“…NH 2 ‐MIL‐88B have been applied as a naked‐eye sensor of organic vapors, drug delivery systems, and catalyst for reactions that include photocatalytic CO 2 reduction, reduction of chromium, and aerobic oxidation of alcohols. [ 1,13–17,20 ] However, it was found that the magnetic iron‐based materials have a strong tendency to agglomerate, which will reduce their catalytic activity. [ 21 ] Nevertheless, Chen et al suggested that the agglomeration can be reduced by the incorporation of carbonaceous sheets to the material.…”