Facile synthesis of the magnetic metal-organic framework Fe3O4/Cu3(BTC)2 for efficient dye removal

Dyeing wastewaters present high hazards for the environment and human health. Advanced dye removal may be achieved by magnetic metal-organic frameworks (MMOFs) due to theirhigh adsorption andcatalyst efficiencies. However, the existing synthesis strategies of frameworks are often cumbersome and time-consuming in the presence of toxic solvents. Hence, a simple and environmentally-friendly synthetic method is desired. Here, a kind of MMOF, Fe3O4/Cu-3(BTC)(2) (BTC=1,3,5-benzenetricarboxylate), was synthesized via a novel aqueous solution-phase synthesis. The productFe(3)O(4)/Cu-3(BTC)(2) has a high specific surface areaof 755.15m(2)g(-1), and excellent magnetic performanceof 31.2emug(-1). The Fe3O4/Cu-3(BTC)(2) caneffectively remove methylene blue from wastewater in the presence of H2O2. After having been finished the dye removal, it was easily separated and recycled several times by use of the magnetic technology.