酸盐间接的NiFe分层双氧化物用于通过增强的过氧硫酸盐激活来进行多途径抗生素降解
Tianbao Liu1, Weiguang Shi2, Xin Wang1
1College of Chemistry & Chemical Engineering, Northeast Petroleum University, Daqing 163318, China.
Journal of colloid and interface science
|September 11, 2025
概括
一种新的NiFe-酸盐催化剂通过优化过氧硫酸盐 (PMS) 激活,有效降解四环素 (TC) 抗生素. 这种废物利用方法为从水中去除耐火有机污染物提供了可持续的解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 环境化学环境化学
- 催化剂是一种催化剂.
背景情况:
- 传统的催化剂难以激活多氧硫酸盐 (PMS) 降解四环素 (TC) 等持久性有机污染物.
- 现有的方法经常产生有毒的中间体,并且在分解耐火环方面缺乏效率.
研究的目的:
- 通过控制PMS激活的基因,开发一种高效的TC降解催化剂.
- 利用工业废物 (蒙莫里隆石) 合成先进的催化剂,促进废物回收利用.
主要方法:
- 合成了NiFe-酸盐分层双氧化物 (NiFe-SiO3 LDH),使用水热蚀刻和共同沉.
- 使用TEM,XRD,FT-IR,BET和XPS对催化剂进行了表征.
- 使用in-situUV-vis,EPR和HPLC-MS.研究了降解机制.
主要成果:
- 酸盐兴奋剂优化了催化剂结构,增加了表面积并增强了PMS激活.
- 在20分钟内实现了85.3%的TC矿化,速率常数为0.13分钟-1,超过了基准.
- 确定了一种涉及基激素,超氧化激素和单片氧的多途径降解机制.
结论:
- NiFe-SiO3 LDH为水性抗生素补救提供了一个可持续和有效的解决方案.
- 精密注和结构工程是提高NiFe-LDH催化剂性能的关键.
- 该研究提出了从工业废物中开发先进催化剂的范式.
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