Adsorption of formaldehyde at mineral nanoporous sorbents exposed to a pulse magnetic field

Influence of magnetic field on the adsorption of organic compound by clays modified with iron

“…9). In this case the greater influence of the magnetic field was on the particles of the material and not on the MB molecules in solution; this occurred because the phases of iron formed under the surface of this material as γ-Fe 2 O 3 have great magnetic attraction (Bel'chinskaya et al, 2009) and favored particle orientation. The other iron containing clay (FePILC) did not show an improvement as meaningful as FeMAG because the iron phases in this material are inside the clay mineral layers and not exposed like in FeMAG; this property did not help with the organization of the particles in the magnetic field.…”

“…Another very important factor was reported by Bel'chinskaya et al (2009) and refers to the changing morphology of clays exposed to a magnetic field; the surfaces of materials were observed by scanning electron microscopy (SEM) to become more heterogeneous, with consequent increase in surface area and adsorption of formaldehyde. Also Wu et al (2012) reported that an increase in the zeta potential of solutions in contact with the magnetic field caused a decrease in the electrostatic repulsion between the particles of magnetic adsorbent and the adsorption increased.…”

Adsorption of Industrial Pollutants by Natural and Modified Aluminosilicates

“…Natural aluminosilicates are able to interact easily with chemical reagents, modifying through this their surface and structural properties and, as a sequence, their physical-chemical activity. Along with the chemical exposure, aluminosilicates can significantly vary their properties under mechanical, thermal, and recently under physical exposure of magnetic field of different types (ultrahigh frequency (UHF), weak pulse field) [15,16]. This behavior enables scientist unlimited opportunities in varying and targeting the properties of materials, produced based on or involving clay minerals and other silicates.…”

The influence of alkaline treatment on the chemical composition and adsorption-structural characteristics of mineral nanoporous sorbent M45K20

“…The sor bent is a polycomponent porous system consisting of the clay component (montmorillonite (M) 45%) and the zeolite component (clinoptilolite (C) 20%). In addition to the above mentioned major structural components, such minerals as goethite (10%), illite (15%), and calcite (10%) were also present in the sam ple [14,15].…”