用微波加热制备的基粘土矿物质去除迪克洛芬雅克
Denise B França1,2, Alice P N Silva1, Josy A Osajima2
1Universidade Federal da Paraíba, Núcleo de Pesquisa e Extensão - Laboratório de Combustíveis e Materiais (NPE - LACOM), Cidade Universitária s/n - Campus I, 58051-900 João Pessoa, PB, Brazil.
ACS omega
|December 16, 2024
概括
这项研究开发了用于从水中去除二二烯的新型器官微聚合物吸附剂. 这些材料在捕获二二中表现出高效率,为水处理提供了有前途的解决方案.
科学领域:
- 环境化学环境化学
- 材料科学 材料科学 材料科学
- 水处理技术水处理技术
背景情况:
- 狄克洛菲纳克是水生环境中广泛检测到的新兴污染物.
- 它的存在对水生生物群产生不利影响.
- 迫切需要有效的从水中去除狄克洛芬雅克的战略.
研究的目的:
- 为了合成和评估用于二克洛菲纳克去除的新型器官微聚物吸附剂.
- 调查表面活性剂负载对吸附剂性能和稳定性的影响.
- 为了阐明二二的吸附机制在器官微粒上.
主要方法:
- 通过使用微波辅助合成,通过将基化物 (C14,C16,C18) 与甲 (Na-Ver) 反应合成有机超微化物.
- 在不同的pH条件下评估了吸附剂的稳定性.
- 量化了狄克洛菲纳克的吸附,并使用XRD,FTIR,Zeta潜力和pH分析研究了吸附机制.
主要成果:
- 吸附效率受到粘土矿物质中加入的表面活性剂量显著的影响.
- 用200%的阴离子交换能力 (CEC) 制备的样本显示了较高的二二保留,达到110.1mgg-1.
- 狄克洛菲纳克的吸附发生在器官超微粒体的介层区域内,主要是由范德瓦尔斯相互作用驱动的.
结论:
- 微波辅助的有机微粒的合成提供了一种有效的方法来制备二二烯吸附剂.
- 器官微粒,特别是那些在200%的CEC下加载的器官微粒,具有很高的迪克洛芬雅克去除能力.
- 这些发现突出了器官超微粒的潜力,作为有效的材料来处理二二烯污染的水.
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