Effect of Additives on the Performance of PPBES Composite Forward Osmosis Hollow Fiber Membranes

被引：5

作者：

Liu, Peng ^{[1
,2
]}

Zhang, Shouhai ^{[1
,3
]}

Han, Runlin ^{[1
]}

Bu, Xiaoman ^{[1
]}

Jian, Xigao ^{[1
,3
]}

机构：

[1] Dalian Univ Technol, Sch Chem Engn, State Key Lab Fine Chem, Dalian 116024, Peoples R China

[2] Shenyang Jianzhu Univ, Coll Mat Sci & Engn, Shenyang 110168, Peoples R China

[3] Liaoning High Performance Polymer Engn Res Ctr, Dalian 116024, Peoples R China

来源：

ACS OMEGA | 2020年 / 5卷 / 36期

关键词：

THIN-FILM-COMPOSITE; INTERNAL CONCENTRATION POLARIZATION; FLUX BEHAVIOR; POLYAMIDE; DESALINATION; POLYSULFONE; NANOPARTICLES; MORPHOLOGY;

D O I：

10.1021/acsomega.0c02914

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A polyamide composite forward osmosis (FO) hollow fiber membrane was successfully prepared with a novel copoly(phthalazinone biphenyl ether sulfone) (PPBES) polymer. Effects of different additives including ethylene glycol methyl ether (EGME) and lithium chloride anhydrous (LiCl) in the dope solution on the morphologies and properties of PPBES support membranes and composite FO hollow fiber membranes were investigated. With the increase of EGME content in the dope solution, the water flux of PPBES support membranes and FO hollow fiber membranes decreased. When LiCl was added into the dope solution, the water flux of FO hollow fiber membranes improved significantly with the increase of LiCl content. Additionally, the FO performance of the PPBES membrane was further optimized by adding triethylamine (TEA) in the interfacial polymerization (IP) process. In comparison with other FO membranes, the novel PPBES composite FO hollow fiber membrane displayed a remarkably high water flux of 45.3 L/m(2) h and a low specific reverse salt flux of 0.15 g/L.

引用

页码：23148 / 23156

页数：9

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