尼克尔酸盐激活的酸作为BPA及其类型的有效氧化剂降解BPA及其类型的降解
Dariusz Kiejza1, Alicja Piotrowska-Niczyporuk2, Elżbieta Regulska3
1Doctoral School of Exact and Natural Sciences, University of Bialystok, Ciolkowskiego 1K Street, 15-245, Bialystok, Poland.
Chemosphere
|March 17, 2024
概括
化纳米粒子 (NiCo2O4NP) 有效地激活酸 (PAA) 降解双. 这种NiCo2O4-PAA系统显示出水处理的前景,通过激进途径运行.
科学领域:
- 环境化学环境化学
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
背景情况:
- 有机微污染物,如双,对水生生态系统构成风险.
- 先进的氧化过程 (AOP) 对于从水中去除持久性有机污染物至关重要.
- 不同质的催化剂在AOP中具有优势,包括易于分离和可重复使用.
研究的目的:
- 为了研究化纳米颗粒 (NiCo2O4NP) 对异质酸 (PAA) 激活的疗效.
- 优化尼科2O4-PAA系统,以降解双微污染物.
- 阐明降解机制,并评估催化剂在真实水矩阵中的可重复使用性和性能.
主要方法:
- 响应表面方法 (RSM) 使用实验设计 (DoE) 进行过程优化.
- 使用NiCo2O4NP和PAA进行异质催化氧化.
- 激素清除实验以确定氧化途径.
- 催化剂可重复使用性测试和实体水样实验.
- 使用Acuteodesmus obliquus和Lemna minor进行毒性评估.
主要成果:
- 双降解的最佳条件:115 mg/L NiCo2O4 NPs,7 mM PAA,和pH 7. 这是一个很好的条件.
- 实现了10种双微污染物的高降解效率.
- 证实了降解机制是基于基因的,主要涉及O2基因.
- 在多个氧化周期中,NiCo2O4NP证明了其可重复使用性.
- 该过程显示真实水矩阵的影响很小,但反应后的混合物表现出度依赖的毒性.
结论:
- NiCo2O4NP是双降解中PAA激活的有效异质催化剂.
- 开发的NiCo2O4-PAA系统为去除有机微污染物提供了一个可行的途径.
- 了解激素路径和催化剂可重复使用性是实际应用的关键.
- 需要进一步的研究,以减轻所观察到的处理水的生态毒性.
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