Superwetting Electrospun PDMS/PMMA Membrane for PM2.5 Capture and Microdroplet Transfer

doi:10.1021/acs.langmuir.1c02038

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	Superwetting Electrospun PDMS/PMMA Membrane for PM2.5 Capture and Microdroplet Transfer
	Lu, Nan; Hu, Zhentao; Wang, Fei; Yan, Lijuan; Sun, Hanxue; Zhu, Zhaoqi; Liang, Weidong; Li, An
刊名	LANGMUIR
	2021-11-09
卷号	37 期号:44 页码:12972-12980
ISSN号	0743-7463
DOI	10.1021/acs.langmuir.1c02038
英文摘要	Efficient acquiring and removal of a hazardous particulate matter (PM) have significant effects on human health. Here, we illustrate the fabrication of a superwetting electrospun polydimethylsiloxane/polymethyl methacrylate (PDMS/PMMA) membrane (EPPM) with multifunctional performance for PM2.5 capture and microdroplet transfer, where PMMA was added as a carrier polymer to the superhydrophobic PDMS, which has very low cohesive energy density. The obtained EPPM, which is composed of special bead-on-string fibers with a mean fiber diameter of 350 nm, shows a porous structure with an aperture of 7.87 mu m (calculated by the bubble pressure method) and superb thermostability (up to 325 degrees C). The EPPM possesses an excellent PM2.5 purification efficiency of nearly up to 100% at a very low pressure drop (70 Pa, <0.07% of the atmospheric pressure) under the condition of high humidity (96 +/- 3%), which is greatly advantageous over those hydrophilic filters frequently suffering the drawbacks of low efficiency or total invalidation in humid environments. In addition, benefitting from the superhydrophobic and strong adhesive properties of the membrane surface, the EPPM could complete the trace aqueous sample analysis such as robotic hand from superhydrophobic to hydrophilic surfaces without any contamination or loss and hold a high contact angle of 161.6 degrees for water. Altogether, the EPPM may have technological advantages as a kind of novel fibrous filter in diverse environmental applications, including PM2.5 capture, separation, microdroplet transfer, and so on.
WOS研究方向	Chemistry ; Materials Science
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000718188900020
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/150013]
专题	石油化工学院设计艺术学院
作者单位	Lanzhou Univ Technol, Coll Petrochem Technol, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Lu, Nan,Hu, Zhentao,Wang, Fei,et al. Superwetting Electrospun PDMS/PMMA Membrane for PM2.5 Capture and Microdroplet Transfer[J]. LANGMUIR,2021,37(44):12972-12980.
APA	Lu, Nan.,Hu, Zhentao.,Wang, Fei.,Yan, Lijuan.,Sun, Hanxue.,...&Li, An.(2021).Superwetting Electrospun PDMS/PMMA Membrane for PM2.5 Capture and Microdroplet Transfer.LANGMUIR,37(44),12972-12980.
MLA	Lu, Nan,et al."Superwetting Electrospun PDMS/PMMA Membrane for PM2.5 Capture and Microdroplet Transfer".LANGMUIR 37.44(2021):12972-12980.