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

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

张扬天^1,,
黄一²,
韩昌道²,
钟俊磊²,
李民亮²,
陈亮³,
李露^4, ,

1.
浙江农林大学环境与资源学院、碳中和学院
2.
浙江农林大学光机电工程学院
3.
宁波大学物理科学与技术学院
4.
浙江农林大学化学与材料工程学院

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
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- 文章访问数: 147
- HTML全文浏览量: 90
- PDF下载量: 25
- 被引次数: 0
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

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

1.
College of Environment and Resource, College of Carbon Neutral, Zhejiang Agriculture and Forestry University
2.
College of Optical, Mechanical and Electrical Engineering, Zhejiang Agriculture and Forestry University
3.
School of Physical Science and Technology, Ningbo University
4.
College of Chemistry and Materials Engineering, Zhejiang Agriculture and Forestry University

摘要

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。
- 纳米气泡(NBs) /
- 氧化石墨烯(GO) /
- 亚甲基蓝 /
- 染料废水 /
- 水渗透率
Abstract:
Graphene oxide (GO) membranes were widely used for dyestuffs separation in complex wastewater due to their excellent physical and chemical properties and unique water channeling. The formation of nanobubbles-graphene oxide (NBs-GO) membranes by adsorption of nanobubbles (NBs) onto GO was expected to improve the dye separation performance of the membranes. The NBs-GO membranes were used to treat dyestuffs wastewater simulated by methylene blue solution. The water permeability, retention rate and stability of the membranes were determined, and the effects of factors such as dyestuff type and concentration, membrane thickness, and GO preparation conditions on the membrane performance were investigated. The results showed that the water permeability of the NBs-GO membrane was 50.8% higher than that of the traditional GO membrane, and the retention rate of methylene blue was maintained at 99.88%, which was superior to that of the traditional GO membrane. In addition, the NBs-GO membrane showed good stability within 72 h, and the retention rate was always maintained above 90%. The NBs-GO membranes maintained excellent water permeation performance even when the dyestuffs type, concentration and membrane thickness were changed. Therefore, the introduction of nanobubbles provides a new idea to improve the dyestuffs separation efficiency of GO membranes, which shows great potential in the treatment of dyestuffs wastewater, and this discovery is expected to open up a new path for the advancement of dye wastewater treatment technology.
- nanobubbles (NBs) /
- graphene oxide (GO) /
- methylene blue /
- dyestuffs wastewater /
- water permeability

HTML全文

图 1 制膜和过滤的示意

Figure 1. Schematic diagram of membrane production and filtration

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图 2 纳米气泡的粒径分布

Figure 2. Particle size distribution of Nanobubbles

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图 3 GO膜与NBs-GO膜的厚度

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

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图 4 GO膜与NBs-GO膜的表面形貌

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

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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

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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

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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

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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

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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

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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

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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]	651.5	96.30
GO@nylon 6-12^[23]	111.5	95.00
ZIF-8/GO^[24]	600.0	99.00
Polycation/GO^[25]	64.2	99.20
HPEI/S-rGO-18^[26]	850.0	98.60
MXene-PEI^[27]	50.0	94.70
GO/MXene^[28]	170.0	98.60
GOCN^[29]	154.0	85.50
Ti₂C₃T_x/GO^[30]	3.0	99.50
GO（本研究）	656.4	99.91
NBs-GO（本研究）	868.3	99.93

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