Progress of Nanocomposite Membranes for Water Treatment

Abstract

The use of membrane-based technologies has been applied for water treatment applications; however, the limitations of conventional polymeric membranes have led to the addition of inorganic fillers to enhance their performance. In recent years, nanocomposite membranes have greatly attracted the attention of scientists for water treatment applications such as wastewater treatment, water purification, removal of microorganisms, chemical compounds, heavy metals, etc. The incorporation of different nanofillers, such as carbon nanotubes, zinc oxide, graphene oxide, silver and copper nanoparticles, titanium dioxide, 2D materials, and some other novel nano-scale materials into polymeric membranes have provided great advances, e.g., enhancing on hydrophilicity, suppressing the accumulation of pollutants and foulants, enhancing rejection efficiencies and improving mechanical properties and thermal stabilities. Thereby, the aim of this work is to provide up-to-date information related to those novel nanocomposite membranes and their contribution for water treatment applications.

Fabrication of electrospun polyethersulfone/titanium dioxide (PES/TiO2) composite nanofibers membrane and its application for photocatalytic degradation of phenol in aqueous solution

“…They may also agglomerate in the long run and cut down the organic pollutants removal efficiency because of the significant reduction in their active surface area . Thus, immobilized catalysts should be evolved into a high active surface area so that polymer membranes can be employed for the deposition of TiO 2 nanoparticles on their surface …”

“…10,[14][15][16][17] Thus, immobilized catalysts should be evolved into a high active surface area so that polymer membranes can be employed for the deposition of TiO 2 nanoparticles on their surface. 18,19 Electrospinning method has been used to develop nanofibers from different materials due to their application in numerous processes. Nanofibers are prepared with various diameters ranging from 20 to 1000 nm and have a high surface area to the volume ratio.…”

Oxidation of Copper Nanoparticles Protected with Different Coatings and Stored under Ambient Conditions

“…In the last decade, studies related to synthesis and application of Cu NPs has been of great interest from the academic and industrial point of view, due to its large potential for the replacement of expensive metals like silver and gold nanoparticles in the production of antibacterial and conductive materials [1,2]. Research regarding the use of Cu-based materials continues to grow in many diverse fields, for example, in 2018, its use in membranes for water purification [3], agriculture [4,5], electronics [6,7], catalysis [8][9][10][11], and so on, was reported.…”

Separation and Recycling of Concentrated Heavy Metal Wastewater by Tube Membrane Distillation Integrated with Crystallization

“…Over the past thirty years, membrane-based separation processes have emerged as the most promising techniques in the wastewater treatment field, owing to the significant evolution of membrane technologies [7][8][9]. Among membrane technologies, membrane distillation (MD) is a thermally driven desalination process in which a porous hydrophobic membrane is employed as a physical barrier between the hot feed, where the volatile compounds are evaporated, and the distillate side, where the diffused vapors are condensed [10].…”