Abstract:
In the paper, the catalytic activity of composites based on gold nanotubes and ion track membranes
was studied using bench reaction of the p-nitrophenol (4-NP) reduction in the temperature range of 25-
40 °C. The efficiency of the prepared catalysts was estimated on the rate constant of the reaction and
by conversion degree of 4-NP to p-aminophenol (4-AP). The comprehensive evaluation of the structure
was performed by X-ray diffraction and scanning electron microscopy. A decreasing of the composites
activity was observed when the reaction were carried out at the temperature over 35 °C, due to an increased average crystallite size from 7.31±1.07 to 10.35±3.7 nm (after 1st run). In temperature range of
25-35 °C the efficiency of the composite catalyst was unchanged in 3 runs and decreases by 24-32 % after the 5th run. At the high temperature of 40 °C after the 5th run the composite become completely
catalytically inert. Copyright © 2018 BCREC Group. All rights reserved
