Fabrication and Characterization of Sulfonated Graphene Oxide-Doped Polymeric Membranes with Improved Anti-Biofouling Behavior

Abstract

In this study, cellulose acetate (CA) was blended with sulfonated graphene oxide (SGO) nanomaterials to endow a nanocomposite membrane for wastewater treatment with improved hydrophilicity and anti-biofouling behavior. The phase inversion method was employed for membrane fabrication using tetrahydrofuran (THF) as the solvent. The characteristics of CA-SGO-doped membranes were investigated through thermal analysis, contact angle, SEM, FTIR, and anti-biofouling property. Results indicated that anti-biofouling property and hydrophilicity of CA-SGO nanocomposite membranes were enhanced with addition of hydrophilic SGO nanomaterials in comparison to pristine CA membrane. FTIR analysis confirmed the successful decoration of SGO groups on CA membrane surface while revealing its morphological properties through SEM analysis. Thermal analysis performed using DSC confirmed the increase in thermal stability of CA-SGO membranes with addition of SGO content than pure CA membrane.

Preparation of Polyvinylidene Fluoride Nano-Filtration Membranes Modified with Functionalized Graphene Oxide for Textile Dye Removal

“…Among all the techniques for this purpose, nanofiltration technique plays the largest role. This technology is generally used in wastewater treatment methods because of its low-cost and effective process [5][6][7]. Generally, most polymeric nanofiltration membranes possess flexibility and low cost; however, they have some major issues, such as poor chemical resistance, restricted life period, and fouling of the membrane [8].…”

Synergistic effect of GO/ZnO loading on the performance of cellulose acetate/chitosan blended reverse osmosis membranes for NOM rejection

“…Similar effect of ZnO has been reported in literature when ZnO content was increased in cellulose/ZnO, an increase in contact angle and improvement in hydrophobic character was observed in them 42 . On the other hand, addition of SGO (Sulphonated Graphene Oxide) in CA/SGO composite membrane improved hydrophilic character and exhibited in the form of regular decrease in contact angle [ 49 ]. In these GO/ZnO membranes, the concentration of GO was increased with the decrease in ZnO so both synergized the hydrophilic ability of these membranes.…”

Selective Polyetheretherketone Implants Combined with Graphene Cause Definitive Cell Adhesion and Osteogenic Differentiation

“…This consequence is consistent with previous research results, illustrating that nanographene can eliminate hydrophobicity and promote cell adhesion. 47 , 48 This mechanism may contribute to the strong noncovalent bonding ability of graphene and the microtopography of the composite surface. Some studies have indicated that graphene has a strong noncovalent binding ability.…”