EFFECT OF THE POLYMER TEMPLATE MODIFICATION ON THE STUCTURE AND PROPERTIES OF THE COPPER NANOTUBES EMBEDDED IN COMPOSITE TRACK-ETCHED MEMBRANES

Abstract

This paper is devoted to the study of the preliminary oxidative modification effects as well as activation and sensitization conditions of PET track etched membranes (TeMs) on the structure of copper nanotubes (NTs) synthesized by the electroless deposition approach. The structure and composition of the synthesized composite membranes was studied by advanced methods such as: UV-Vis spectroscopy, energy dispersive analysis, scanning electron microscopy, X-ray diffraction and gas permeability. The catalytic activity of Cu/PET TeM catalysts obtained under various deposition regimes has been studied using the benchmark reaction of the p-nitrophenol (p-NP) reduction in the presence of the sodium borohydride. It was shown that the highest value of the constant rate of the p-NP reduction reaction was determined for the composites prepared in the modified and double activated PET TeMs. In the temperature range of 16-35 °C, the effect of temperature on the rate of the p-NP dehydrogenation reaction in the presence of composite catalysts based on copper NTs was studiedand the activation energy values were calculated. the lowest values of Ea were determined for samples synthesized in a matrix of unmodified and simple activated PET TeMs.

References

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