In this study we report for the first time about the preparation of polyacrilontrile (PAN)/konjac glucomannan (KGM) nanofiber mats, needleless electrospinning from the low-toxic solvent dimethyl sulfoxide (DMSO) and the formation of carbon nanocomposites. Konjac glucomannan is a biopolymer and renewable, environmentally friendly raw material and a well-known polysaccharide, which is non-toxic and biocompatible material and is extracted from the Amorphophallus konjac plant. The addition of poloxamer in electrospinning PAN/KGM solution resulted in the reduction of membrane areas and decrease of beads in nanofibers. The concentration of 1.5% or 0.5% of konjac glucomannan in PAN/KGM nanofiber mats was not detected to affect the morphology of the nanofiber mats. The PAN/KGM nanofiber mats received oxidative stabilization and subsequent carbonization. It could be observed that after the oxidative stabilization process the average diameter of PAN/KGM nanofibers increased and after carbonization decreased compared to stabilized nanofibers. Alternative renewable raw materials such as KGM electrospun with synthetic polymers offer the possibility to reduce the environmental impact and are the alternative to new technical materials and lowers the cost of carbon materials. The combination of PAN with konjac glucomannan and the properties of both polymers open up a wide range of applications for the PAN/KGM nanofiber mats and carbon nanocomposites produced in this study, for example, for pharmaceutical and biomedical applications, as absorbents for the removal of pollutants in wastewater and as filter media for air purification, as well as for optical and chemical sensors.

中文翻译：

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无针电纺聚丙烯腈/魔芋葡甘露聚糖纳米纤维垫

在这项研究中，我们首次报道了聚丙烯腈 (PAN)/魔芋葡甘露聚糖 (KGM) 纳米纤维垫的制备、低毒溶剂二甲基亚砜 (DMSO) 的无针静电纺丝以及碳纳米复合材料的形成。魔芋葡甘露聚糖是一种生物高分子、可再生、环保的原料，是众所周知的多糖，它是从魔芋植物中提取的无毒生物相容性材料。在静电纺丝 PAN/KGM 溶液中加入泊洛沙姆导致膜面积减少和纳米纤维中的珠粒减少。未检测到 PAN/KGM 纳米纤维垫中 1.5% 或 0.5% 的魔芋葡甘露聚糖浓度会影响纳米纤维垫的形态。PAN/KGM 纳米纤维垫经过氧化稳定和随后的碳化。可以观察到，与稳定的纳米纤维相比，氧化稳定过程后 PAN/KGM 纳米纤维的平均直径增加，碳化后减少。替代的可再生原材料，例如带有合成聚合物的 KGM 静电纺丝提供了减少环境影响的可能性，并且是新技术材料的替代品，并降低了碳材料的成本。PAN 与魔芋葡甘露聚糖的结合以及两种聚合物的特性为本研究中生产的 PAN/KGM 纳米纤维垫和碳纳米复合材料开辟了广泛的应用范围，例如，用于制药和生物医学应用，作为去除废水中的污染物和空气净化的过滤介质，以及光学和化学传感器。