Magnetic zeolite (MZ) as a composite material has been widely applied in many fields of environmental treatment and chemical production [[1], [2], [3]]. Compared with traditional zeolite materials, it not only performs well in adsorption and catalysis, but also features for easy separation from the reaction systems [2,4].
In this study, an operative technique was presented for the synthesis of the magnetically separable γ-Fe2O3@SiO2@ZIF8@Ag photocatalyst. The synthesized nanostructures were identified using various structural analyses, including XRD, EDX/SEM, FTIR, bandgap, and VSM. Their ability to remove norfloxacin (NOR) was then examined by studying …
This result indicates that the present synthetic method can easily and inexpensively produce magnetic film with various morphologies. 4 Conclusions NaX-UP zeolite, created from fly ash, features a significant mesoporous structure …
A magnetic activated biochar-zeolite composite (MACZ) was produced and coated with polyethyleneglycol (PEG) and polyethylenimine (PEI) to produce (PMACZ) and enhance its electrostatic properties for the adsorption of 2 mu m and 15 mu m microplastics.
The calcination of mining tailings favored the production of LTA zeolite, and the influence of the molar ratios, aging and hydrothermal treatment times were determined. ... Magnetic zeolite is the ...
In an attempt to produce magnetic zeolite Al-ZSM-5, El-Din et al. synthesized Fe 3 O 4 nanoparticles from iron chloride solution containing nanozeolites, but the resulting …
Zeolite is a kind of good heavy metal absorbent, and the magnetic zeolite prepared based on zeolite has been used to the heavy metal in Adsorption water.The UV absorber of the magnetic zeolite that the people such as Yuan Mingliang deliver for 2009 on process engineering journal the 9th volume the 4th phase and to Pb 2+ absorption property in, adopt wet precipitation …
Agricultural commodities, particularly cereals can be contaminated with mycotoxins during the pre- and post-harvest stage. The main goal of this study was to evaluate the efficacy of magnetic zeolite nanocomposite (MZNC) as an adsorbent …
The higher the voltage, the higher the electrical current flow. Similarly, the higher the temperature difference, the higher the heat-transfer rate. In addition, the energy supplies of both heating methods are determined based on one gram of zeolite production as 84.6 kJ for magnetic induction heating and 258 kJ for convection oil bath heating.
A novel methodology is presented for the preparation of magnetic zeolite-based catalysts, allowing more efficient radiofrequency heating. These nanoreactors are tested in the …
Purified terephthalic acid (PTA) is widely used in industry as the main raw material for the production of polyester. However, the production process of PTA produces wastewater containing organic matter ... Magnetic zeolite is the combination of adsorption properties of zeolite with the magnetic properties of magnetic oxides which together ...
Magnetic fly ash-based zeolites (MFZ) with good magnetic stability were in situ synthesized from fly ash (FA) modified by Fe3O4 after alkali fusion, hydrothermal treatment, and followed by reduction. The effects of the synthesis parameters of MFZ, such as the loading amount of Fe3O4, NaOH/FA ratio, and SiO2/Al2O3 molar ratio, were investigated as well as …
A novel and cost-effective approach was successfully developed for synthesizing high-performance zeolite 4A encapsulating magnetic particles (magnetic zeolite 4A) using kaolinite and red mud as raw materials via one-step combined activation-reduction and subsequent hydrothermal synthesis. The concurrent reduction of iron compounds in red mud …
Two-dimensional Nuclear Magnetic Resonance. 1. Introduction. Lignin, available as a chemical asset, ... Using biomass templates could help reduce the overall cost of zeolite production, making hierarchical zeolites more economically viable for industrial applications; Secondly, the use of biomass templates during synthesis minimizes the need ...
The synthesis of magnetic 4A-zeolite based on red mud alone has not yet been reported, and the most common method involves a hydrothermal process but limited by long crystallization time (4 h–13 h) [[34], [35], [36]]. ... LTA for water softening opportunities; use of zeolite LTA for catalytic processes, membrane separation, alternate zeolite ...
Methane recovery from bio-wastes is one promising renewable energy to relieve the energy crisis faced around the world. Zeolite is one of attractive exogenous additives for promoting methane production from anaerobic digestion due to its potentials in regulating microorganism enrichment and anaerobic environment. However, the poor electron mediated …
The kinetics of consolidation spent sorbent based on magnetic zeolite after adsorption saturation with cesium (∼23 wt %) under SPS conditions in the range of 700–950 °C was carried out. ... the unique industrial significance of SPS technology for the radionuclides-containing zeolites solidification to produce ceramics was also shown by ...
Scheme 1 explains the enzyme immobilization steps including incorporation of Fe 3 O 4-NPs in to zeolite micropores with APTMS linker, activation of modified magnetic zeolite support by GA, enzyme immobilization on activated MAZE particles, and incorporation of MAZE particles into CMC composite. In brief, zeolite particles and Fe 3 O 4-NPs with a mass ratio of …
A magnetic acid–base catalyst, namely CaO–ZSM-5 zeolite/Fe3O4, was successfully synthesized from waste chicken eggshell and rice husk. This study covered the potential of the synthesized catalyst in direct transesterification of used cooking oil (UCO) containing high free fatty acid (FFA) value. The presence of ZSM-5 zeolite support in CaO is …
In an attempt to produce magnetic zeolite Al-ZSM-5, El-Din et al. synthesized Fe 3 O 4 nanoparticles from iron chloride solution containing nanozeolites, but the resulting materials consisted of a mixture of phases. Some methods involving the functionalization of the zeolites can help to improve some properties such as selectivity and reactivity.
Three steps were employed to produce magnetic 4A-zeolite from red mud. The first step was based on reutilizing Al, Si and Fe components from red mud by using alkali fusion and acid leaching methods. Different mass ratios of red mud/NaOH were prepared, placed in a graphite crucible and calcined in a muffle furnace. ...
nitrogen. The magnetic separation results showed that magnetic 4A zeolite exhibited fast response to external magnetic eld, and the saturation strength measured by VSM was 5.85 emu g−1, indicating the superparamagnetic properties of magnetic 4A zeolite. The removal rate of ammonia nitrogen by FSA-M-1 sample reached to 43.18%.
A novel magnetic nano-zeolite (MNZ@MS) is successfully synthesized, characterized and applied to adsorp heavy metals from solution. In the synthesis of …
A novel and cost-effective approach was successfully developed for synthesizing high-performance zeolite 4A encapsulating magnetic particles (magnetic zeolite 4A) using …
In this paper, a novel grafted zeolite/Fe 3 O 4 /chitosan (ZMC-MAH-TEPA) adsorbent was greenly synthesized and evaluated for the removal of Cr(VI) and Ag(I) in single and bi-component solutions. The characterization data of XRF, XRD, FT-IR, VSM, TGA, BET and SEM showed the successful fabrication of the adsorbent with abundant -NH 2 and -NH- as …
Bauxites are deposits rich in aluminium and iron oxides/hydroxides, formed by the weathering of aluminosilicates rocks under warm and humid conditions. Due to their mineralogical composition, bauxites represent the primary source for aluminum and, subordinately, iron production. However, these sediments rich in Si and Al can be also used as raw material for …
Furthermore, the capacity of magnetic zeolite nanocomposite (MZNC) ... DON potential production of 29 F. graminearum isolates obtained from wheat of north and northwest ranged from 17.82 to 2397. ...
The alkaline medium can dissolve iron and incorporate it into the zeolite matrix producing a different kind of zeolite [20]. A high iron content reduces the conversion efficiency [19], [20], [21]. To diminish the iron amount, the CFA is commonly pretreated by magnetic separation and acid treatments, [20], [22], [23].
Zeolite has a high adsorption capacity for heavy metals, but it is difficult to separate from the medium because of its small particle size. In this study, magnetic zeolite was synthesized from natural, low-grade molybdenum ore by adding nano ferroferric oxide (saturation magnetization 83.43 emu/g) directly in the hydrothermal synthesis process, which was used to …