Polyvinylidene fluoride (PVDF) membranes were exposed vertically to a high energy electron beam (EB) in air, at room temperature. The chemical changes were examined by Fourier Transform Infrared Spectroscopy (FTIR). The surface morphologies were studied by Scanning Electron Microscopy (SEM) and showed some changes in the pore size. Thermogravimetric (TGA) analysis represented an increase in the...

A simple method is described for detecting glycoproteins which had been dot-blotted or electro-blotted on to a polyvinylidene difluoride (PVDF) membrane after sodium dodecyl sulfate (SDS)-polyacrylamide gel electrophoresis. This method is based on the periodate oxidation of glycoproteins on a PVDF membrane with subsequent staining by the chromophoric hydrazide, 4-N,N-dimethylamino-4'-azobenzene...

Membrane technology can minimize spread of viruses in the environment during pandemics, however, its efficiency is highly limited by biofouling. In current study, a composite membrane composed commercial material, poly(vinylidene fluoride) (PVDF), and thermo-responsive attapulgite (t-ATP) was developed. The t-ATP synthesized surface modification (ATP) nanofiber with poly(N-isopropylacrylamide) ...

Due to their stable chemical properties and complex structures, dyes are difficult be removed from water. Herein, a ZIF-67/SA@PVDF (ZSA3@PVDF) mixed matrix membrane has been fabricated by incorporating silicon aerogel (SA) zeolitic imidazolate framework material 67 (ZIF-67) nanoparticles in polyvinylidene fluoride (PVDF) for the removal degradation of The influence SA ZIF-67 on morphology struc...

Membrane distillation (MD) is a useful method for the purification of difficult feedwaters but it cannot be applied in range industries due to pore wetting. In this work, graphene oxide (GO) laminate coatings are explored overcome wetting issues. Air gap MD (AGMD) configuration was considered, using 35 g L −1 NaCl solution with 150 mg (150 ppm) Triton X-100 surfactant as feed material. The GO d...

In this study, a comparison between neat poly(vinylidene fluoride) (PVDF) membrane and composite (PVDF-Nanoclay and PVDF-PVP-Nanoclay) membranes is presented. All membranes were synthesized by the phase inversion process, using 18% PVDF, n-methylpyrrolidone as solvent and water as the non-solvent. Demineralized water cross-flow permeation tests were conducted to evaluate the membranes performan...

Microporous membranes fabricated from hydrophobic polymers such as polyvinylidene fluoride (PVDF) have been widely used for membrane distillation (MD). However, hydrophobic MD membranes are prone to wetting by low surface tension substances, thereby limiting their use in treating challenging industrial wastewaters, such as shale gas produced water. In this study, we present a facile and scalabl...

Layered crystal structures tend to form flat platelet-like crystallites, and nanofibers having such a structure exhibit strip-like morphology. Crystallographic plane forming the dominant surface of can be used for modification with catalytically active nanoparticles capable anchoring surface. In this study, polyvinylidene fluoride (PVDF) exhibiting morphology longitudinal folding were prepared ...

Membrane technology is growing very fast and it is used in several main applications from desalination, water and wastewater treatment to medical, biotechnology and gas separation field. Different membrane processes are applied depending on the applications from more traditional pressure-driven membrane processes (Microfiltration, MF; Ultrafiltration, UF; Nanofiltration, NF) to more advanced on...