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RISPreparation and characterization of a novel hydrophilic PVDF/PVA/Al 2 O 3 nanocomposite membrane for removal of As(V) from aqueous solutions
In this study, the novel Poly(vinylidene fluoride)(PVDF)/polyvinyl alcohol (PVA)/Al2O3 nanocomposite blend membranes with hydrophilic surface were prepared for the first time and used for removal of Arsenic from aqueous environments. First, PVDF...
Poly (butylene succinate)/polyethersulfone/poly (ethylene glycol) membrane: influence of additive molecular weight and concentration on morphology, properties, and performance of the membrane
In the present study, characteristics of poly (butylene succinate) (PBS)/polyethersulfone
(PES)/poly (ethylene glycol) (PEG) membrane were described in terms of the presence of
hydrophilic and biodegradable additive of PEG in two...
Preparation of hydrophilic nanofiltration membranes for removal of pharmaceuticals from water
in the sublayer in comparison with the net PES membrane. The surface hydrophilicity of the membranes was remarkably enhanced via the presence of Brij 58 in the casting solution, so that, the contact angel diminished from 74.7° to 28.3° with adding 6 wt. % of Brij...
Effect of hydrophilic/hydrophobic nano silica on the performance of polyvinylchloride nanofiltration membrane
The surface properties of nano particles seems to have a major influence on membrane performance, however this factor has not been studied as much as nanoparticle loading. Here we have prepared polyvinylchloride (PVC) ...
Polysulfone/Brij-58 blend nanofiltration membranes: preparation, morphology and performance
In present research, novel asymmetric polysulfone (PSF)membraneswith high hydrophilicity and noticeable rejection of arsenic, as one of the major environmental problems, were prepared from PSF/Brij-58/NMP (1-methyl-2-pyrrolidone) system via...
Preparation of modified polyethersulfone membranes using variation in coagulation bath temperature and addition of hydrophilic surfactant
instrument and experimental set up. The obtained results indicate that the small addition of surfactants in the casting solution along with using the lowest level of CBT
increases hydrophilicity of the PES membranes. Also it was found out that addition...
The dual effect of amino acids on the nucleation and growth rate of gas hydrate in ethane+water, methane+propane+water and methane+THF+water systems
hydrate inhibitors. It considers that the hydrophobic and hydrophilic properties of amino acids play a significant role in the inhibition and promotion of hydrate formation when hydrophobic gas molecules (such as ethane, methane and propane) are only...
The Effect of highly dispersed oxidized multi-walled carbon nanotubes on the performance of PVDF/PVC ultrafiltration membrane
Electron Microscopy
(FESEM), contact angle, and tensile strength techniques. Results showed that hydrophilicity
of membranes was enhanced with increase of F-MWCNTs content. The performance of the
membranes was evaluated in terms of pure...
Preparation and characterization of TiO2: Al doped thin films by spray pyrolysis method –The effects of impurity on the Improvement of Photocatalystic activities
annealing by XRD analysis and UV-VIS spectrophotometer
Keywords: hydrophilic, self cleaning, band gap, spray pyrlolysis technique...
Development of High Performance Nanofiltration Membranes with Hydrophilic Surface for the Removal of Cadmium from Contaminated Water
In present research, novel asymmetric polysulfone (PSF) membranes with high hydrophilicity and noticeable rejection of cadmium, as one of the major environmental problems, were prepared from PSF/PEG400/NMP system via immersion precipitation. Pure...