Progress in silk materials for integrated water treatments: Fabrication, modification and applications

Polycarbonate and activated charcoal-engineered electrospun nanofibers for selective recovery of oil/solvent from oily wastewater

“…In a summary, FTIR study revealed the presence of polar functional groups like C=O, C-O, and O-C-O, which bring polarity onto molecules, thereby repelling the polar groups present in water, which in turn helps in improving the hydrophobicity of nanofibers, and oleophilicity toward oil during oil-water separation experiments [2,5,[8][9][10][11][12][13][14][15].…”

“…There are some conventional methods like gravity-based separation, membrane-based filtration, ultrasonic-based separation, flocculation-coagulation, and adsorption, which have been utilized by the industries and scientific fraternity. However, these conventional techniques possess limitations like poor separation performance over the long period, high operation costs, and the resultant pollution [5,6,8]. Recently, scientific community has been exploring new methods based on oil/ solvent-water absorption, and separation, which utilize nano-functional materials [2,5,[8][9][10][11][12][13][14][15].…”

“…However, these conventional techniques possess limitations like poor separation performance over the long period, high operation costs, and the resultant pollution [5,6,8]. Recently, scientific community has been exploring new methods based on oil/ solvent-water absorption, and separation, which utilize nano-functional materials [2,5,[8][9][10][11][12][13][14][15]. In this sense, more recently, materials exhibiting simultaneous oleophilicity-hydrophobicity (absorption tendency toward oil/ solvents and repulsion toward water) have fascinated the researchers, which demonstrate greater selectivity and separation productivity [2,10,12,16].…”

In-Situ Synthesis of Hydrophobic Polyurethane Ternary Composite Induced by Hydroxyethyl Cellulose through a Green Method for Efficient Oil Removal

“…To date, commercial resins [5][6][7], fibers [8][9][10], mineral products [11,12], and other absorption materials [13,14] are deemed cheap and easy to obtain, and have been developed and widely used in oil-water separation applications. However, these traditional absorbents have some shortcomings, such as poor selectivity, low absorptivity, difficulty in large-scale manufacturing, and complex 1 h to form a uniform water solution.…”

Tailoring the ORR selectivity for H2O2 electrogeneration by modification of Printex L6 carbon with 1,4-naphthoquinone: a theoretical, experimental and environmental application study

“…Although several studies have proposed different methods for the removal of contaminants in wastewater, the treatments are commonly incapable of efficiently removing recalcitrant compounds in low concentration. [9][10][11] Among the alternative methods proposed, advanced oxidation processes (AOPs) can complement the traditional treatments and ensure effective/safe removal of pollutants. AOPs are based on the generation of highly reactive oxygen species, such as hydroxyl radicals ( OH), 1,12,13 and are known to promote non-selective oxidation of a wide range of organic molecules.…”