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

Abstract

Developing advanced superwetting oil/water separation materials with controlled wettability, excellent selectivity and sustainable separation is a persistent pursuit for researchers. Recently, smart materials have been highly anticipated to enable sustainable...

Recent advances in eco-friendly fabrics with special wettability for oil/water separation

“…[80][81][82] Surfaces with both UWSOB/UOSHB can be obtained through the construction of surface structures and the regulation of their surface properties. 83 In terms of the construction of surface structures, Prof. Robin H. A. Ras and Dr Xuelin Tian 81 of Aalto University in Finland revealed principles for the construction of these types of surfaces for the first time. Subsequently, they proposed two important requirements for realizing UWSOB/UOSHB property from the surface microstructure, as follows: (1) the surface structure should be completely infiltrated by water and oil and (2) once the surface structure is filled with one liquid, the other liquid can be stably suspended above the oilwater interface without entering the surface structure.…”

Fabrication and Investigation of Acid Functionalized CNT Blended Nanocomposite Hollow Fiber Membrane for High Filtration and Antifouling Performance in Ultrafiltration Process

“…However, despite the many advantages mentioned above, low permeance and membrane fouling due to the hydrophobic nature of PES causes a reduced membrane lifespan, increasing energy consumption and creating higher operating costs [ 1 , 11 ]. Therefore, various methods for increasing hydrophilicity have been studied to overcome the low permeance and membrane fouling problems, including hydrophilic material coating, grafting, and blending [ 12 , 13 , 14 ]. Among these, the blending of hydrophilic nanomaterials with polymers to prepare nanocomposite membranes has been actively researched by academia and industry owing to its feasible processability and easy scale-up [ 15 , 16 ].…”

Self-Healing Superwetting Surfaces, Their Fabrications, and Properties

“…6,11,34 They introduced self-healing mechanisms on different scales, such as micro-, meso-, and macro-sized damages, and summarized the related applications. 29,35 Some others focus on the applications of superwettability materials, such as water desalination, 36 oil/water separation, 37 antifouling, 38 heat resistance, and pressure resistance. 39 However, a systematic review on various natural and synthetic self-healing superwetting surfaces has not been found in the research literature.…”

“…The previous review articles have reviewed the self-healing surfaces, materials, and principles, ,, bioinspired self-healing materials, bioinspired superwettability surfaces, and their applications. ,,− Some of them focus on the self-healing superhydrophobic/superoleophobic materials, which follow the mechanism of migrating low surface energy chemicals from the storage layer to the damaged surface or regenerating the surface topology. ,, They introduced self-healing mechanisms on different scales, such as micro-, meso-, and macro-sized damages, and summarized the related applications. , Some others focus on the applications of superwettability materials, such as water desalination, oil/water separation, antifouling, heat resistance, and pressure resistance . However, a systematic review on various natural and synthetic self-healing superwetting surfaces has not been found in the research literature.…”