微塑料在多种形态化合物上的接口吸附特性
Di Zhang1, Jingxi Li2, Chengjun Sun2
1Qingdao Key Laboratory of Analytical Technology Development and Offshore Eco-Environment Conservation, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China.
Journal of hazardous materials
|February 4, 2025
概括
聚钢和聚乙烯四甲酸微塑料吸附化合物,吸附受到环境因素的影响. 这些微塑料还影响抗氧化活性,突出显示了潜在的环境风险.
科学领域:
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
- 毒理学 毒理学 毒理学
背景情况:
- 聚钢 (PS) 和聚乙烯四甲酸盐 (PET) 降解成微塑料,造成环境污染的风险.
- 微塑料可以吸附污染物,导致复合污染效应和潜在的毒理影响.
研究的目的:
- 研究PS和PET微塑料对各种化合物的吸附特性.
- 评估环境因素对与微塑料结合的影响.
- 评估微塑料和对抗氧化剂活性的影响.
主要方法:
- 吸附动力学和等温分析使用伪第一阶,兰木尔和弗罗恩德利希模型.
- 使用模拟的胃和肠液进行脱落研究.
- 对结合的环境因素 (老化,pH,盐度,离子,湿酸) 的研究.
- 评估微塑料和对减少谷氨 (GSH) 介导的基因清除 (DPPH测试) 的影响.
主要成果:
- PS和PET对化合物的吸附能力不同,PS对单甲基氨酸 (MMA) 具有很高的亲和力.
- 吸附平衡很快就实现了,动力学由伪第一阶和异温体由兰格穆尔/弗朗德利希模型描述.
- 衰老和酸增强了的吸附,而盐分,离子和高pH值则减少了它.
- 微塑料抑制了GSH的基质清理,而酸盐增强了它,表明了协同效应.
结论:
- 聚氨酸和PET微塑料在化合物的环境转移中发挥着作用.
- 环境条件显著调节与微塑料的相互作用.
- 微塑料和的联合存在可能会改变环境中的氧化应激动态.
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