通过混合价值FeOx纳米层介导的基降解的单一氧气主导地位
Shuo Li1, Shafqat Ali2, Zareen Zuhra2
1School of Materials Science and Engineering, Dongguan University of Technology, Dongguan, 523808, China; Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, School of Chemistry, Xi'an Jiaotong University, Xi'an, 710049, China.
Chemosphere
|October 11, 2023
概括
磁性铁氧化物 (FeOx) 纳米圈催化剂使用过氧化硫酸盐 (PMS) 激活有效降解化合物. 异原子增强了催化剂的稳定性和环境修复的性能.
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:
- 化合物是持久性环境污染物.
- 先进的氧化过程 (AOPs) 对于水的整治至关重要.
- 开发稳定和高效的催化剂对于AOPs是必不可少的.
研究的目的:
- 合成磁性FeOx纳米圈催化剂.
- 评估它们在氧硫酸盐 (PMS) 激活中的性能,以降解化合物.
- 研究异质原子和铁物种在催化活性中的作用.
主要方法:
- 一种混合的多铁素酸材料的热解.
- 磁性FeOx纳米圈催化剂的合成.
- 氧硫酸盐 (PMS) 激活实验.
- 法enol,4-nitrophenol,2,4-dinitrophenol,和2,4,5-trinitrophenol的降解. 在这种过程中,法enol,4-nitrophenol,2,4-dinitrophenol和2,4,5-trinitrophenol的降解过程中,法enol,4-nitrophenol,2,4-dinitrophenol,和2,4,5-trinitrophenol的降解过程中,法enol,4-nitrophenol,2,4-dinitrophenol和2,4,5-trinitrophenol的降解过程中,法enol,4-nitrophenol和2,4-dinitrophenol的降解过程中,法enol,4-nitrophenol和2,4-dinitrophenol的降解过程中,法enol,4-nitrophenol和2,4-dinitrophenol的降解过程中,法enol,4-nitrophenol和2,4-dinitrophenol的降解过程中.
- 电子磁共振 (EPR) 和激素清除研究.
主要成果:
- 成功合成磁性FeOx纳米圈与混合价值铁物种.
- 使用PMS激活实现了高降解效率 (可达98%的).
- 确定单个氧 (1O2) 作为主要反应性氧物种 (ROS).
- 证明了异原子在催化剂定,分散和碳矩阵激活中的作用.
结论:
- 开发的FeOx纳米圈催化剂表现出高活性和稳定性,用于PMS激活.
- 异原子的结合增强了顿类反应的催化剂设计.
- 这些低成本,无毒的催化剂对环境修复应用有前途.
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