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NBs-GO膜的渗透性能及其对染料截留性能

张扬天 黄一 韩昌道 钟俊磊 李民亮 陈亮 李露

张扬天,黄一,韩昌道,等.NBs-GO膜的渗透性能及其对染料截留性能[J].环境工程技术学报,2024,14(4):1112-1120 doi: 10.12153/j.issn.1674-991X.20230929
引用本文: 张扬天,黄一,韩昌道,等.NBs-GO膜的渗透性能及其对染料截留性能[J].环境工程技术学报,2024,14(4):1112-1120 doi: 10.12153/j.issn.1674-991X.20230929
ZHANG Y T,HUANG Y,HAN C D,et al.Permeability of nanobubbles-graphene oxide membrane and its dye retention performance[J].Journal of Environmental Engineering Technology,2024,14(4):1112-1120 doi: 10.12153/j.issn.1674-991X.20230929
Citation: ZHANG Y T,HUANG Y,HAN C D,et al.Permeability of nanobubbles-graphene oxide membrane and its dye retention performance[J].Journal of Environmental Engineering Technology,2024,14(4):1112-1120 doi: 10.12153/j.issn.1674-991X.20230929

NBs-GO膜的渗透性能及其对染料截留性能

doi: 10.12153/j.issn.1674-991X.20230929
基金项目: 国家自然科学基金面上项目(12074341)
详细信息
    作者简介:

    张扬天(1998—),男,硕士研究生,主要研究方向为环境科学,17326086577@163.com

    通讯作者:

    李露(1984—),女,实验师,主要从事纳米气泡的分析测试与表征,524427221@qq.com

  • 中图分类号: X703

Permeability of nanobubbles-graphene oxide membrane and its dye retention performance

  • 摘要:

    氧化石墨烯(GO)膜因其优异的物化特性、独特的水通道,被广泛应用于复杂废水中的染料分离。通过将纳米气泡(NBs)吸附到GO上,形成纳米气泡-氧化石墨烯(NBs-GO)膜,有望提高膜的染料分离性能。以NBs-GO膜处理亚甲基蓝溶液模拟的染料废水,测定了该膜的水渗透率、截留率和稳定性等指标,并探究了染料种类与浓度、膜厚度和GO的制备条件等因素对膜性能的影响。结果表明:NBs-GO膜的水渗透率相比传统GO膜高出50.8%,并且能够将亚甲基蓝的截留率维持在99.88%,具有更优的染料分离性能。此外,NBs-GO膜在72 h内展现出了良好的稳定性,截留率始终保持在90%以上。即使在改变染料种类、浓度及膜厚度等条件下,NBs-GO膜依然保持了优异的水渗透性能。纳米气泡的引入为提高GO膜的染料分离效率提供了新的思路,在染料废水的处理方面展现出巨大的发展潜力,这一研究在染料废水处理领域具有广泛的应用前景。

     

  • 图  1  制膜和过滤的示意

    Figure  1.  Schematic diagram of membrane production and filtration

    图  2  纳米气泡的粒径分布

    Figure  2.  Particle size distribution of Nanobubbles

    图  3  GO膜与NBs-GO膜的厚度

    Figure  3.  Thickness of GO membrane and NBs-GO membrane

    图  4  GO膜与NBs-GO膜的表面形貌

    Figure  4.  Surface morphology of GO membrane and NBs-GO membrane

    图  5  GO膜与NBs-GO膜的水接触角和X射线衍射表征

    Figure  5.  Characterization of water contact angle and X-Ray diffraction of GO membrane and NBs-GO membrane

    图  6  GO膜与NBs-GO膜对3种染料溶液的截留效果

    Figure  6.  Retention effects of 3 dyes by GO membrane and NBs-GO membrane

    图  7  不同反应条件对GO膜及NBs-GO膜截留亚甲基蓝效果的影响

    Figure  7.  Effect of different reaction conditions on the retention of methylene blue by GO membrane and NBs-GO membrane

    图  8  膜厚度对GO膜及NBs-GO膜截留效果的影响

    Figure  8.  Effect of membrane thickness on the retention of GO membrane and NBs-GO membrane

    图  9  不同浓度亚甲基蓝溶液对GO膜及NBs-GO膜截留效果的影响

    Figure  9.  Effect of methylene blue concentration on the retenttion of GO membrane and NBs-GO membrane

    图  10  NBs-GO膜截留亚甲基蓝染料的稳定性测试结果

    Figure  10.  Stability test of NBs-GO membrane for methylene blue dyestuff rejection

    表  1  NBs-GO膜与文献中其他纳滤膜的截留效果对比

    Table  1.   Comparison of retention effect of NBs-GO membranes with other nanofiltration membranes in the reference

    膜的种类水渗透率/
    〔L/(m2·h·MPa)〕
    截留率/%
    5p-nGOM[22]651.596.30
    GO@nylon 6-12[23]111.595.00
    ZIF-8/GO[24]600.099.00
    Polycation/GO[25]64.299.20
    HPEI/S-rGO-18[26]850.098.60
    MXene-PEI[27]50.094.70
    GO/MXene[28]170.098.60
    GOCN[29]154.085.50
    Ti2C3Tx/GO[30]3.099.50
    GO(本研究)656.499.91
    NBs-GO(本研究)868.399.93
    下载: 导出CSV
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出版历程
  • 收稿日期:  2023-12-31
  • 录用日期:  2024-06-08
  • 修回日期:  2024-03-28

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