通过调节结构性相互透来提高金属有机框架内的协同效应,以促进光催化过氧化硫酸盐激活
Zhi-Yong Liu1, Tao An1, Kun Yu2
1School of Environmental and Chemical Engineering, Jiangsu Ocean University, Lianyungang 222000, PR China.
Journal of colloid and interface science
|January 22, 2025
概括
在金属有机框架 (MOF) 中的结构互穿显著增强过氧化硫酸盐 (PDS) 的光催化激活. MIL-126 ((Fe2Ni) MOF在降解有机污染物方面表现出卓越的性能,显示出实际应用的潜力.
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:
- 金属有机框架 (MOFs) 对过氧化硫酸盐 (PDS) 的光催化激活有希望.
- 在MOF中结构性相互透对PDS激活的影响尚不清楚.
- MIL-88D ((Fe2Ni) 和MIL-126 ((Fe2Ni) 是由4,4'-双二碳酸和Fe2Ni集群组成的.
研究的目的:
- 使用MIL-88D (Fe2Ni) 和MIL-126 (Fe2Ni) 系统地研究结构透对PDS光催化激活的影响.
- 评估相互透的MOFs在降解有机污染物的效率.
主要方法:
- 合成和描述MIL-88D (Fe2Ni) 和MIL-126 (Fe2Ni) MOFs.
- 使用MOF/PDS系统对奥洛素 (OFL) 降解的光催化活性的评估.
- 测试MIL-126 ((Fe2Ni) @聚氨海绵用于OFL的移除.
主要成果:
- MIL-126 ((Fe2Ni),一个双重相互透的网络,与MIL-88D ((Fe2Ni) 相比,具有增强的结构刚性和稳定性.
- 在MIL-126 ((Fe2Ni) 中的相互透使Fe2Ni集群距离减少到0.6纳米,有利于PDS激活.
- 在30分钟内,MIL-126(Fe2Ni) / PDS系统实现了96.5%的OFL去除,速度常数为0.10分钟-1,使用海绵去除了98.4%.
结论:
- 在MOF中的结构性相互透是增强PDS光催化激活的关键因素.
- MIL-126 ((Fe2Ni) 在降解有机污染物方面表现出高效率,即使在阳光下.
- 该材料显示了实际环境修复应用的巨大潜力.
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