Synergetic effects of oxidized carbon nanotubes and graphene oxide on fouling control and anti-fouling mechanism of polyvinylidene fluoride ultrafiltration membranes

Hydrophilicity, morphology and excellent adsorption ability of poly(vinylidene fluoride) membranes induced by graphene oxide and polyvinylpyrrolidone

“…1, pure PVDF membrane exhibits the strong hydrophobic characteristic and the contact angle is 80.9 • . This is consistent with the report in the literatures [28,39]. With the presence of 10 wt% PVP, the hydrophilicity of membrane is enhanced and the contact angle is decreased to 65.1 • , which is because that PVP is a polar polymer with many carbonyl groups in the molecular chains.…”

Synergy in hybrid polymer/nanocarbon composites. A review

“…Previous laboratory tests indicate the following possible applications for these composites: hybrid porous electrodes that can feasibly be used for the new generation of energy density supercapacitors [97,98], shielding devices against electromagnetic radiation [99], devices that enhance the dye adsorption and charge recombination process in dye-sensitized solar-cells [100], new generation of ultrafiltration membranes [101].…”

Optimized permeation and antifouling of PVDF hybrid ultrafiltration membranes: synergistic effect of dispersion and migration for fluorinated graphene oxide

“…To further analyze the fouling process, the antifouling performance of different samples was observed by AFM under the tapping mode. The AFM tip was modified according to the procedure described elsewhere (Zhang et al 2013c). We used BSA for the immobilization of a protein on the AFM tips.…”

“…Amine-functionalized multi-walled carbon nanotubes could be used to improve their dispersion capabilities and antifouling property of membranes (Ahmad Rahimpour et al 2012). In our previous work (Ma et al 2013;Xu et al 2014;Zhang et al 2013bZhang et al , 2013cZhao et al 2013c), we had also simply investigated the influence of different blending proportions of oxidized carbon nanotubes and graphene oxide (GO) on permeation and antifouling performance of ultrafiltration membranes, and the results indicated that the stack of GO was effectively inhibited by introducing oxidized carbon nanotubes. Improving the dispersion of nanomaterials was conducive to membrane properties, but majority of nanomaterials embedded in the membrane matrix and the properties of nanomaterials could not be truly exploited.…”