TY - JOUR
T1 - In Situ Active Poling of Nanofiber Networks for Gigantically Enhanced Particulate Filtration
AU - Li, Chun Xiao
AU - Kuang, Shuang Yang
AU - Chen, Yang Hui
AU - Wang, Zhong Lin
AU - Li, Congju
AU - Zhu, Guang
N1 - Publisher Copyright:
© 2018 American Chemical Society.
PY - 2018/7/25
Y1 - 2018/7/25
N2 - Enhancing the filtration efficiency of air filtering material without increasing its airflow resistance is a major challenge and of great significance. In this work, we report a type of active-poled nanofiber onto which in situ active poling is applied. It results in significantly enhanced filtration efficiency as well as dust holding capacity while keeping the airflow resistance constant. Owing to the in situ applied electric field, the nanofibers as well as the particulates are polarized. As a result, at a poling voltage of 2 kV, the removal efficiency and the quality factor for PM2.5 are enhanced by 17% and 130%, respectively. More importantly, the dust holding capacity represents a 3.5-fold enhancement over normal nanofibers. The approach reported in this work has the potential of being practically utilized in air purification purposes because it can bring about not only promoted filtration performance but also lowered noise and reduced power consumption.
AB - Enhancing the filtration efficiency of air filtering material without increasing its airflow resistance is a major challenge and of great significance. In this work, we report a type of active-poled nanofiber onto which in situ active poling is applied. It results in significantly enhanced filtration efficiency as well as dust holding capacity while keeping the airflow resistance constant. Owing to the in situ applied electric field, the nanofibers as well as the particulates are polarized. As a result, at a poling voltage of 2 kV, the removal efficiency and the quality factor for PM2.5 are enhanced by 17% and 130%, respectively. More importantly, the dust holding capacity represents a 3.5-fold enhancement over normal nanofibers. The approach reported in this work has the potential of being practically utilized in air purification purposes because it can bring about not only promoted filtration performance but also lowered noise and reduced power consumption.
KW - active-poled nanofibers
KW - air filtering material
KW - dust holding capacity
KW - filtration efficiency
KW - in situ active poling
UR - http://www.scopus.com/inward/record.url?scp=85049778617&partnerID=8YFLogxK
U2 - 10.1021/acsami.8b07203
DO - 10.1021/acsami.8b07203
M3 - Article
C2 - 29979875
AN - SCOPUS:85049778617
SN - 1944-8244
VL - 10
SP - 24332
EP - 24338
JO - ACS applied materials & interfaces
JF - ACS applied materials & interfaces
IS - 29
ER -