Polymerinclusion membranes used for selective transport and separation of metallic ions have emerged in recent times. Their expansion depends on the method of preparation and the study of their structure. In this paper, an improvement of a novel category of thin films for performing ion separation was reported. The membranes were elaborated using a mixture of polymers: cellulose triacetate (CTA), polysulfone (PSu) and poly (N, N‐diethyl aminoethyl methacrylate) (PDEAEM), 2‐nitrophenyl pentyl‐ether (NPPE) was used as plasticizer, 15‐crown‐ether‐5 (15‐C‐5) was incorporated into the polymers as a metal ion carrier. The membranes (polymers − plasticizer − carrier) were synthesized using a new method and characterized by various techniques including Fourier Transform Infrared (FTIR) spectroscopy, Thermogravimetric Analysis (TGA) and Scanning Electron Microscopy (SEM). The CTA membranes exhibited well‐defined pores completely filled with the other polymers and plasticizer (NPPE). The surfaces of all synthesized membranes were found to be smooth. Overall, our results showed that the addition of plasticizer with polymers resulted in homogeneous and hydrophobic membranes. As application, quality parameters including electric conductivity, chlorides, bicarbonates and heavy metal (Pb2+) were determined before and after treatment of real wastewater using the synthesized polymeric membranes.

Many of the cast superalloys chosen for specific applications at high temperatures, such as tools devoted for shaping molten glass, are based on nickel or cobalt. They contain chromium and carbon to achieve good resistances against both mechanical stresses and hot oxidation/corrosion, by favoring the formation of reinforcing carbides at solidification and the development of a protective oxide scale of chromia during service. In presence of tantalum or titanium in the chemical composition of the alloys, high performance MC carbides may be obtained but this depends on the base element. One recently observed how the respective proportions of nickel, cobalt and chromium may promote the formation of TiC or TaC at the expense of chromium carbides. The ratings chosen for No, Co and Cr may have high influence on the oxidation of the alloys at high temperature this is what was studied in this work.