Preparation of poly(3-hydroxybutyrate-co-4-hydroxybutyrate)@sodium alginate composite fiber membrane and its adsorption of Pb2+ and Cu2+

被引：0
|
作者：
Sun F. [1 ]
Guo J. [1 ,2 ]
Gong Y. [1 ,2 ]
Liu Y. [1 ,2 ]
Song Z. [1 ]
机构：
[1] School of Textile and Material Engineering, Dalian Polytechnic University, Dalian
[2] Functional Fiber and its Composite Materials Engineering Technology Research Center of Liaoning Province, Dalian
来源：
Fuhe Cailiao Xuebao/Acta Materiae Compositae Sinica | 2020年 / 37卷 / 03期
关键词：
Adsorption; Composite fiber membrane; Electrospinning; Poly(3-hydroxybutyrate-co-4-hydroxybutyrate)(P(3HB-co-4HB)); Sodium alginate(SA);
D O I：
10.13801/j.cnki.fhclxb.20190729.002
中图分类号：
学科分类号：
摘要：
The poly(3-hydroxybutyrate-co-4-hydroxybutyrate) (P(3HB-co-4HB)) was dissolved by chloroform and N,N-dimethyl formamide (DMF) to prepare the spinning solution, and then P(3HB-co-4HB) nanofiber scaffold was fabricated by electrospinning. The P(3HB-co-4HB) nanofiber scaffold was coated with sodium alginate (SA) to obtain the P(3HB-co-4HB)@SA composite fiber membrane. SEM, specific surface area meter and atomic absorption spectroscopy were used to characterize fiber morphology, specific surface area, and residual ion concentration of P(3HB-co-4HB)@SA composite fiber membrane. The results show that when the spinning solution concentration is 12%, P(3HB-co-4HB) nanofibers exhibit a uniform morphology. With the static voltage increasing, the diameter of P(3HB-co-4HB) fiber decreases first and then increases. The P(3HB-co-4HB) scaffold material can increase the specific surface area of SA by 3.9 times. P(3HB-co-4HB)@SA composite fiber membrane has a maximum adsorption capacity of 26.25 mg/g and 36.25 mg/g for Cu2+ ions and Pb2+ ions, respectively, which is converted into SA adsorption capacity of 364.58 mg/g and 503.47 mg/g, respectively. © 2020, Editorial Office of Acta Materiae Compositae Sinica. All right reserved.
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页码：674 / 680
页数：6
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