The Eu3+, Fe3+ doped bismuth molybdate photocatalysts can be synthesized through a citric acid complex process. Eu3+ and Fe3+ codoped sample has the best efficiency compared to pure and singly doped catalysts. The higher activity can be related to lower recombination ratio of photo-induced electron-hole pairs. The photocatalytic performance of Eu-Fe-BMO was not simply the sum of Eu-BMO and Fe-BMO two individual catalysts.