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纳米氧化锌改性聚偏氟乙烯超滤膜的性能

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龚烨霞, 左行涛, 张事, 周曌, 胡波. 纳米氧化锌改性聚偏氟乙烯超滤膜的性能[J]. 环境工程学报, 2017, 11(7): 4091-4096. doi: 10.12030/j.cjee.201605244
引用本文: 龚烨霞, 左行涛, 张事, 周曌, 胡波. 纳米氧化锌改性聚偏氟乙烯超滤膜的性能[J]. 环境工程学报, 2017, 11(7): 4091-4096. doi: 10.12030/j.cjee.201605244
shu
GONG Yexia, ZUO Xingtao, ZHANG Shi, ZHOU Zhao, HU Bo. Characteristic of polyvinylidene fluoride ultrafiltration membrane modified by nano-zinc oxide[J]. Chinese Journal of Environmental Engineering, 2017, 11(7): 4091-4096. doi: 10.12030/j.cjee.201605244
Citation: GONG Yexia, ZUO Xingtao, ZHANG Shi, ZHOU Zhao, HU Bo. Characteristic of polyvinylidene fluoride ultrafiltration membrane modified by nano-zinc oxide[J]. Chinese Journal of Environmental Engineering, 2017, 11(7): 4091-4096. doi: 10.12030/j.cjee.201605244
shu

纳米氧化锌改性聚偏氟乙烯超滤膜的性能

  • 1.

    华中农业大学, 资源与环境学院生态环境系, 武汉 430000

  • 2.

    珠海格力电器股份有限公司, 珠海 519000

  • 基金项目:

    中央高校基本科研业务费专项（2662017JC019）

    湖北省自然科学基金资助项目（2016CFB495）

  • 中图分类号: X703.1

Characteristic of polyvinylidene fluoride ultrafiltration membrane modified by nano-zinc oxide

  • 1.

    School of the Environment, Huazhong Agricultural University, Wuhan 430000, China

  • 2.

    Zhuhai GREE electric Limited by Share Ltd., Zhuhai 519000, China

  • Fund Project:

  • 摘要: 采用共混法制备了纳米ZnO改性聚偏氟乙烯（PVDF）超滤膜，考察纳米ZnO添加量对聚偏氟乙烯膜性能的影响。膜性能测定数据表明，适量纳米ZnO（1.5%~2.0%）的添加使膜孔径增大了53.91%，膜纯水通量提高了77.01%。同时，膜接触角随着纳米ZnO添加而降低，从89.3°逐渐减小到77.9°；衰减系数减小了48.84%，膜阻降低了76.62%，PVDF-ZnO超滤膜对牛血清白蛋白（BSA）的截留率稳定在90%以上。以大肠杆菌为代表的PVDF-ZnO膜抑菌性能测试结果表明，随着纳米ZnO添加量的增加，PVDF-ZnO膜抑菌率相应增加，尤其在纳米ZnO质量分数为3.0%时抑菌率高达62.9%，显著提高PVDF膜的抗菌效果。
    Abstract: The performance of PVDF ultrafiltration membranes prepared with different ZnO weight ratios via blending was investigated. Experimental data showed that optimal addition of ZnO (1.5% to 2.0%) increased membrane pore size and water flux by 53.91% and 77.01%, respectively. Meanwhile, membrane contact angle decreased from 89.3° to 77.9° with increasing nano-ZnO content in membrane-forming materials. Compared to the original PVDF membrane, the flux reduction coefficient and the membrane resistance of the PVD-ZnO membrane decreased by 48.84% and 76.62%, respectively. BSA retention of PVDF membranes modified with nano-ZnO was stable at 90% with further addition of ZnO. The antibacterial capacity of the PVDF-ZnO membrane in the presence of Escherichia coli was also studied, with results indicating that incorporation of nano-ZnO into the PVDF membrane phase led to an improved antibacterial rate. Most notably, at 3.0% ZnO, this was as high as 62.9%.
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    [2] CAO X, MA J, SHI X, et al. Effect of TiO2 nanoparticle size on the performance of PVDF membrane[J]. Applied Surface Science, 2006, 253(4): 2003-2010
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  • 收稿日期:  2016-08-18
  • 刊出日期:  2017-07-06
龚烨霞, 左行涛, 张事, 周曌, 胡波. 纳米氧化锌改性聚偏氟乙烯超滤膜的性能[J]. 环境工程学报, 2017, 11(7): 4091-4096. doi: 10.12030/j.cjee.201605244
引用本文: 龚烨霞, 左行涛, 张事, 周曌, 胡波. 纳米氧化锌改性聚偏氟乙烯超滤膜的性能[J]. 环境工程学报, 2017, 11(7): 4091-4096. doi: 10.12030/j.cjee.201605244
shu
GONG Yexia, ZUO Xingtao, ZHANG Shi, ZHOU Zhao, HU Bo. Characteristic of polyvinylidene fluoride ultrafiltration membrane modified by nano-zinc oxide[J]. Chinese Journal of Environmental Engineering, 2017, 11(7): 4091-4096. doi: 10.12030/j.cjee.201605244
Citation: GONG Yexia, ZUO Xingtao, ZHANG Shi, ZHOU Zhao, HU Bo. Characteristic of polyvinylidene fluoride ultrafiltration membrane modified by nano-zinc oxide[J]. Chinese Journal of Environmental Engineering, 2017, 11(7): 4091-4096. doi: 10.12030/j.cjee.201605244
shu

纳米氧化锌改性聚偏氟乙烯超滤膜的性能

  • 1. 华中农业大学, 资源与环境学院生态环境系, 武汉 430000
  • 2. 珠海格力电器股份有限公司, 珠海 519000
  • 收稿日期:  2016-08-18
基金项目:

中央高校基本科研业务费专项（2662017JC019）

湖北省自然科学基金资助项目（2016CFB495）

摘要: 采用共混法制备了纳米ZnO改性聚偏氟乙烯（PVDF）超滤膜，考察纳米ZnO添加量对聚偏氟乙烯膜性能的影响。膜性能测定数据表明，适量纳米ZnO（1.5%~2.0%）的添加使膜孔径增大了53.91%，膜纯水通量提高了77.01%。同时，膜接触角随着纳米ZnO添加而降低，从89.3°逐渐减小到77.9°；衰减系数减小了48.84%，膜阻降低了76.62%，PVDF-ZnO超滤膜对牛血清白蛋白（BSA）的截留率稳定在90%以上。以大肠杆菌为代表的PVDF-ZnO膜抑菌性能测试结果表明，随着纳米ZnO添加量的增加，PVDF-ZnO膜抑菌率相应增加，尤其在纳米ZnO质量分数为3.0%时抑菌率高达62.9%，显著提高PVDF膜的抗菌效果。

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