Synthesis and Characterization of Ag₂S Layers Formed on Polypropylene

Abstract

Silver sulphide, Ag2S, layers on the surface of polypropylene (PP) film was formed by chemical bath deposition method (CBD). Film samples were characterised by X-ray photoelectron spectroscopy (XPS), attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopy, scanning electron microscopy (SEM), atomic force microscopy (AFM), and X-ray diffraction analysis (XRD). The surface morphology, texture, and uniformity of the silver sulphide layers were formed on PP surface dependent on the number of polymer immersions in the precursor solution. XPS analysis confirmed that on the surface of the polypropylene film, a layer of Ag2S was formed. ATR-FTIR and FTIR spectra analysis showed that the surface of Ag2S layers is slightly oxidized. All prepared layers gave multiple XRD reflections, corresponding to monoclinic Ag2S (acanthite). The Ag2S layer on polypropylene was characterized as an Ag+ion selective electrode in terms of potential response and detection limit. The electrode was also tested as an end-point electrode for argentometric titration of thiamine hydrochloride.

Antibacterial Properties of Mussel-Inspired Polydopamine Coatings Prepared by a Simple Two-Step Shaking-Assisted Method

“…ATR-FTIR spectra confirmed the formation of PDA coatings and the presence of the expected chemical functionalities on the surface of the mesh samples (Figure 3 and Figure S3). All the mesh samples exhibited peaks associated with PP such as 2,916 cm −1 (C–H bands), 1,457 cm −1 (–CH 2 ), and 1,379 cm −1 (–CH 3 ) (Krylova and Dukštienė, 2013). Spectra of all the PDA-coated meshes contained additional peaks at 1,509 cm −1 (C = N of indole amine), 1,602 cm −1 (C=C of benzene ring), 1,723 cm −1 (C=O of quinone), and 3,100–3,700 cm −1 (N–H and O–H stretch vibration) (Patel et al, 2018).…”

Cation exchange assisted low temperature chemical synthesis of ZnO@Ag2S core–shell nanoparticles and their photo-catalytic properties

“…Finally, the S 2p3/2 spectrum shown in Fig. 3d, indicates two peaks at about 160.9 eV and 163.3 eV, and according to the NIST XPS date base [33], the S 2p3/2 peak at 160.8 eV is assigned to AgeSeAg bonding of Ag 2 S which can be another evidence of the formation of ZnO@Ag 2 S CSNPs. Fig.…”

Modification of polyamide-CdS-CdSe composite material films with Ag using a cation–cation exchange reaction

“…Finally, the Se3d region has one doublet with a Se3d 5/2 peak at 55.2 eV due to selenium species in CdSe-CdS compounds [4]. A new doublet in Ag3d appeared after AgNO 3 solution treatment with a Ag3d 5/2 peak 368.2 eV due to the Ag + found in silver chalcogenides [23]. However, no Cd3d and S2p peaks were observed in AgNO 3 treated PA-Cd-Se-S-Ag-1 sample with S and Se signal at the detection limit (∼0.5%) showing little or no detectable CdSe and CdS on the sample surface.…”

“…A major limitation for wide practical use as a water oxidation photocatalyst is photo corrosion upon irradiation [19]. However, its band gap of 1 eV makes it applicable for infrared (IR) detectors, as a photoconductor [20], a photosensitive material for recording media [21], solar selective coatings [22] and in ion-selective electrode membranes [23]. Similarly, silver(I) selenide (Ag 2 Se) is a superionic conductor material.…”