期刊
SEPARATION AND PURIFICATION TECHNOLOGY
卷 320, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.seppur.2023.124209
关键词
Air filtration; Photocatalyst; Heterojunction; Electrospinning; Particulate matter
In this study, TiO2/g-C3N4 (TCN) heterojunction photocatalyst was loaded on polystyrene/polyacrylonitrile (PS/PAN) multiscale nano-fiber membranes using a simple one-step blending electrospinning technique. The composite membrane showed remarkably enhanced filtration effect under light due to the strong electrostatic force of the built-in electric field.
Particulate matter (PM) pollution has posed a severe threat to the environment and human health. Especially for submicron-level fine particulate PM0.3, it is still difficult to achieve high-efficiency filtration. Herein, we loaded TiO2/g-C3N4 (TCN) heterojunction photocatalyst on polystyrene/polyacrylonitrile (PS/PAN) multiscale nano-fiber membranes by a simple one-step blending electrospinning technique. Due to the strong long-range elec-trostatic force of the built-in electric field, the composite membrane has a remarkably enhanced filtration effect under light. Even under harsh conditions with a high PM0.3 concentration of more than 1,800,000 m 3 and a high flow rate of 25 L/min, it still has a high filtration efficiency of greater than 98.5%, an increase of about 20% compared with dark conditions, and the pressure drop is only low to 94 Pa. More importantly, the electrostatic field can be regenerated with light, and this preparation strategy can be effectively extended to other photo-catalyst heterojunctions.
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。
推荐
暂无数据