ZnO/WO3.H2O micro-nanostructures coated mesh for efficient separation of oil-water mixture

Superhydrophilic Photothermal-Responsive CuO@MXene Nanofibrous Membrane with Inherent Biofouling Resistance for Treating Complex Oily Wastewater

“…It is therefore essential that P be sufficiently high to abrupt seepage of oil through the NFM. This fundamental correlation is given by the equation italicP = ρ italicg italich max where ρ denotes the density of oil, g denotes the acceleration due to gravity, and h max denotes the optimum oil height. , Based on our experiments, the resultant NFM can endure toluene up to a height of 65 cm for 30 min without passing through it. This implies that there was no oil leakage through NFM, even under a pressure of 5.5 kPa.…”

Multifunctional applications of amino functionalized Ti3C2Tx: high flux oil/water separation and dye removal

“…Therefore, TN-AEAPTMS@PU showed excellent hydrophilicity (WCA = 01) and superoleophobicity (UWOCA = 161.21) underwater. So, the micro-nano hierarchical structural TN-AEAPTMS with high surface energy constructed on the PU framework 13,17,20,[50][51][52][53] provided a good condition for PU to achieve superhydrophilic/ underwater superoleophobicity.…”

“…7,8 One category is superhydrophobic-superoleophilic materials, which can allow oil to easily penetrate into the material and block moisture, 9,10 and another category is superhydrophilic-underwater superoleophobic materials, which can permit water to penetrate through the material and block oil. [11][12][13] For the past few years, other materials for the separation of immiscible oil/water mixtures have been prepared using MXene, graphene oxide (GO), TiO 2 , chitosan, and MnCo 2 O 4 . [14][15][16][17] Simultaneously, oily wastewater is mainly composed of oil/water mixtures and soluble dyes in complex mixtures, requiring more innovative material development to achieve the purification of complex oily wastewater.…”

“…Fig. 6 Separation processes of TN-AEAPTMS@PU for (a) cyclohexane/water and (b) dichloromethane/water mixtures; (c) separation efficiency and separation flux of TN-AEAPTMS@PU for different oil/water mixtures (average of 15 cycles); (d) oil/water mixture separation performances of various materials 13,17,20,[50][51][52][53]. …”

Green Preparation of a Carboxymethyl Cellulose-Coated Membrane for Highly Efficient Separation of Crude Oil-In-Water Emulsions

“…In addition, MOFs are a kind of organic–inorganic hybrid materials with high porosity, large specific surface area, and low density. , It is noteworthy that there are many possibilities for the combination of metal ions and organic ligands, so they have adjustable structures and chemical properties. , As one of the most widely used MOFs, ZIF-8 is used in the preparation of oil/water separation membranes due to its superior hydrothermal stability. ,, ZIF-8 nanoparticles are inherently hydrophobic, and there are problems such as poor dispersion and particle agglomeration in the aqueous solution. , Surprisingly, further hydrophilic modification of ZIF-8 greatly broadens its application range. Dopamine (DA) forms a thin layer of polydopamine (PDA) with strong adhesion on the surface of ZIF-8 through oxidative self-polymerization, which can significantly improve the hydrophilicity of ZIF-8. ,− Hence, combining low-cost raw materials and water solvents to synthesize superwetting membranes for the treatment of oily emulsions is very promising.…”