Towards application of a covalent organic framework-silver nanoparticles@sand heterostructure as a high-efficiency catalyst for flow-through reduction of organic pollutants

Noble metal nanoparticles supported by covalent organic frameworks (COFs) exhibited excellent catalytic performances towards pollutants, while their applications are limited the recovery and reuse from mixture due to small size. Here, we solved this issue supporting framework-silver on sand used as a catalyst for reduction of pollutants. Both static flow-through experiments were carried out good exhibited. High flux (2000 L m?2h?1)/reduction efficiency (more than 99%) 4-nitrophenol, Congo red, methylene blue, obtained under process. Furthermore, after testing 24 h, was unaltered only 0.34 wt% Ag ions released catalyst. Besides cocatalyst COF stable structure our prepared catalyst, these can be also attribute properties which has large size prevent leaching catalysts hydrophilicity fast passing through wastewater. Therefore, may shed light application such kinds heterogeneous continuous treatment toxic carcinogenic