Natural filter: Adjustable hydrophobicity from biodegradable zein nanofiber membrane for high efficiency air purification

Xuan Wang, Jun Wang, Jun Kang, Yaxin Zhao, Huafeng Tian*, Yujuan Jin, Rakesh Kumar, Junfeng Wang

*此作品的通讯作者

科研成果: 期刊稿件文章同行评审

摘要

Faced with the fact that air filtration materials prepared from traditional petroleum-based materials do not have good biodegradability and have the risk of causing secondary pollution to the environment, a kind of nanofiber membrane with biodegradable polylactic acid (PLA) and zein was prepared by electrospinning method. The morphology of as-prepared membrane was carried out along with filtration performance and degradation performance both experimentally and theoretically. The results showed that the hydrophobicity of nanofiber membrane can be adjusted by changing the ratio of PLA and zein. In addition, the highest filtration efficiency for PM2.5 and PM10 was achieved when the ratio of PLA to zein was 1:1, and it could be stabilized at 98.14 % and 97.39 %, and had the highest quality factor (QF) of 0.00738 Pa−1. Moreover, the fiber membrane has excellent adsorption effect on aqueous particles as well as oily particles. Notably, the as-prepared composite filter can be easily biodegraded thus contributing to green ecological environment.

源语言英语
文章编号130422
期刊Separation and Purification Technology
358
DOI
出版状态已出版 - 7 6月 2025

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