The blue and green–orange emissions are ascribed to 5D3-7FJ and 5D4-7FJ (where J ¼ 3–6) transitions of Tb3+ ions, respectively. These phosphors have shown a strong, more prominent green emission from 5D4-7F5 at 543 nm. The results have indicated that MgAl2O4:Tb3+ could be a potential candidate as agreen-emitting powder phosphor.