Preparation of Thin Film Composite (TFC) Membrane with DESPs Interlayer and Its Forward Osmosis (FO) Performance for Organic Solvent Recovery

被引：3

作者：

Liang, Jingyi ^{[1
]}

Huang, Hansheng ^{[1
]}

Zhang, Hao ^{[1
]}

Wu, Yanhui ^{[1
,2
]}

Zhuang, Yongbing ^{[3
]}

机构：

[1] Tongji Univ, Sch Chem Sci & Engn, Shanghai 200092, Peoples R China

[2] Tongji Univ, Shanghai Key Lab Chem Assessment & Sustainabil, Shanghai 200092, Peoples R China

[3] Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China

来源：

MEMBRANES | 2023年 / 13卷 / 07期

关键词：

organic solvent forward osmosis; composite membrane; interlayer; ethanol; monascorubrin; GAS-TRANSPORT PROPERTIES; NANOFILTRATION; SEPARATION; CHEMISTRY; MONASCUS; WATER;

D O I：

10.3390/membranes13070688

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

To explore the application of forward osmosis (FO) technology in the organic solvent recovery field, we prepared a new solvent-resistant triple layer thin film composite (TFC) membrane on the PI (polyimide) substrate. The deep eutectic supramolecular polymers (DESPs) interlayer was constructed on the substrate to improve the separation performance and solvent resistance. DESPs interlayer was formed by mixing and heating with cyclodextrin as the hydrogen bond acceptor and L-malic acid as the hydrogen bond donor. The chemical changes, surface property and morphology of the composite membrane with DESPs interlayer were characterized. The separation performance and stability of the triple layer composite membrane in organic solvent FO were studied. For the monascorubrin-ethanol system, the permeation flux of TFC/DESPs5-PI membrane could reach 9.51 LMH while the rejection rate of monascorubrin was 98.4% (1.0 M LiCl/ethanol as draw solution), which was better than the pristine membrane. Therefore, this solvent-resistant triple layer composite FO membrane has good potential for the recovery of organic solvents.

引用

页数：13

共 38 条

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