在Fe-MoS2基硫酸激活系统中以电子转移为媒介的降解和聚合之间的反应路径调整
Taoyun Zhou1,2, Xinru Liu1,2, Ying Liu3
1College of Environmental Science and Engineering, State Key Laboratory of Water Pollution Control and Green Resource Recycling, Tongji University, 1239 Siping Road, Shanghai 200092, China.
Environmental science & technology
|January 23, 2026
概括
使用硫酸盐 (PDS) 的先进氧化过程可以通过电子转移或聚合降解污染物. 这项研究表明,氧化剂剂量控制了Fe-MoS2/PDS系统中的路径,在低剂量下有利于聚合,在高剂量下有利于降解.
科学领域:
- 环境化学环境化学
- 材料科学 材料科学 材料科学
- 催化剂是一种催化剂.
背景情况:
- 基于硫酸盐的先进氧化过程 (AOP) 对于去除有机污染物至关重要.
- 这些AOP可以遵循基于电子转移的降解或聚合途径.
- 了解和控制这些途径,特别是关于氧化剂剂量,至关重要,但尚未得到充分研究.
研究的目的:
- 为了研究Fe-doped MoS2/氧化硫酸盐 (PDS) 系统的化合物 (PC) 移除.
- 阐明氧化剂剂量对反应途径的影响 (矿化与聚合化).
- 为了识别容易聚合的化合物.
主要方法:
- 使用Fe-doped MoS2催化剂,通过PDS激活PC降解.
- 在不同的PDS剂量下分析了反应途径.
- 相关的PC结构和吸附特性,具有聚合倾向.
主要成果:
- 该Fe-MoS2/PDS系统有效地通过高价值铁路径去除PC.
- 氧化剂剂量极大地影响反应路径:低的PDS有利于聚合,高的PDS有利于电子转移降解.
- 像DMP,MOP,MP,MeP和NP这样的化合物显示出高聚合趋势,原因是它们的产品在催化剂上更容易吸附.
结论:
- 聚合是PDS激活系统中普遍存在的过程.
- 氧化剂剂量和特定类型的化合物显著影响降解和聚合途径之间的转化.
- 这项工作提供了对控制AOP反应通路的见解,以优化污染物去除.
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