The possibility of recovering lead-loaded zeolite Y microparticles (PbY) by flotation after sulfidation was investigated using amyl xanthate (AMX) as the collector. …
Voltammetric analysis of lead-loaded zeolites after sulfidation. Prior to discussing the electrochemical behavior of (partially) sulfided lead-loaded zeolites, one has to consider the electrochemistry of lead(II) ions exchanged in the zeolite material. Actually, this topic has only been reported in two papers [32, 46].
Catalytic ozonation of penicillin G using cerium-loaded natural zeolite (CZ): Efficacy, mechanisms, pathways and toxicity assessment ... to 9.0, the electrostatic repulsion between deprotonated PG and negatively charged catalyst might lead to the reduction in PG removal efficiency. Therefore, the initial pH 4.5 without any adjustments …
Research on pure samples of HEU-type zeolites modified by d- and f-block transition elements and Pb is reviewed.The interest on such modified HEU-type zeolites …
The diameter of zeolite will directly affect its porosity and specific surface area, thus affecting its adsorption performance. Fig. 1 is the physical and scanning electron microscope picture of the silver zeolite filter used in this work. The silver zeolite sample studied in this paper is shown in Fig. 1 a, which is the basic material of the silver zeolite …
Section snippets Sample preparation. For the preparation of zeolite loaded bentonite, the molar ratio of SiO 2 /Al 2 O 3 in the raw material was kept at 2.0, which was proved to be the optimal synthesis conditions for Na-A zeolite [24]. A certain amount of sodium bentonite was firstly added into 100 mL deionized water, followed with 4 h …
Dye-loaded zeolite L host-guest materials have been successfully used in the realisation of efficient light- ... host lead to supramolecular organisation of the guests in the channels. Thus very ...
Zeolite NaY was also successfully used to incorporate docetaxel, an anticancer drug, and protoporphyrin IX, a photosensitizer in a combined therapy using photodynamic therapy and chemotherapy . Finally, zeolite Y was loaded with temozolomide (TMZ), a chemotherapeutic drug conventionally used to treat glioblastoma …
Zeolite, a super-absorbent mineral common in litter, can also sop up lead contamination in your backyard.. While lead contamination isn't a typical concern for most people, a curious case in Los Angeles …
This study investigates the ability of natural clinoptilolite zeolite as a low-cost adsorbent for removing heavy metal ions, specifically lead, cadmium, and cobalt, from the aquifer in the Varamin region in a discontinuous absorption system. Characterization techniques such as XRD, XRF, ICP-MS, BET, and FESEM were used to analyze the …
However, the limited solubility and rapid elimination of curcumin lead to poor bioavail - ability after oral usage or topical administration [22, 23]. As a consequence, curcumin needs to be applied in ... Curcumin-loaded zeolite as anticancer drug carrier 5 Å. The beads were converted to powder before use by grinding in a ceramic mortar. The ...
To address this limitation, an innovative approach has been applied in this research where MIL-53 (Cu) is loaded onto the surface of the zeolite. After pyrolysis, it was determined that a composite of copper and its oxides, enclosed in a carbon nanocarbon shell C 60 and C 70, has been loaded onto the surface of the zeolite. This inexpensive ...
The possibility of recovering lead-loaded zeolite Y microparticles (PbY) by flotation after sulfidation was investigated using amyl xanthate (AMX) as the collector. The sulfidation process (by aqueous Na2S) was first studied as a function of the medium composition (Na2S concentration, pH), and the s …
Geometrical constrains of the host lead to supramolecular organisation of the guests in the channels. ... Embedding dye loaded zeolite materials in a polymer matrix has been discussed recently [8]. Another possible way is to specifically modify the entrances of the one-dimensional channels [9], [10]. Both options have been …
The possibility of recovering lead-loaded zeolite Y microparticles (PbY) by flotation after sulfidation was investigated using amyl xanthate (AMX) as the collector. The sulfidation process (by aqueous Na2S) was first studied as a function of the medium composition (Na2S concentration, pH), and the solid phases were characterized by …
Soliman and Mahmoud also reported that zeolite loaded with micronutrients mixed with organic fertilizer greatly increased the uptake of N, P, K, Zn, Fe, Mn, B, Ca, …
The possibility of recovering lead-loaded zeolite Y microparticles (PbY) by flotation after sulfidation was investigated using amyl xanthate (AMX) as the collector. …
In a similar study by Zadehnajar and her colleagues, it was reported that the PCL/gelatin nanofibers loaded with carbon nanotubes had a diameter of 268 ± 51 nm . In another study, Doustdar and Ghorbani loaded zif-8 nanoparticles in cellulose/polyvinylpyrrolidone electrospun mats and reported the fiber mean diameter …
Fig. 1 shows the X-ray diffraction patterns of the studied materials, being displayed on the left and on the right hand sides respectively; (a) the initial samples: natural Zeolite and Mt; (b) functionalized composites: Z–nZVI, and Mt–nZVI and (c) Z–nZVI/Pb 2+ and Mt–nZVI/Pb 2+ composites after Pb 2+ sorption. On the left hand side of Fig. 1 (a), …
Voltammetric analysis of lead-loaded zeolites after sulfidation. Prior to discussing the electrochemical behavior of (partially) sulfided lead-loaded zeolites, one …
Zeolite SSZ-13: A New Class of High-capacity and High-efficiency Low Tem-perature CO and NOx Adsorbers ... which may lead to differences between this version and the Version of Record. To be cited as: ... Metals loaded into zeolites have become enormous ly important in recent years due to the ability of their pores to confine metal species .1-16
factant-modified zeolite and nutrient-loaded zeolite can be used as a kind of slow-rel ease fertilizer to supply long- lasting nutrients for crop grow th [3,4].
Dye-loaded zeolite L host-guest materials have been successfully used in the realisation of efficient light-harvesting antenna systems. ... This energy transfer can lead to the formation of ...
The surface morphology and functional groups of NZVI, zeolite, and Z-NZVI are shown in Fig. 1. Fig. 1 a shows that bare NZVI obviously aggregated to form chain-like structures due to magnetism and van der Waals forces (Lu et al., 2016; Wu et al., 2019).Conversely, spherical nanoparticles (<100 nm) were well-dispersed on the surface …
The solid/liquid separation of zeolite particles from aqueous suspensions by froth flotation was investigated as a function of various experimental parameters and …
In the literature reviewed, the research team of Ye Ming lv and Tang Jing juan et al. studied the adsorption of silver-loaded zeolite on radioactive iodine containing waste gas, indicating that silver-loaded zeolite has good adsorption effect and large adsorption competence because the radioactive iodine containing waste gas contains nitrogen …
Ag-loaded antibacterial zeolite materials were prepared by a solid phase ionic exchange approach with small NaA zeolite crystals synthesized by sol–gel method as carrier, NH 4 NO 3 and AgNO 3 as raw materials. The influence of AgNO 3 amount, reaction temperature, and reaction time on silver load in the zeolite was investigated. …
The Pb loaded clinoptilolite tuff is then excreted via the feces. ... M. & Vukojević Medvidović, N. Removal of zinc, copper and lead by natural zeolite—a …
The XRD spectra were realized on the different zeolites (Fig. 2), pure and copper loaded in order to check the conservation of the crystallinity of zeolites.In this aim, pure zeolites were compared to their homologues loaded with copper. The zeolite A presents four major peaks (†) at 9.8° ( relative intensity), a double peak at …
3. Results and discussion 3.1. Effect of reaction conditions The results of n-heptane isomerization at 230 over various Pt-loaded zeolite catalysts are shown in Table 1. Data were collected at 1 h on stream. HM and HY are dealuminated mordenite and dealuminated Y type zeolites, respectively. Si/A1 ratios of HY, HM and H/3 are 7, 13, …
The natural zeolite is modified in turn by using 1 mol / L Na Cl solution,1 mol / L HCl solution,and 0. 2 mol / L Ag NO3 solution. And then it is calcined in a muffle furnace at 450 ℃ temperature for 2hours in order to get the adsorbent of silver-loaded zeolite. The adsorption characteristics of bromide onto silver-loaded zeolite are studied by static …
Exposure of dry Ag +-loaded zeolite A to H 2 S leads to the formation of luminescent silver sulfide clusters [1], [11], [12].A different behavior was observed when exposing the gold-loaded samples to H 2 S. We compared exposures to H 2 S (g) and H 2 (g) to find out whether sulfides were formed or gold ions were reduced. Absorption …
@article{Chen2023SynthesisOH, title={Synthesis of hierarchical porous ceramsites loaded with GIS-P1 zeolite crystals for removal of ammonia nitrogen from aqueous solution}, author={Yuxin Chen and Wensheng Xu and Ning Wang and Shengli An and Jun Peng and Jihua Peng and Xi-wen Song}, journal={Journal of Environmental …
The contribution of CCS to the lead sorption was due to it was reported in some studies that composites prepared by addition of CS to clay [45] or zeolite [46] were successfully utilized for the removal of water pollutants. Moreover, CS is known as a biocompatible biopolymer which is non-toxic, antibacterial and low cost.
Moreover, FAU-type zeolite materials appear to be perfect carriers for Gd 3+ ions owing to their ion-exchange capability. 61 After several safety and efficacy evaluations, microparticulate Gd 3+ loaded zeolite NaY has been verified as an oral contrast agent. 64 Based on clinical Phase II/III multicenter research, it is concluded that the oral ...
In this study, struvite-loaded zeolite (SZ) obtained by nutrient recovery from biogas slurry was prepared and used as a soil amendment to treat the combined pollution of Cu, tetracycline (TC) and ...
Ag-loaded antibacterial zeolite materials were prepared by a solid phase ionic exchange approach with small NaA zeolite crystals synthesized by sol–gel method as carrier, NH4NO3 and AgNO3 as raw ...
