Robust PVA-GO-TiO2 composite membrane for efficient separation oil-in-water emulsions with stable high flux

Current research situation and future prospect of superwetting smart oil/water separation materials

“…Unlike "oil-removing" materials, "water-removing" materials with superhydrophilic/superoleophobic property can selectively separate water from oil/water mixtures. [74][75][76][77] Compared with the "oil-removing" type, "water-removing" materials possess obvious advantages, 14,16,56,73 as follows: (a) the superoleophobicity of "water-removing" materials greatly protects the materials from fouling by oils, thereby fundamentally overcoming the limitation of oil contamination and endowing the oil/water separation materials better performance in terms of service life, recycling of oil and recyclability of materials; (b) "water-removing" materials exhibit more conspicuous application advantages in practical gravity-driven separation processes, given that oil is typically less dense than water; and (c) "waterremoving" materials exhibit unique superiority in oil spills because they can achieve oil enrichment and recovery. Based on the above-mentioned advantages, an increasing number of "water-removing" materials have been designed and manufactured.…”

Recent Progress in Modification Strategies of Nanocellulose-Based Aerogels for Oil Absorption Application

“…Other researchers suggested in situ burning of oils; however, this method cannot remove the majority of oil, and it will cause environmental pollution [ 7 ]. Currently, physical absorption and membrane separation are the most used methods for oil/water separations and have attracted the greatest attention considering the drawbacks of the other approaches as they are effective and reliable with high absorption efficiency and little adverse environmental effect [ 8 , 9 , 10 ]. Thus, researchers nowadays are working on developing ecofriendly and cost-effective absorbents that selectively absorb oil with good reusability without significant reduction in absorption capacity.…”

Decreasing free fatty acid of crude palm oil with polyvinylidene fluoride hollow fiber membranes using a combination of chitosan and glutaraldehyde

“…Membrane technology has received great attention as an advanced physical process in numerous oil separations, especially FFA separation from CPO. [10][11][12][13][14] The simplicity of the processing processes, operation at ambient temperature, low energy consumption, and low-cost operation were all demonstrated by membrane technology. 2,8,15 The performance of the progress of membrane technology is contingent upon the selection of materials that can contribute to the deacidication performance process.…”