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从有机丰富的废水中分离微/纳米塑料:Co/PMS超过了芬顿系统

Shenjun Wang¹, Xiaonan Tan¹, Yuhao Wu¹

¹School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China.

Journal of hazardous materials

|October 28, 2023

概括

一个新的 (II) 和过氧化硫酸盐 (Co/PMS) 系统在30分钟内迅速从废水中分离出微塑料和纳米塑料. 这种高效的方法超过了传统的芬顿式系统 (Fe/H2O2),保持了塑料的完整性和样品质量.

科学领域:

环境科学环境科学
分析化学分析化学
材料科学材料科学材料科学

背景情况:

快速隔离微塑料对于评估环境和健康影响至关重要.
传统的芬顿试剂 (Fe/H2O2系统,FHS) 用于微塑料的隔离受到恶劣的条件,长时间的反应和低效率的限制.

研究的目的:

开发一种更快,更有效的方法,从复杂的废水基质中分离微塑料和纳米塑料.
为了比较一种新的 (II) /过氧硫酸盐 (Co/PMS) 系统与传统的芬顿式系统的疗效.

主要方法:

研究了使用 (II) 盐和过氧单硫酸盐 (Co/PMS) 来隔离微塑料的芬顿式系统.
在反应时间和隔离效率方面,将Co/PMS系统与Fe/H2O2系统 (FHS) 进行了比较.
验证了Co / PMS系统在各种条件,塑料类型和尺寸 (微到纳米塑料) 中的适用性.
使用特征技术 (UV-vis,TEM,AFM,FTIR,XPS) 来评估塑料完整性和样品质量.

主要成果:

Co/PMS系统在30分钟内分离了微/纳米塑料,比FHS (超过5小时) 快得多.
与FHS相比,Co/PMS系统的隔离效率和性能都比FHS更高.
Co/PMS系统有效地隔离了微型和纳米级的各种塑料类型 (PS,PA,PE,PP,PVC).
物理化学表征证实了塑料完整性的保存和对样品质量的最小影响.

结论:

Co/PMS 系统为从废水中分离微/纳米塑料提供了一种更快,更有效的方法.
这种新的系统克服了传统方法的局限性,为环境监测提供了有前途的解决方案.
Co/PMS系统确保了分离的塑料的完整性,减少了对样品的伤害,并使准确的分析成为可能.

关键词:

协同/PMS系统系统芬顿反应是芬顿反应的一个反应.微塑料是一种微塑料.聚乙烯是一种聚乙烯.

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