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Solution‐blow spun PLA/SiO 2 nanofiber membranes toward high efficiency oil/water separation
Author(s) -
Ye Beirong,
Jia Chao,
Li Ziwei,
Li Lei,
Zhao Qiang,
Wang Jinshu,
Wu Hui
Publication year - 2020
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.49103
Subject(s) - membrane , nanofiber , materials science , chemical engineering , permeation , adsorption , polylactic acid , electrospinning , pervaporation , dispersant , organic chemistry , composite material , polymer , chemistry , dispersion (optics) , biochemistry , physics , optics , engineering
With the ever frequent of industrial organic solvent emissions and oil spillages, the development of high efficiency oil/water separation materials has attracted extensive attention. Here, PLA‐based nanofiber membranes modified with metal oxides (SiO 2 , TiO 2 , Al 2 O 3 , and CeO 2 ) are fabricated through blow spinning the mixed solution of polylactic acid (PLA) and metal oxide nanoparticles (NPs). Results shows that the addition of SiO 2 NPs significantly increases the hydrophobicity of the membranes, while maintaining the excellent superoleophilicity. The PLA/SiO 2 nanofiber membranes demonstrate a higher separation performance than pure PLA, PLA/TiO 2 , PLA/Al 2 O 3 , and PLA/CeO 2 nanofiber membranes with high separation efficiency (~100%) and permeation flux (17,800 L m −2 h −1 for n‐heptane), as well as prominent oil adsorption capacity (19.9 g/g for n‐hexane). The successful fabrication of metal oxides modified PLA nanofiber membranes with high separation and adsorption ability, and excellent durability hold great application potential in the field of oily wastewater treatment.