Solar-driven interfacial evaporation system has attracted intensive attention owing to its great potential in harnessing renewable solar energy purify water. To further enhance the solar-driven performance, absorber structure with high light-thermal conversion efficiency is especially critical. In this work, polyvinyl pyrrolidone/poly(vinylidene fluoride co hexa fluoropropylene)/CuO-nanorods (P...

Abstract In this study, we aimed at synthesizing polymeric materials consisting of polyvinyl pyrrolidone (PVP) enhanced polyacrylamide (PAM) blend films and optimizing the glass transition temperature ( T g ) synthesized blends. The PAM PVP polymers were blended through solution casting techniques by varying (0.3–1.2 g) (0.3–1 concentrations in parallel. response surface methodology (RSM) exper...

Abstract Chitosan/Polyvinyl pyrrolidone (CS/PVP) semi-natural polymeric blend involving gradient concentrations of ZnS nanoparticles (ZnS-NPS) was prepared via a simple casting method. In conjunction with computational density functional theory approaches (DFT), samples were characterized by UV/Vis spectrophotometric studies and Fourier transform infrared measurements (FTIR) to take into accoun...

In this study, irradiation technique was used to produce copolymer AAc-g-PVP with different ratios of acrylic acid (AAc) and polyvinyl pyrrolidone (PVP). The results showed that hydrogel AAc/PVP ratio 3:1 (w/w) had the highest gel content (94.88%) water swelling degree found be 4 g/g at an adsorbed dose 20 kGy. ability adsorb Pb2+, Cu2+, Mn2+,and Cd2+ ions have been carried out. Results on adso...

We have developed an optical chamber for studying the effect of swelling or shrinking of a gel on the translational diffusion of fluorescent nanoprobes embedded in the gel. On one side of the chamber, the gel is in contact with a hydrating or dehydrating polymeric solution through a porous membrane, allowing control of the rate of hydration or dehydration of the gel. On the other side, a laser ...