This research attempts to find a new approach for the removal of arsenic (As) from drinking water by developing a novel solution. To the author's knowledge, iron-loaded activated carbons (Fe-AC) have not been previously applied for the removal of As in a synergistic process using ozonation and catalytic ozonation processes. The As was …

Fe and Ni nanoparticles-loaded zeolites as effective catalysts for catalytic reduction of organic pollutants - ScienceDirect Abstract Introduction Section snippets …

2.2. Preparation of Fe (II)/Y and Fe (III)/Y catalysts. Iron loaded zeolite Y (Fe(II)/Y) catalyst was prepared by dissolving Fe (II) sulphate heptahydrate (FeSO 4 7H 2 O) that acted as a Fe (II) precursor in distilled water. Afterwards, a known amount of zeolite Y was added to the iron solution to yield a final Fe loading of 1.0 wt.% and the mixture was …

ZSM-5, one type of aluminum-containing zeolites, is one of the most important catalysts in organic synthesis, efficient ion exchanger, and adsorbent [ 5, 6 ]. Its unique …

Activated carbon, zeolite and hypercrosslinked polymeric resins are listed as the 3 main adsorption materials for controlling VOCs by the US EPA, especially activated carbon, which is the most widely used adsorption material. The metal organic frameworks material has a large specific surface area and rich surface chemical functional group.

Fe-containing zeolite seed sol enhanced the distribution of the Fe species that exists mainly in the zeolites' framework and in a small amount in oligomeric Fe x O y clusters. Fe-MFI zeolite catalysts were applied in the direct hydroxylation of benzene to phenol with H 2 O 2. Under optimized conditions, Fe-MFI zeolite synthesized from Fe ...

Almost all the transition metal oxides have the potential for VOCs catalytic oxidation. Cu, Mn, Co and Fe are the common transition metals loaded on zeolite to trigger this process. Soylu et al. (2010) examined these four kinds of oxides supported on natural clinoptilolite-type zeolites to completely degrade toluene.

The work evaluates the performance of catalytic ozonation process on iron-loaded zeolite 4A (Fe-Z4A) for the chemical oxygen demand (COD) reduction of municipal wastewater. ... part of the organic ...

The structure analysis of PST-30 zeolite showed that it had a 2D micropore consisting of 8-MRs (4.2 × 4.4 Å) and 10-MRs (4.7 × 6.7 Å). This special micropore system of PST-30 zeolite displayed excellent catalytic performance in the skeletal isomerization of the 1-butene to isobutene reaction. The targeted synthesis of the novel zeolite ...

of oxygen and nitrogen on the zeolite. Serbezov et al. [4] introduced a nonisothermal model for adsorption of air pollutant on the 5A zeo-lites. Gorbach et al. [5] performed some experimental data in the case of water vapor adsorption on the 4A zeolite and introduced its isotherm in the large area of water vapor pressure and temperature.

loaded zeolite proved to be effective in the removal of an organic pollutant (xanthate) from model and clarified wastewater from flotation of zinc-lead ore [32]. The above described suggests that zeolite loaded with Ag+ ions could be used as a multifunctional reagent in the treatment of waters contaminated with cations, anions and

Various primary and secondary amines namely monoethanolamine (MEA), ethylenediamine (ED) and isopropanol amine (IPA) have been immobilized on zeolite …

The synthesis of amine loaded zeolite 13X was also carried out by refluxing the zeolite beads with respective amine solution at 70 ... Since amine is a source of organic carbon, TOC technique can be used indirectly to estimate the amine content. The TOC of the initial and residual amine solutions were analyzed using a non-dispersive infrared ...

Compared with chemical coagulant and natural zeolite, the organic recovery efficiency from the effluent of the MZs improved, and after the optimization process, the organic ... the coagulation effect of the loaded metal ions/metal oxides and the physical and chemical adsorption effect based on the hydrogen bond and ππ bond between the MZ …

A novel type of organic–inorganic zeolite-based hybrid material with excellent luminescence properties was synthesized. Firstly, we synthesized CdS QD loaded zeolite crystals as a hybrid matrix through ethanol solution reaction of sulfide ions and cadmium exchanged zeolite crystals. After that, we functional

Volatile organic compounds (VOCs) as common precursors for PM 2.5 (inhalable particles with diameters that are generally 2.5 μm and smaller) ... When a noble metal is loaded on the zeolite, the catalytic activity is highly associated with the type, structure and dispersion of this noble metal.

Combinatorial Synthesis of Covalent Organic Framework Particles with Hierarchical Pores and Their Catalytic Application. Journal …

Phosphine (PH3) is a highly toxic air pollutant commonly used in the semiconductor and optoelectronic industries, but it has received less research attention due to its handling difficulty. In this study, metal (Cu, Zn, or Mn) loaded ZSM-5 and Y zeolite adsorbents are first prepared for the adsorption of PH3 toxic gas. The physical and …

Zeolites Abstract Conspectus Loading metal nanoparticles on the surface of solid supports has emerged as an efficient route for the preparation of heterogeneous …

Ce(IV)-loaded Y-zeolites (CeY) were prepared for selective removal of the trace amount of organic sulfur compounds from hydrodesulfurization (HDS)-treated diesel oil. The CeY samples can be obtained from NH 4 –Y-zeolite (NH 4 Y) using liquid-phase ion-exchange and solid-state ion-exchange methods. The ion-exchange reactions, …

Natural zeolites have advantages over other cation exchange materials such as commonly used organic resins, because they are cheap, ... (XAS) is a particularly useful method for the characterization of metal-loaded zeolite samples. Information on the oxidation state of metals, like copper, zinc, chromium, arsenic and many others, in …

of organic pollutant diluted in liquid or gaseous phases [1–5]. In the present study, FAU zeolite (Y-zeolite, X-zeolite) was synthesized utilizing the pretreated steel slag and the influences of treatment procedure was evaluated. Further-more, the synthesized FAU zeolite was applied as the support of TiO 2 photocatalyst. The local structure ...

The zeolite 5A is a calcium zeolite having the composition Ca4,5 [(AlO 2)12(SiO 2)12] nH 2 O. The catalyst was loaded with Fe +3 by the impregnation method [ 47 ], and the presence of iron on the catalyst was confirmed by FTIR analysis, using PerkinElmer (USA) spectrum 400 analyzer.

In this study, struvite loaded zeolite (S-NZ) was prepared by synchronous reclaiming nitrogen and phosphorus from swine biogas slurry, and its adsorption and coadsorption of Cu(II) and TC in wastewater was systematically investigated by studying solution pH, kinetic, adsorption isotherms, sequential addition of Cu(II) and TC as well as …

Combinatorial Synthesis of Covalent Organic Framework Particles with Hierarchical Pores and Their Catalytic Application. Journal of the American Chemical Society 2023, Article ASAP. ... Nickel-Loaded SSZ-13 Zeolite-Based Sensor for the Direct Electrical Readout Detection of NO2. Industrial & Engineering Chemistry Research 2021, …

The removal of organic pollutants by catalytic ozonation was briefly summarized. ... in which iron coated zeolite, granular activated carbon or γ-alumina catalysts were employed. (4) Other metal oxides ... Efficiencies and mechanisms of ZSM5 zeolites loaded with cerium, iron, or manganese oxides for catalytic ozonation of …

We have extended the investigations on energy migration in pyronine‐loaded zeolite L crystals as donor molecules, modified with oxonine as luminescent acceptors (traps) at the crystal ends. The preparation procedure reported and the extended zeolite materials now available lead to a large improvement of the energy migration efficiency.

The above researchers offered the following explanation for the advantages of using zeolite or mesoporous support for titania in photocatalysis: (1) formation of …

In this study, Fe-Cu binary oxide was loaded on zeolite (Fe/Cu/zeolite) to be used as heterogeneous Fenton catalyst, and the catalytic degradation of carbamazepine (CBZ) were optimized at near ...

In this study, Fe-Cu binary oxide was loaded on zeolite (Fe/Cu/zeolite) to be used as heterogeneous Fenton catalyst, and the catalytic degradation of carbamazepine (CBZ) were optimized at near-neutral pH. The results showed that the Fe and Cu oxide, mainly Fe2O3, Fe3O4, and CuO nanoparticles, were uniformly distributed on the surface …