材料科学
电磁屏蔽
膜
静电纺丝
复合材料
纳米纤维
聚丙烯腈
纳米颗粒
化学工程
纳米技术
化学
聚合物
生物化学
工程类
作者
Pinhong Chen,Liqin Wang,Minjian Liao,Zibo Liu,Hui Zhao,Wenxu Zheng,Frank Ko,Jingxin Zhao,Haisong Qi,Wuyi Zhou
标识
DOI:10.1002/admt.202300760
摘要
Abstract With the widespread utilization of many radiation instruments, people are inadvertently suffering from radiation damage. But nowadays, there is still a lack of a lightweight, comfortable, and efficient wearable radiation‐proof multifunctional composite fibrous membranes in people's lives. To solve this problem, a green and efficient radiation‐resistant nanofibrous membrane consisting of cellulose fluorescent particles (CFP), ZnO‐Bi 2 O 3 nanoparticles, and polyacrylonitrile (PAN) solution is prepared by an electrospinning technology. The microscopic characterization shows that the nanoparticles are uniformly dispersed on the surface of the nanofibrous membrane, forming a dense fibrous structure. The PAN/CFP/ZnO‐Bi 2 O 3 nanofibrous membrane exhibits not only an excellent ultraviolet(UV) interception with an ultraviolet protection factor value of 337.99 ± 83.67, but also a strong shielding effect on low‐energy X‐rays. Simultaneously, it can not only photocatalytically degrade 88.17% of methylene blue solution within 150 min, but also remove 94.16 ± 0.96% of Escherichia coli and 99.07 ± 0.59% of Staphylococcus aureus within 3 h under dark incubation and kill all bacteria within 3 h under light. The adhesion, growth, and proliferation of bone marrow mesenchymal stem cells on the PAN/CFP/ZnO‐Bi 2 O 3 nanofibrous membranes confirm its low cytotoxicity and good biosafety. Thus, it could be expected to be used in daily life products such as UV and X‐rays radiation protective clothing.
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