Fe3O4/PS magnetic nanoparticles: Synthesis, characterization and their application as sorbents of oil from waste water

Isothermal titration microcalorimetry to determine the thermodynamics of metal ion removal by magnetic nanoparticle sorbents

“…range of pH and water hardness) as well as shown good regenerability and reusability. Though magnetic nanoparticle sorbents have successfully been applied to remove heavy metal ions, 10,[18][19][20][21][22] hydrophobic compounds, [23][24][25] pesticides, 26,27 natural organic matter, 22,28,29 oxyanions 30,31 and emerging organic contaminants, 25,32,33 those studies focused on the synthesis and characterization of physicochemical properties of these engineered nanomaterials, as well as their environmental application. However, the key quantitative thermodynamic data (e.g.…”

Superhydrophobic PCL/PS composite nanofibrous membranes prepared through solution blow spinning with an airbrush for oil adsorption

“…PS has also been used as absorbent. PS/TiO 2 composite nanofibrous membrane prepared through electrospinning has the adsorption ability of 522 mg/g to Cu 2+ in aqueous solution, which is 40 mg/g higher than that of the electrospun chitosan membranes . PS membrane prepared through electrospinning has been used to absorb oil on the surface of water.…”

Robust magnetic polystyrene foam for high efficiency and removal oil from water surface

“…Clearly, the foam was composed of many interconnected micropores with a diameter of about 500 μm and the smooth surface which was changed to be very rough after modification with OA-MPF was reasonable. As was well known, the thicker coating layer was, the weaker magnetic strength became [35]. The wettability of the as-prepared material was carried out by measuring the contact angles of a water droplet and a lubricating oil droplet deposited on the surface of MPF and OA-MPF, as shown in Fig.…”

“…In this paper, the preparation of magnetic Fe 3 O 4 particles coated by oleic acid was reported in our previous work [35]. The magnetic particles were introduced into the foam through ultrasonic dispersion method, and then the highly hydrophobic magnetic polystyrene foam was synthesized by emulsion polymerization, which is one of the most widely applied industrial polymerization processes around the world [36].…”

“…O 4 particles were prepared by solvent thermal method which we reported previously[35]. A typical experiment for synthesis of Fe3 O 4 particles coated by oleic acid (OA-Fe 3 O 4 ) was as follows: 30 mg of as-prepared Fe 3 O 4 particles were dispersed into 10 mL of absolute enthanol by ultrasonication for 10 min until forming a black precursor solution.…”