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用电放电等离子处理硫酸 (PFBS):反应机制和降解途径

Diana Aranzales^1,2, Osakpolo Isowamwen¹, Sujan Fernando²

¹Department of Chemical and Biomolecular Engineering, Plasma Research Laboratory, Clarkson University, 8 Clarkson Avenue, Potsdam, New York 13699, United States.

|September 2, 2025

概括

不热等离子体迅速降解含有或不含表面活性剂的甲酸盐 (PFBS). 分析发现了类似的副产品和涉及电子和OH基的降解途径,以有效处理PFAS.

科学领域:

环境化学
血科学
分析化学

背景情况:

和多基物质 (PFAS) 是持续性环境污染物.
电放电等离子体在降解短链 (SC) PFAS方面具有前景.
表面活性剂可以增强PFAS运输到血液界面进行降解.

研究的目的:

使用非热等离子体检测硫酸盐 (PFBS) 的降解情况.
确定四级三甲基表面活性剂 (C8TAB,C12TAB,C16TAB) 对PFBS降解的影响.
确定PFBS和表面活性剂降解的副产品,并阐明降解途径.

主要方法:

含有或不含表面活性剂的PFBS溶液的非热等离子处理
先进的分析技术:LC-MS/MS (目标,可疑,非目标),GC-MS头部空间和IC.
降解副产品的识别和建议的反应机制.

主要成果:

PFBS降解产生了短链PFCA,化,酒精和不和化合物.
有或没有表面活性剂的降解副产品在很大程度上相似.
拟议的降解途径涉及化电子和OH激素作为主要反应物种.

结论:

非热等离子有效降解PFBS,表面活性剂不会显著改变副产品概况.
已识别的副产品和拟议的途径为PFBS降解机制提供了洞察力.
这些发现支持可用于PFAS修复的等离子技术的优化.

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