Biomass-based renewable, eco-friendly nanofiber membrane: Large-scale fabrication and application in PM0.3 capture and oily wastewater purification

被引：12

作者：

Li, Yun ^{[1
]}

Wan, Longyin ^{[1
]}

Geng, Jialiang ^{[1
]}

Wang, Zunyuan ^{[3
]}

Wang, Guoxin ^{[3
]}

Qiao, Xiaolan ^{[2
,4
]}

Yuan, Ding ^{[1
,4
]}

Zhao, Zhihui ^{[1
]}

Chen, Weichao ^{[1
,4
]}

机构：

[1] Qingdao Univ, Lab Mfg Low Carbon & Functionalized Text Univ Shan, Coll Text & Clothing, Qingdao 266071, Peoples R China

[2] Donghua Univ, Coll Mat Sci & Engn, State Key Lab Modificat Chem Fibers & Polymer Mat, Shanghai 201620, Peoples R China

[3] Qingdao Xinwei Text Dev Co Ltd, Qingdao 266071, Peoples R China

[4] Qingdao Univ, Coll Text & Clothing, Qingdao 266071, Peoples R China

来源：

SEPARATION AND PURIFICATION TECHNOLOGY | 2024年 / 343卷

关键词：

Biomass-based polyester; Poly (trimethylene 2,5-furandicarboxylate); Nanofiber membrane; PM capture; Oily wastewater purification; TRANSPARENT; DISPERSITY; POLYESTER; EFFICIENT;

D O I：

10.1016/j.seppur.2024.127165

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Biomass-based poly (trimethylene 2,5-furandicarboxylate) (PTF) was synthesized by the simple and low-cost direct esterification method. The high number-average molecular weight (Mn) of about 39.6 kDa was achieved for PTF with a polydispersity index (PDI) of 2.0, which was suitable for spinning. The electrospun PTF nanofiber membranes were fabricated firstly and displayed adjustable diameters, excellent mechanical properties (lifting 550 g weight, foldability) and large-scale preparation potential (area of 100 cm x 50 cm). More impressively, high initial surface potential (13.5 kV) was found for the electrospun in-suit electret membranes, which facilitated the capture of ultrafine PM particles. Subsequently, the PTF membrane showed exceptional particle capture capability with a filtration performance of 99.96 %, low pressure drops of 78 Pa, and a satisfactory quality factor of 0.1 Pa-1. PTF filters also demonstrated long-term service capability for purifying high PM2.5 concentration smoke (15 cycles, 55 min), and could be flexibly introduced into various practical scenarios. Additionally, based on the selective oil/water wettability of PTF membranes, which showed outstanding separation effects of oily wastewater(>99.88 %, 15 cycles). Therefore, the development and application of the PTF nanofibers provided a sustainable alternative for separation/purification and various fields in the future.

引用

页数：11