MOF-on-MOF strategy improves active site dispersion and enhances pesticide wastewater purification in photo-Fenton-like system,Journal of Alloys and Compounds

当前位置： X-MOL 学术 › J. Alloys Compd. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

MOF-on-MOF strategy improves active site dispersion and enhances pesticide wastewater purification in photo-Fenton-like system
Journal of Alloys and Compounds ( IF 5.8 ) Pub Date : 2024-12-19 , DOI: 10.1016/j.jallcom.2024.178211
Yu Gan, Yan Wang, Dan Peng, Suci Meng, Min Chen, Jia Yan, Meng Xie, Jimin Xie, Guisheng Zhu, Yuanguo Xu

The use of a photo-Fenton-like system to achieve water purification has attracted widespread attention. However, the successful coupling between PMS activation and photocatalysis is one of the challenges of building a photo-Fenton-like system. In this work, a MOF-on-MOF strategy though Prussian blue analogs (PBA) grown by ion exchange using CoFe-ZIF and Fe(CN)₆^3– are considered to be an effective method to enhance the efficiency of photo-Fenton-like system. Furthermore, the clever modification of the sacrificial template (zeolitic imidazolate frameworks) is conducive to improve the catalytic performance of the final material. CoFe-ZIF/PBA possesses advantageous PMS decomposition efficiency (71%) and favorable purification capacity (rate constant of 1.081 min⁻¹), overtaking the majority of the non-homogeneous Fenton-like catalysts. The excellent catalytic performance of CoFe-ZIF/PBA is enhanced by the introduction of PBA nanoparticles, which increases the activation site of PMS and improves the photogenerated electron transport in a photo-Fenton-like system. In conclusion, this study aims to enhance the efficiency of the Fenton-like system by utilizing the intrinsically active site of the material to link continuously injected photogenerated electrons. The findings provide valuable insights for designing catalysts in heterogeneous photo-Fenton-like systems and expands the application of PBA nanoparticles in the field of water purification.

更新日期：2024-12-20

点击分享查看原文

点击收藏

阅读更多本刊新发论文本刊介绍/投稿指南