• 更多栏目

    张耀斌

    • 教授     博士生导师   硕士生导师
    • 性别:男
    • 毕业院校:大连理工大学
    • 学位:博士
    • 所在单位:环境学院
    • 学科:环境科学与工程. 环境工程. 环境科学
    • 办公地点:环境楼B301
    • 电子邮箱:zhangyb@dlut.edu.cn

    访问量:

    开通时间:..

    最后更新时间:..

    Poly(vinylidene fluoride) hollow-fiber membranes containing silver/graphene oxide dope with excellent filtration performance

    点击次数:

    论文类型:期刊论文

    发表时间:2017-04-15

    发表刊物:JOURNAL OF APPLIED POLYMER SCIENCE

    收录刊物:SCIE、EI、Scopus

    卷号:134

    期号:15

    ISSN号:0021-8995

    关键字:fouling mitigation; graphene oxide; hollow fiber; PVDF membrane; silver nanoparticle

    摘要:In this study, an antifouling poly(vinylidene fluoride) (PVDF) hollow-fiber membrane was fabricated by blending with silver-loaded graphene oxide via phase inversion through a dry-jet, wet-spinning technique. The presence of graphene oxide endowed the blended membrane with a high antifouling ability for organic fouling. The permeation fluxes of the blended membrane was 3.3 and 2.9 times higher than those of a pristine PVDF membrane for filtering feed water containing protein and normal organic matter, respectively. On the other hand, the presence of silver improved the antibiofouling capability of the blended membrane. For the treatment of Escherichia coli suspension, the permeation flux of the blended membranes was 8.2 times as high as that of the pristine PVDF membrane. Additionally, the presented blended membrane improved the hydrophilicity and mechanical strength compared to those of the pristine PVDF membrane, with the water contact angle decreasing from 86.1 to 62.58 and the tensile strength increasing from 1.94 to 2.13 MPa. This study opens an avenue for the fabrication of membranes with high permeabilities and antifouling abilities through the blending of graphene-based materials for water treatment. (C) 2017 Wiley Periodicals, Inc.