Abstract
The amount of copper in the copper sulphide layer and the amount of silver in the modified sulphide layer increased with the prolongation of the period of sulphurization in a polyt hionic acid solution and also of the treating time of the sulph urized sample in a solution of copper salts. X-ray diffraction results showed various copper sulphides, sulphur, silver, and silver su lphide in the samples. Silver sulphide and silver were formed when ion-exchange and reduction-oxidation r eactions took place. A simple route to obtain copper and silver sulphides on polyethylene film is reported.
Highlights
The amount of copper in the copper sulphide layer and the amount of silver in the modified sulphide layer increased with the prolongation of the period of sulphurization in a polythionic acid solution and of the treating time of the sulphurized sample in a solution of copper salts
It was found in the experiments that the sulphur concentration in the polyethylene film (PE) samples kept in the polythionic acid solution increased with time
When the sulphurized hydrophobic polymer was treated with a copper(I–II) salt solution, layers of copper sulphides in a matrix of PE were obtained
Summary
The amount of copper in the copper sulphide layer and the amount of silver in the modified sulphide layer increased with the prolongation of the period of sulphurization in a polythionic acid solution and of the treating time of the sulphurized sample in a solution of copper salts. A simple route to obtain copper and silver sulphides on polyethylene film is reported. In the past few years, studies of materials with layered structures such as various metal chalcogenides have received an ever increasing attention. This has been caused mainly by their interesting physical and chemical properties and their usefulness for various applications. We previously reported the preparation and characterization of copper sulphide layers on polyethylene film (PE) of various densities by the sorption–diffusion method [2,3]. We report a simple route to obtain copper sulphide and silver sulphide layers on the surface of low density polyethylene film by using a solution of a polythionic acid as the precursor of sulphur. For the characterization of the chemical and phase composition of the obtained layers various spectroscopic and X-ray diffraction (XRD) methods were used
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