Coordinated silicon elastomer coating@fabrics with oil/water separation capabilities, outstanding durability and ultra-fast room-temperature self-healing ability

Abstract

A co-coordinated PDMS@PET fabric exhibited high oil/water separation performance and rapid self-healing at room temperature.

Advanced Materials with Special Wettability toward Intelligent Oily Wastewater Remediation

“…Therefore, applying the dynamic bonds to superhydrophobic separation materials for self-healing severe damages in practical application might be a promising strategy. For example, Huang et al introduced cobalt (Co)-coordination bonds into pyridine pendant polydimethylsiloxane (Py-PDMS) to modify the polyethylene terephthalate (PET) fabrics to prepare self-healing and highly hydrophobic separation fabrics (Co-PDMS@PET) with a high separation factor of about 99% . Herein, Co-coordination bonds were testified as a type of the reversible bonding.…”

“…(d) Photos of shape change of water drops on PDMS@PET fabric after being damaged at room temperature. Reproduced with permission from ref . Copyright 2018 Royal Society of Chemistry.…”

“…For instance, combining photocatalysis and special wettability functions together can not only purify wastewater during separation process but also impart the membranes or meshes with self-cleaning property via the degradation of noxious organics under light illumination . Besides, the special wettability separation materials with self-healing property can maintain high separation efficiency and recyclability with a high degree of damage tolerance. , Furthermore, the intelligent separation materials with switchable wettability property, such as Janus contrast and stimuli responsiveness, are capable of reverse transition between “oil-removing” state and “water-removing” state. These types of materials possess enormous potential for effectively treating complex oily wastewater, for example, the stabilized water–oil emulsions and ternary phases of oil–water–oil mixtures .…”

“…16 Besides, the special wettability separation materials with selfhealing property can maintain high separation efficiency and recyclability with a high degree of damage tolerance. 17,18 Furthermore, the intelligent separation materials with switchable wettability property, such as Janus contrast and stimuli responsiveness, are capable of reverse transition between "oilremoving" state and "water-removing" state. These types of materials possess enormous potential for effectively treating complex oily wastewater, for example, the stabilized water−oil emulsions and ternary phases of oil−water−oil mixtures.…”

Facile Fabrication of Magnetic, Durable and Superhydrophobic Cotton for Efficient Oil/Water Separation

“…Since Jiang et al [6] innovatively proposed a straightforward, rapid, and economical method for the construction of steel mesh film with superhydrophobic/superhydrophilic coatings for oil/water separation, various superhydrophobic substrates have gained attention for their potential application in oil/water separation [7,8,9,10,11,12,13,14]. The common oil/water separation materials such as stainless steel [15,16,17], strainer [18,19,20,21], filter paper [22,23,24,25], foam polyurethane [26,27,28,29], fabrics [30,31,32,33,34,35,36] and aerogels [37,38,39] have been widely studied in recent years. There still exist limitations such as low absorption capacities or environmental incompatibility or complicated preparation process.…”