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具有光催化活性的分子印记聚合物用于布洛芬吸附,降解和检测在真实水样中

Diana Samantha Villarreal-Lucio¹, Vanessa Sarahí Galván-Romero¹, Carolina López-Saldaña²

¹Secretaría de Ciencia, Humanidades, Tecnología e Innovación-Coordinación para la Innovación y Aplicación de la Ciencia y la Tecnología (CIACYT), Universidad Autónoma de San Luis Potosí, Avenida Sierra Leona No. 550, CP 78210, Colonia Lomas Segunda Sección, San Luis Potosí, Mexico.

Journal of contaminant hydrology

|May 9, 2025

概括

含有二氧化 (TiO2) 的分子印记聚合物 (MIP) 有效地降解新兴污染物 - - 布洛芬 (IBU). 25% TiO2 的 MIP 在实验室测试和真实样本中在不到 3 分钟的时间内实现了完全的 IBU 降解.

科学领域:

材料科学材料科学材料科学
环境化学环境化学
聚合物化学聚合物化学

背景情况:

新兴的污染物,如布洛芬 (IBU) 构成环境风险.
光催化材料为污染物降解提供了一个有希望的解决方案.
分子印记聚合物 (MIP) 可以设计用于特定的污染物识别和去除.

研究的目的:

合成光催化MIP,以有效地去除布洛芬.
调查二氧化 (TiO2) 含量对MIP性能的影响.
评估开发的MIPs的吸附和光降解动力学和效率.

主要方法:

使用自由基聚合法合成MIPs,其TiO2度不同 (5%和25%w/w).
作为功能单体使用了2-乙烯二,作为交叉连接剂使用了乙烯基醇二甲基酸盐.
使用高性能液态染色学 (HPLC) 分析了吸附和光降解.

主要成果:

含有25%TiO2的MIP显示出较高的易布洛芬光降解效率,在实验室环境中在2.5分钟内实现完全去除.
吸附动力学遵循伪二阶模型,弗洛伊德利希模型最好地描述了吸附过程.
最佳MIP (25%TiO2) 在10分钟内成功降解了IBU的709μg/L在真实水样本中.

结论:

光催化MIPs,特别是包含25%TiO2的MIP,对于ibuprofen去除非常有效.
开发的MIP显示了在现实世界水源中治疗ibuprofen污染的巨大潜力.
对降解产物的进一步调查是有必要的.

关键词:

吸附方式吸附方式吸附方式新兴污染物新兴污染物伊布罗芬是什么意思伊布罗芬是什么意思有分子印记的聚合物.光催化作用的光催化污水处理污水处理污水处理

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