膜科学与技术

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Preparation and anti-biofouling properties of GO/PVDF blend ultrafiltration membrane

Authors： MA Cong, HUANG Jingyun, WANG Liang

Units： Laboratory of Separation Membranes and Membrane Processes/ National Center for International Joint Research on Separation Membranes, Tianjin Polytechnic University; School of Environmental and chemical Engineering, Tianjin Polytechnic University

KeyWords： PVDF; GO; immerse precipitation method; ultrafiltration; antibacterial properties；anti-biofouling properties

ClassificationCode：TQ028.8

year,volume(issue):pagination： 2018,38(4):64-69

Abstract：

In the study, the blend membranes modified by adding different concentration of GO were prepared through the phase inversion method. The tests of contact angle and SEM imagines were carried out to evaluate membranes surface hydrophilicity and structure of pore. Furthermore, the pseudomonas aeruginosa, as typical pollutants, were filtrated to research the antibacterial and anti-biofouling properties of membranes. The results indicated that contact angle of membranes blended GO/PVDF membrane could decreased the contact angle to improve the hydrophilicity and increase the finger-like pore, which lead to higher water flux. The contact angle decreased to 64° and the water flux increased by 64% under the additive concentration of 0.5wt%.The antibacterial and anti-biofouling properties of PVDF membranes were improved through adding GO. Compared with 5.4×1012m-1of PVDF/0wt%GO, the irreversible resistance of PVDF/0.5wt%GO membranes decreased to 1.8×1012m-1, showing the irreversible resistance of blend membranes decreased by 66.7%.

Funds：

国家自然科学基金项目（51508383，51478314）

AuthorIntro：

第一作者简介：马聪(1982-)，男，辽宁沈阳，博士，研究方向是膜法水处理E-mail:macong_0805@126.com 通讯作者，E-mail：mashi7822@163.com

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