吸附性纳米纤维膜用于双向去除阴离子和阴离子染料
Hongyi Wan1, Xun Zhu1, Jianjun Wang2
1Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang, Hunan 414006, China.
Separation and purification technology
|February 9, 2026
概括
新的纳米纤维膜有效地从废水中去除阳离子和阴离子染料. 这些耐用的膜表现出高吸附能力和效率,即使在具有挑战性的条件下,为染料修复提供了一个有希望的解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 染料废水带来了重大的环境和健康风险.
- 现有的方法难以同时去除各种染料类型和污染物.
- 强大的,双向的染料去除策略对于有效的废水处理至关重要.
研究的目的:
- 开发先进的吸附性纳米纤维膜,以有效地去除阳离子和阴离子染料.
- 研究开发的膜的吸附能力,效率和可重复使用性.
- 评估膜在各种具有挑战性的水条件下的性能,包括高盐度和共存物质.
主要方法:
- 制造具有硫酸盐和四级氨基基部分植入的疏水骨干的纳米纤维膜.
- 用重力驱动的过器去除染料.
- 对阳离子甲基色 (MO(-)) 和阴离子晶体紫色 (CV(+)) 的吸附能力和效率测量.
- 评估膜在多个循环中的可重复使用性和在不同pH值,盐度和无机离子和表面活性剂的存在下性能.
主要成果:
- 膜具有很高的吸附能力:541-691毫克/克的MO(-) 和762-875毫克/克的CV(+).
- 实现了高清除效率:MO的99.5%和CV的99.3%.
- 在六个周期内表现出优异的可重复使用性,性能一致.
- 显示高盐度,无机离子和共存的表面活性剂的影响最小.
结论:
- 开发的吸附性纳米纤维膜为双向染料去除提供了强大而有效的解决方案.
- 膜具有高吸附能力,优异的化学稳定性,在各种水条件下可靠的性能.
- 这些发现凸显了膜在实际染料废水整治应用中的潜力.
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