa) regions and synthetic 13X zeolite, which has been produced by Sigma-Aldrich firm have been used.

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10.1016/j.mineng.2005.12.006 DeepDyve

The magnetic phase was obtained from ferric sulphate, as well as a small quantity of magnetite that was added to facilitate high gradient magnetic separation. The composite was prepared by the adhesion of iron oxide onto zeolite surface by urethane. These coatings, iron oxide onto zeolite require low viscosity to mix well each other.

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SYNTHESIS, CHARACTERIZATION, AND EVALUATION

This magnetically modified zeolite enabled the efficient and quick separation of the adsorbent from solution using magnetic separation. The ability of this composite to remove Cs + and Sr 2+ from aqueous solutions was assessed and characterized using X-ray diffraction, X-ray fluorescence, Fourier-transform infrared spectroscopy, differential ...

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SYNTHESIS OF IRON-MODIFIED ZEOLITE FOR ARSENIC

2021-1-29  minutes. However, arsenic in solution was best removed by Iron – modified zeolite. The adsorption properties of Iron – modified zeolite depended on pH values and the optimal pH is 7 for arsenic removal with efficiency of 85%. The equilibrium data for Iron – modified zeolite were best fitted to Langmuir isotherm with R. 2 = 0.88, K. L

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Zeolite as Nanomaterial for Water Treatment in a ...

A new technologies and materials stand at front of thescientific interest. Their development leads to technological potential increasing at various fields of industry.Progressive new materials are based on the development of nanotechnologies and nanomaterials, which have a widerange of the applications in manufacturing, medicine and the environment protection.

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Nanozeolites: Synthesis, Crystallization Mechanism,

2021-3-12  This review focuses on the synthesis, crystallization mechanism, and application of colloidal zeolites. The synthesis formulations and features of different zeolite-type structures prepared in nanosized form are summarized. Special attention is paid to zeolites prepared as stable colloidal suspensions. Next, new insights into zeolite crystallization mechanism gained by using colloidal

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HighCOAdsorptionPerformanceofCuCl-Modified ...

2021-1-5  zeolite with CuCl increases CO selectivity from a CO and CO 2 mixture at a temperature higher than room tempera-ture. When polystyrene resin with amine groups was modified with CuCl, its CO adsorption capacity increased 5.7 times [17]. Currently, clay minerals such as halloysite, dolomite, bentonite, Ilmenite, and diatomite have attracted a lot of

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Fabrication of Magnetically Separable Mesostructured ...

2019-5-25  Magnetically separable mesostructured silica with an unobstructed pore system was fabricated through the deposition of cobalt nanoparticles on the outer surface of the submicron-sized silica particles. These cobalt nanoparticles were further protected by a nanometer-thick carbon shell against acid erosion. Due to the fact that the magnetic particles are grafted on the outer surface of the ...

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董彪-电子科学与工程学院 - jlu.cn

2021-4-14  董彪 一、简 历 董彪,男,2008年获中科院长春光机所凝聚态物理博士学位,随后进入吉林大学电子科学与工程学院工作,2011年被聘为副教授,硕士生导师;2012年至2014年在法国诺曼底卡昂大学(CNRS)从事博士...

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Structural characteristics of modified natural zeolite ...

Natural zeolite of Slovak provenience has been modified with magnetic nanoparticles at selected temperatures of 20, 50 and 85 °C with the aim to enhance its sorption properties. The pore, surface and structural properties of zeolite/iron oxide composite were characterized using nitrogen adsorption measurements, electron probe microanalysis and powder X-ray diffraction. The crystallinity of ...

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SYNTHESIS OF IRON-MODIFIED ZEOLITE FOR ARSENIC

2021-1-29  minutes. However, arsenic in solution was best removed by Iron – modified zeolite. The adsorption properties of Iron – modified zeolite depended on pH values and the optimal pH is 7 for arsenic removal with efficiency of 85%. The equilibrium data for Iron – modified zeolite were best fitted to Langmuir isotherm with R. 2 = 0.88, K. L

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Silver- Zeolite-Modified Electrodes: An Intrazeolite ...

2017-2-15  electrodes. The zeolite-modified electrodes were prepared as described elsewhere.' The coatings contained 20 ,ug of zeolite and ca. 0.2 pg of polystyrene. The Ag+-A-modified glassy carbon electrodes with different Ag+-exchange degree were prepared by the following proce- dure: Prior to Ag+ ion exchange, the Na-A-modified electrodes

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A Hantzsch condensation reaction / Dihydropyridine

2018-7-3  Competence of Nanoporous Modified Zeolite-Beta has been observed at various parameters (i.e. different solvent, temperature, catalyst concentration ... /chitosan as a magnetically recyclable heterogeneous nanocatalyst[18], P 2 O 5 [19], ionic liquid triethylamine hydrogen sulphate [Et 3

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Zeolite as Nanomaterial for Water Treatment in a ...

A new technologies and materials stand at front of thescientific interest. Their development leads to technological potential increasing at various fields of industry.Progressive new materials are based on the development of nanotechnologies and nanomaterials, which have a widerange of the applications in manufacturing, medicine and the environment protection.

More

HighCOAdsorptionPerformanceofCuCl-Modified ...

2021-1-5  zeolite with CuCl increases CO selectivity from a CO and CO 2 mixture at a temperature higher than room tempera-ture. When polystyrene resin with amine groups was modified with CuCl, its CO adsorption capacity increased 5.7 times [17]. Currently, clay minerals such as halloysite, dolomite, bentonite, Ilmenite, and diatomite have attracted a lot of

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Molecules Free Full-Text Photo-Reduction of CO2

A new hybrid photo-catalyst based on ZSM-5 zeolite suitable for reduction of carbon dioxide was synthesized. The photo-catalyst was prepared by oxidative polymerization of thiophene with FeCl3 in the presence of ZSM-5 with participation of ultrasound. The synthesized photo-catalyst strongly absorbs light radiation up to approx. 650 nm, with the absorption edge in the NIR region.

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Fabrication of Magnetically Separable Mesostructured ...

2019-5-25  Magnetically separable mesostructured silica with an unobstructed pore system was fabricated through the deposition of cobalt nanoparticles on the outer surface of the submicron-sized silica particles. These cobalt nanoparticles were further protected by a nanometer-thick carbon shell against acid erosion. Due to the fact that the magnetic particles are grafted on the outer surface of the ...

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Degradation of ciprofloxacin by TiO2/Fe2O3/zeolite ...

The zeolite X was prepared by the same method without adding TiO 2. 2.3 Characterization and analysis A D/MAX-2500 diffractometer (Rigaku, Japan) was applied to characterize the crystalline phases of the final products using Ni-filtered CuK radiation and a scan range of 10–80° at a scanning rate of 0.02° s −1 .

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Removing nitrogen and phosphorus simultaneously in ...

To gain further insights into the composition to be modified, the XPS spectra of zeolite before and after were analyzed. Compared with the wide-scan XPS of natural zeolite ( Figure 4 ), new peaks appeared on the surface of Z/Na/Zr at 1,071.8 eV, 180.8 eV, and 182.8 eV, which corresponded to Na 1s, Zr 3d2/5 and Zr 3d3/2, proving the successful ...

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