在连续固定床柱研究中,通过使用多孔芳香框架有效地去除三桑
Ye Li1,2, Fuxin Gong3, Wu Yang4
1MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China.
Environmental science and pollution research international
|November 10, 2023
概括
一种新型吸附剂NPVMo@iPAF-1有效地从水中去除三桑 (TCS). 这种材料具有很高的吸附能力,可以再生超过10个周期,为新出现的污染物清除提供可持续的解决方案.
科学领域:
- 环境化学环境化学
- 材料科学 材料科学 材料科学
- 吸附科学 吸附科学
背景情况:
- 三 (TCS) 是水生环境中新出现的污染物.
- 有效地去除TCS对于水安全和生态健康至关重要.
研究的目的:
- 为了合成和表征一种新型吸附剂,NPVMo@iPAF-1,用于三桑去除.
- 评估NPVMo@iPAF-1在固定床柱中的吸附性能和再生能力.
主要方法:
- NPVMo@iPAF-1通过将 (NH4) 5H6PV8Mo4O40纳入多孔芳香框架 (PAF) 来合成.
- 使用朗穆尔模型确定吸附能力.
- 为评估TCS移除效率进行的固定床柱实验.
- 使用现场臭氧化进行的再生研究.
主要成果:
- NPVMo@iPAF-1 具有较高的特定表面积 (665 m2/g).
- 最大吸附能力达到了917.1mg/g (Langmuir模型).
- 固定床柱数据与托马斯和尤恩-尼尔森模型的相关性很好.
- 通过臭氧化实现了超过10个周期的有效再生.
结论:
- NPVMo@iPAF-1证明了从各种水源中去除TCS的绝佳潜力.
- 孔隙保护,静电效应和π-π相互作用有助于吸附效率.
- 吸附剂提供了一种具有成本效益和可持续的解决方案,用于水资源整治.
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