4.6 Article

Ultralight ethyl cellulose-based electret fiber membrane for low-resistance and high-efficient capture of PM2.5

出版社

ELSEVIER
DOI: 10.1016/j.colsurfa.2021.127643

关键词

Electrospinning; Electret; All-ploymer composite membrane; Air purification

资金

  1. Research and Processing Project of Radioactive Pollution Removal from The Naval Specialty Medical Center (China) [20zh0331]
  2. Longshan academic talent research support plan of Southwest University of Science and Technology (China) [18lzx315]

向作者/读者索取更多资源

By optimizing the preparation conditions of the electret fiber membrane, the EC/PS composite membrane showed low fiber diameter and high porosity, with the best performance achieved at EC/PS mass ratio of 2.5/1 and spinning time of 10 minutes. The composite electret membrane exhibited a purification efficiency of 100% for PM2.5 within 11 minutes, indicating promising applications in air purification.
Atmospheric particulate matter (PM) pollution is a serious threat to human health, so the preparation of electret films with high efficiency and low resistance capturing particulate has attracted wide attention. Herein, a strategy for the fabrication of all-polymer hybrid electret fiber membranes by electrospinning is reported based on the ethyl cellulose (EC) and polystyrene (PS). The preparation conditions of electret fiber membrane were optimized by focusing on the effect of the mass ratio of EC/PS and the spinning time on the structure, surface potential and purification performance of fiber membrane. The result showed that the fiber membrane has a low fiber diameter of 572 +/- 113 nm and porosity of 82.4%, and a better potential stability when the EC/PS mass ratio was 2.5/1 and the spinning time was 10 min. As a result of the enhanced effect of electrostatic attraction on particle capture, the EC/PS composite electret membrane could make the purification efficiency of PM2.5 reach to100% within 11 min. Moreover, the EC/PS composite electret membrane has the properties of ultra-light base weight of 1.08 g.m(-2), low air resistance of 28 Pa and long service life. Therefore, the all-polymer EC/PS electret nanofiber membranes have broad application prospects in the field of air purification.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.6
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据