膜科学与技术

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Calcium alginate modified polyvinylidene fluoride electrospun membrane for oil-in-water emulsions separation drived by self-weight

Authors： Qian Ming, Meng Jiao, Lang Wanzhong

Units： The Education Ministry Key Lab of Resource Chemistry, College of Chemistry and Materials Science, Shanghai Normal University, Shanghai 200234, China

KeyWords： polyvinylidene fluoride membrane；electrospinning; micro-filtration membranes; oil-in-water emulsion separation

ClassificationCode：TQ31

year,volume(issue):pagination： 2022,42(2):89-94

Abstract：

Polyvinylidene fluoride (PVDF) has the advantages of good chemical stability, high mechanical strength and good thermal stability. The PVDF membranes prepared by electrospinning technology has high porosity and high water flux. In this work, the modified microfiltration membranes（CaAlg /PVDF） were prepared by electrospinning and modified with calcium alginate, and used in the separation of oil-in-water emulsions. The results show the prepared CaAlg /PVDF membranes have better hydrophilicity, the permeation flux of emulsified oil-containing wastewater is more than 2000 L/（m2·h·bar）, and the rejection rate of emulsified toluene and cyclohexane is more than 99 %.

Funds：

上海市地方能力建设项目（14520502900）；上海绿色能源化工工程技术研究中心(18DZ2254200)

AuthorIntro：

钱明（1997-），女，江苏泰兴，无，研究生，硕士，主要从事膜分离技术研究

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