Formation of silver nanoparticles on polypropylene microfibrous carriers

Abstract

Methods of physical and numerical experiments are used to investigate formation of quantum dissipative silver nanostructures on polypropylene microfibrous condensed-state carriers under two-stage activation by UV-and microwave radiation. For these two nanoprocessing stages, two different mechanisms of quantum activated silver nanoparticle relaxation are suggested, including dissipation of their energy into the polymeric matrix through the exciton femtosecond and phonon picosecond channels. A comparison of the results of mathematical modeling and physical experiments testifies to the adequacy of these models to the physical processes of self-assembly and self-organization of polymeric biomimetic fibrous material modified by silver nanoparticles.

Superficial acid-base properties of polymer fibres

“…Thus, the results indicate that all the PFM due to the presence of carboxyl groups on the surfaces, enable modification of their surfaces with metal nanoparticles, thereby giving them unique properties, e.g., photocatalytic and bactericidal. The findings agree well with earlier results [20][21][22].…”

Photodegradation of an Herbicide (2-methyl-4-chlorophenoxyacetic acid) in the Presence of “TiO₂, SnO₂, SnO₂/TiO₂ Nanoparticles – Polypropylene Fibrous Carrier” Systems

“…Using the developed technique for applying semiconductor oxide particles to polypropylene carriers [10,11], 3 groups of system samples have been prepared that contain TiO 2 , SnO 2 , SnO 2 /TiO 2 particles on the carrier surface. The content of the catalyst's active component was determined via atom emission spectroscopy technique involving inductively coupled plasma on the ICAP 6300 Duo Thermo spectrometer.…”

Acid-base properties of surface of polymeric fibrous materials

“…Хотя энергия водородной связи невелика, недиссоциированные карбоксильные группы способствуют предварительному закреплению на поверхности волокон металлосодержащих наночастиц. Следовательно, поверхность ПВМ может быть модифицирована металлическими наночастицами, с их последующим закреплением, например, в поле СВЧ излучения, как в работах [11,12].…”