材料科学
纳米纤维
静电纺丝
纳米复合材料
生物相容性
壳聚糖
复合数
化学工程
复合材料
吸附
聚酰胺
氧化物
生物高聚物
石墨烯
聚合物
纳米技术
有机化学
化学
冶金
工程类
作者
Atefeh Mousavi Anjeh,Seyed Reza Nabavi
标识
DOI:10.1007/s10924-022-02485-3
摘要
Chitosan (CS) is a natural biopolymer that due to its excellent properties such as biocompatibility and biodegradability is suitable for use in many applications. But, dependent on the molecular weight and other properties the electrospinning capability of CS is very weak. To solve this problem, it is recommended to blend it with a second polymer. In this work, CS/polyamide-6 (PA6) composite nanofibers were fabricated by electrospinning technique. Then different weight percentages of graphene oxide (GO) i.e. 0.1, 0.25, and 0.5 wt% were used to improve the mechanical and thermal properties of composite nanofibers. The characterization results showed that uniform nanofibers were formed by electrospinning of the PA6/CS nanocomposites blend, and the addition of GO lead to the formation of spider-web-like morphology with decreasing of nanofibers diameter. Further, the GO can improve Young's modulus and thermal degradation resistance of the PA6/CS nanofibers mat. Finally, the potential of prepared composite nanofibers was investigated for the adsorption of lead ions (Pb2+) in a batch system. Kinetic studies revealed that the Pb2+ ion adsorption onto PA6/CS/GO nanofibers mat followed pseudo-first-order kinetic, and gave the maximum adsorption capacity of 217.39 mg g−1.
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