Green Electrospun Nanofibers and Their Application in Air Filtration

Interventions and policies for tackling air pollution issues exist and have been proven to be effective. Membrane materials of nanofibrous morphology are attractive for air filtration, and further alleviate the environmental issues. Electrospinning as a simple and versatile way to fabricate ultrafine fibers has been attracting tremendous attention. Herein, the recent researches and future trends of green electrospinning are expounded from the aspects of green degradable materials, green solution electrospinning, and solvent-free electrospinning. The green degradable materials, including biomass materials, biosynthetic polymer materials, and chemical synthetic materials are reviewed. Following the concept of green electrospinning, electrospun polymer nanofibers via aqueous solution are discussed; additionally, further trends of solvent-free electrospinning including melt-electrospinning, anion-curing electrospinning, UV-curing electrospinning, thermo-curing electrospinning, and supercritical CO2-assisted electrospinning are highlighted. Furthermore, the applications of these electrospun nanofibrous membranes in the field of air filtration are discussed. In the end, the challenges of green electrospinning and future prospects are summarized. The development of green electrospinning is reviewed with an emphasis on current advanced solvent-free research, where electrospun nanofibrous membranes are contributing to promising treatment strategies to solve environment issue.

解决空气污染问题的干预措施和政策已经存在，并且已经证明是有效的。纳米纤维形态的膜材料对于空气过滤具有吸引力，并进一步减轻了环境问题。电纺丝作为制造超细纤维的一种简单而通用的方法已经引起了极大的关注。在此，从绿色可降解材料，绿色溶液静电纺丝和无溶剂静电纺丝方面阐述了绿色静电纺丝的最新研究和未来趋势。审查了绿色可降解材料，包括生物质材料，生物合成聚合物材料和化学合成材料。遵循绿色静电纺丝的概念，讨论了通过水溶液静电纺丝的聚合物纳米纤维。此外，还强调了无溶剂静电纺丝的进一步趋势，包括熔融静电纺丝，阴离子固化静电纺丝，UV固化静电纺丝，热固化静电纺丝和超临界CO2辅助静电纺丝。此外，讨论了这些电纺纳米纤维膜在空气过滤领域中的应用。最后，总结了绿色静电纺丝的挑战和未来的前景。综述了绿色静电纺丝技术的发展，重点是当前先进的无溶剂研究，其中静电纺丝纳米纤维膜为解决环境问题的有前途的治疗策略做出了贡献。

Published: 2018

Journal ：MACROMOLECULAR MATERIALS AND ENGINEERING

Impact Factor：3.856

Paper link: https://onlinelibrary.wiley.com/doi/abs/10.1002/mame.201800336