Novel chitosan/poly(vinyl) alcohol thin adsorptive membranes modified with amino functionalized multi-walled carbon nanotubes for Cu(II) removal from water: Preparation, characterization, adsorption kinetics and thermodynamics

Carbon Nanomaterials Based Membranes

“…Reinforcement of CNT into the polymeric membrane could enhance performances such as high flux, improve permselectivity, better mechanical properties and improvement of other functional properties for an example antifouling property [13][14]. Reinforcement of amino functionalized MWNT in the chitosan/polyvinyl alcohol (CS/PVA) matrix formed ensures better dispersion and distribution of functionalized MWNT, formed compact structure with improved mechanical property of weak pure CS/PVA adsorptive membrane [15].…”

“…Functionalized MWNT reinforced adsorptive membrane could be used to remove metal ions from the aqueous solution. Functional groups on MWNT can provide additional functionalities for the metal ion adsorption further creation of nano channel by the nanofillers reduces diffusive hindrance and provide supplementary pathways for the transport of metal ion to the active sites for the effective adsorption [15].…”

Porous Chitosan-silica-polyethylene Glycol Membrane for Dynamic Adsorption of Binary Mixtures Cu(II) and Zn(II) Ions

“…The conventional treatments used to remove heavy metals from wastewaters are precipitation, coagulation, reduction, solvent extraction, electrochemical separation through membranes, ion exchange and adsorption [1], [2], [5], [6]. These methods usually concentrate the metal ions into a smaller volume followed by recovery or secure disposal.…”

“…These methods usually concentrate the metal ions into a smaller volume followed by recovery or secure disposal. Recently, membrane adsorption has appeared as a powerful technique for removal of heavy metal ions from effluents [6], [7]. Compared to the conventional methods e.g.…”

One pot blending of biopolymer‐TiO2 composite membranes with enhanced mechanical strength

“…Because of its nontoxicity, biodegradability, hydrophilicity, unique polycationic nature, and good film-forming characteristics, CTS and its derivatives have been considered as a promising membrane biopolymer for pervaporation, ultrafiltration, reverse osmosis, gas separation, or purification processes. [1][2][3][4][5] However, the poor mechanical performance and swelling in aqueous solutions of the CTS membrane greatly restrict its application. 6 To improve the mechanical properties and control membrane swelling, much attention in CTS has been paid to the introduction of cross-linked structure to membrane, 7,8 blending of CTS with other polymers, 9 casting CTS solution on another membrane surface to form composite membranes, 10,11 and developing organic-inorganic composite membranes.…”