Biodegradable PLA Nonwoven Fabric with Controllable Wettability for Efficient Water Purification and Photocatalysis Degradation

Abstract

Although many bioinspired superwetting materials with excellent capability for oil/water separation have been constructed, functional surfaces combining effective separation property, biodegradability, and easy-controllability are still highly desired. In this work, a facile strategy to realize the controllable wettability on the polylactic acid (PLA) nonwoven fabric has been developed; the resulting superwetting PLA nonwoven fabrics exhibit high absorption capacity and high selectivity in oil/water separation. Moreover, the superhydrophilic PLA nonwoven fabric possesses excellent simultaneous photocatalysis degradation of water-miscible toxic organic pollutants. With the versatility and biodegradability, these advanced PLA nonwoven fabrics may provide effective solutions to oily water treatment.

The Comprehensive Approach to Preparation and Investigation of the Eu3+ Doped Hydroxyapatite/poly(L-lactide) Nanocomposites: Promising Materials for Theranostics Application

“…It can enhance the adhesion and elasticity of composite materials, therefore, it is broadly used in medical and biomedical applications, i.e., for vascular stent production [4], for drug delivery systems [5], for tissue engineering [6], and as surgical sutures, implants and screws. Moreover, it is used in such fields as water purification by oil adsorption [7,8], food packaging [9] or photocatalysis degradation [10]. Poly(L-lactide) can be physically modified by doping it with fillers like bioceramic: β-TCP [11] or chitosan to facilitate cell adhesion, reduce the amount of degradation products, improve cell proliferation, increase hydrophilicity and improve bending between bones and polymeric implants [12].…”

Poly(glycolic acid) (PGA): a versatile building block expanding high performance and sustainable bioplastic applications

“…176,177 In this regard, PLA based modified surfaces have demonstrated applications in photo-catalysis and oil-water separation applications. 178,179 With a similar structure to PLA, PGA with higher crystallinity, higher strength and higher gas barrier properties, can be developed as alternatives to PLA in these different applications. Recently, electromagnetic interference (EMI) due to cross-talk between device signals is a growing concern in electronic devices.…”

Poly(lactic acid) fibers, yarns and fabrics: Manufacturing, properties and applications

“…The treated PLA nonwovens exhibited high absorption capacity and high selectivity in oil/water separation, as well as excellent photocatalysis degradation of soluble organic pollutants under UV irradiation. 165 A bifunctional PLA fabric with hydrophilicity and hydrophobicity on different sides was generated. Both sides of the PLA fabric were subjected to a plasma treatment with oxygen and methane, separately.…”