使用废旧聚烯构建功能化碳基超交联多孔聚合物,以有效吸附烯污染物
Chenhuan Wang1, Qianqian Wang2, Kaiyuan Si2
1School of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China.
Journal of chromatography. A
|April 3, 2025
概括
废弃的聚钢被再循环转化为碳基功能超交联聚合物 (PP-HCP),以有效地去除性有机污染物 (POC). PP-HCP2材料具有高吸附能力,可在水和饮料中灵敏地检测POC.
科学领域:
- 材料科学 材料科学 材料科学
- 环境化学环境化学
- 分析化学 分析化学
背景情况:
- 类有机污染物 (POC) 存在重大环境和健康风险.
- 塑料污染,特别是废旧的聚乙烯污染,需要可持续的上循环解决方案.
- 开发高效的吸附剂对于从水和食品中去除污染物至关重要.
研究的目的:
- 从废弃的聚烯中合成碳酸功能超交联聚合物 (PP-HCP),用于POC吸附.
- 评估PP-HCPs对POC的吸附性能.
- 开发一种使用PP-HCPs在真实样本中检测POC的敏感分析方法.
主要方法:
- 废弃的聚钢与 pyromellitic dianhydride 通过一阶段的 Friedel-Crafts 反应反应,产生 PP-HCP.
- 由于其高表面积和POC吸附能力 (37.3 mg g-1),PP-HCP2被确定为最佳吸附剂.
- 使用PP-HCP2进行固体相提取,然后使用HPLC-UV检测,用于POC分析.
主要成果:
- PP-HCP2表现出极好的POC吸附能力.
- 开发的方法显示出良好的线性 (水为0.03-100.0 ng mL−1,桃子饮料为0.06-100.0 ng mL−1).
- 低检测极限 (水为0.01-0.10 ng mL−1,桃子饮料为0.02-0.15 ng mL−1) 和高恢复率 (85.3-111.8%) 被实现.
结论:
- 从废弃的聚钢中提取的碳素功能PP-HCP是POC的有效吸附剂.
- 基于PP-HCP2的固体相提取方法为环境和食品样本中POC检测提供了灵敏和可靠的工具.
- 这种方法为废物利用和环境修复提供了一个可持续和经济可行的途径.
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