Rapid and efficient preparation of cationized lignin for downstream high value-added utilization of biodegradable antimicrobial nanofibrous membranes

Gao，Yu Fei1,2; Ma，Cheng Ye1; Sun，Qian1; Zhang，Xin Xu1; Liu，Jing1,3; Wen，Jia Long1; Chen，Rou Xi2; Wang，Hsing Lin2; Yuan，Tong Qi1

2024-02-01

10.1016/j.cej.2023.148514

Chemical Engineering Journal   影响因子和分区

1385-8947

Industrial lignin is underutilized as an abundant natural aromatic resource, resulting in a serious waste of biomass resources. In this study, a strategy was developed to efficiently achieve cationization of industrial lignin, which not only could increase the water solubility of the industrial lignin for good compatibility with polyvinyl alcohol (PVA), but also incorporated quaternary ammonium groups to improve the antimicrobial performance. The results showed that the cationized lignin products could be obtained by reacting at 75 °C for only 20 min and had good compatibility with PVA in aqueous systems, which not only shortened the lignin cationization time, but also reduced the amount of cationization reagent. By integrating the electrospinning technique, the nanofiber membranes with excellent antimicrobial performance can be produced for the field of medical dressing. With the addition of 7 wt% of the cationized lignin, the novel developed antimicrobial nano-medical dressing exhibited excellent breathability (61.08 mm/s), anti-UV properties, and compatibility with portable spinning technique. In addition, the cationized lignin-based nanofiber membranes had excellent antimicrobial performance, with an antimicrobial ratio of 100 % (Gram-positive Staphylococcus aureus and Gram-negative Escherichia coli), as well as being biodegradable. In conclusion, this strategy could realize the cationization modification of industrial lignin while expanding the application in medical dressings and improving the economic sustainability of biorefinery strategies.

Antimicrobial properties Cationization Industrial lignin Nanofiber membranes Polyvinyl alcohol

SCI ; EI

英语

其他

ENGINEERING

2-s2.0-85182023386

Scopus

1.Beijing Key Laboratory of Lignocellulosic Chemistry,Beijing Forestry University,Beijing,No. 35 Tsinghua East Road, Haidian District,100083,China
2.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
3.Department of Chemical Engineering,University of Utah,Salt Lake City,84114,United States

Gao，Yu Fei,Ma，Cheng Ye,Sun，Qian,et al. Rapid and efficient preparation of cationized lignin for downstream high value-added utilization of biodegradable antimicrobial nanofibrous membranes[J]. Chemical Engineering Journal,2024,481.

Gao，Yu Fei.,Ma，Cheng Ye.,Sun，Qian.,Zhang，Xin Xu.,Liu，Jing.,...&Yuan，Tong Qi.(2024).Rapid and efficient preparation of cationized lignin for downstream high value-added utilization of biodegradable antimicrobial nanofibrous membranes.Chemical Engineering Journal,481.

Gao，Yu Fei,et al."Rapid and efficient preparation of cationized lignin for downstream high value-added utilization of biodegradable antimicrobial nanofibrous membranes".Chemical Engineering Journal 481(2024).