色G的降解使用由NH触发的PMS2-MIL-101(Fe):一个氨基功能化的金属有机框架
Lijie Mo1,2,3, Guangzhou Chen1,2,3,4, Hua Wang5
1Anhui Key Laboratory of Environmental Pollution Control and Waste Resource Utilization, Anhui Jianzhu University, Hefei 230601, China.
一种新型的催化剂NH2-MIL-101(Fe,使用过氧硫酸盐 (PMS) 有效地降解有毒的染料OG. 这种绿色化学方法为染料污染的环境补救提供了一个有希望的解决方案.
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:
- 像OG这样的亚染料由于其毒性而造成重大环境风险.
- 有效和环保的方法对于降解持久性有机污染物至关重要.
研究的目的:
- 为了合成和表征MIL-101 (Fe) 和NH2-MIL-101 (Fe) 催化剂.
- 评估这些催化剂在激活过氧化硫酸盐 (PMS) 进行OG染料降解方面的效率.
- 调查降解机制和影响因素.
主要方法:
- 用于催化剂制备的溶热合成.
- 使用XRD,SEM,XPS和FT-IR进行表征.
- 使用不同参数 (pH,温度,催化剂/PMS剂量) 的降解实验.
主要成果:
- NH2-MIL-101 ((Fe) 显示出卓越的催化活性,在60分钟内达到97.9%的OG降解.
- NH2-MIL-101 ((Fe) /PMS系统在广泛的pH范围 (3-9) 中是有效的.
- 自由基灭确定了硫酸盐基 (SO4•−),基基 (•OH) 和单片氧 (1O2) 作为关键活性物种.
结论:
- NH2-MIL-101 ((Fe) 是一个高效和稳定的催化剂,用于PMS激活.
- 开发的催化系统为染剂废水处理提供了一种绿色和可持续的解决方案.
- 了解活跃物种为优化降解过程提供了洞察力.
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