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Preparation and Properties of Cu(tpa)/PVDF Hybrid Ultrafiltration Membrane

Authors： WANG Haitao，ZHANG Haobing，AO De, SHI Mengshan，CHANG Na

Units： 1. State Key Laboratory of Separation Membrane and Membrane Process, Tianjin 300387, China; 2. School of Environmental Science and Engineering, Tiangong University, Tianjin 300387, China; 3. School of Chemistry and Chemical Engineering, Tiangong University, Tianjin 300387, China

KeyWords： Cu(tpa); PVDF; Metal-Organic Framework; Ultrafiltration; Anti-fouling

ClassificationCode：TQ028.8

year,volume(issue):pagination： 2021,41(1):40-49

Abstract：

In this work, Cu(tpa) nanocrystals were synthesized by stirring at room temperature and were introduced into PVDF membrane as modifier to prepare Cu(tpa)/PVDF hybrid ultrafiltration membrane. Cu(tpa) nanocrystals were characterized by XRD, FT-IR and SEM. The effects of Cu(tpa) nanocrystals and their contents on the morphology, structure and properties of Cu(tpa)/PVDF hybrid ultrafiltration membrane were systematically studied. The hybrid membrane was characterized by SEM, XRD, FT-IR andstatic water contact angle technique etc.The results showed that Cu(tpa) nanocrystals effectively regulated the internal morphology of PVDF membrane. When the content of Cu(tpa) was 5 wt%, the inside of the Cu(tpa)/PVDF membrane was entirely occupied by a spongy-like structure. Properties test results showed that the additon of Cu(tpa) material can significantly increased the pure water flux of PVDF wihile maintaining its BSA rejection above 96%. In addition, the BSA static adsorption and recovery water flux test showed that the Cu(tpa)/PVDF membrane had good anti-fouling performance.

Funds：

天津市科技重大专项（19YFSLQY00060，19PTZWHZ00030），中国博士后基金（2018M630275）

AuthorIntro：

王海涛（1981—），男，河北邯郸人，博士，教授，研究方向为膜材料与膜过程，E-mail：13821646961@163.com.

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