We review recent applications of jump models for diffusion in zeolites. We describe the results of a coarse-grained model of the interplay between zeolite anisotropy and disorder, finding that certain disorder patterns can change how anisotropy controls membrane permeation. We show the results of a lattice model for single-file diffusion in zeolite membranes, demonstrating how single-file motio...

Magnetic magnetite (Fe3O4) nanocrystals have been synthesized by combining nonhydrolytic reaction with seed-mediated growth. The shape of these magnetite nanocrystals can be controlled either as pure spheres or a mixture of mainly faceted nanocrystals. Faceted magnetite nanocrystals consist of truncated tetrahedral platelets (TTPs), truncated octahedrons (TOs), and octahedrons (OTs). Transmissi...

Multifunctional nanomaterials showed graet advantages in drug delivery. Folic acid (FA) binding protein, a glycosyl phosphatidyl inositol anchored cell surface receptor for folate, is overexpressed in several human tumors, whereas it is highly restricted in normal tissues. Therefore, in this study, FA, polyethylene glycol (PEG), and Fe3O4 nanoparticles multifunctionalized short multiwall carbon...

Microcystin leucine-arginine (MC-LR), is a hepatotoxic agent produced by cyanobacteria, capable of posing serious threat to the human and ecological environment. In this study, bismuth vanadate (BiVO4)/NaY-Zeolite nanocomposite was intended for degradation MC-LR in aquatic solutions. The response surface methodology (RSM) used optimize operating variables affecting removal. results showed that ...

Spherical microparticles, capable of responding to magnetic fields, were prepared by encapsulating dextran-coated Fe3O4 nanoparticles into chitosan poly(acrylic acid) (PAA) microspheres template. The obtained magnetic microspheres were characterized by transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), X-ray powder diffra...

This report presents a brief review as well as some theoretical background on radon (^Rn) emanation methods from solid samples. This is followed by a description of an experimental apparatus built at the Elliot Lake Laboratory. (Mining Research Laboratory. CANMET, E.M.R.) to measure the ^Rn emanation rate from ^Ra-bearing solid materials by the vacuum emanation method. Experimental data are pre...

In the present study, we have combined several atomic-scale computational techniques [static lattice optimization, density functional theory (DFT), canonical Monte Carlo (MC), and Gibbs ensemble MC (GEMC)] with experiment in order to describe adsorption of water potassium-exchanged X-type faujasite. Indeed, by applying DFT calculations, evidenced a strongly heterogeneous adsorbent surface class...

In this study, the degradation of bisphenol A (BPA) by a magnetite (Fe3O4)/persulfate (PS) system was investigated. The effects dosage, PS concentration, BPA and pH on Fe3O4-activated in degrading were investigated using single factor experiments. identified as factors response surface experimental protocol. Using Box-Behnken analysis, quadratic model with high correlation coefficient (0.9152) ...

Electrothermal Swing Adsorption (ESA), or Joule-Effect heating of adsorbents in a cyclic adsorption process, is an energy-efficient technology on which to base a regenerative protective filter system. In an attempt to define the performance envelope of ESA systems, we evaluated three different ESA media: Activated carbon fiber cloth (ACFC), Carbon Fiber Composite Molecular Sieve (CFCMS), and Mi...