The influence of Na species addition on the synthesis and catalytic activity of Na2Mo4O13/α-MoO3 as CWAO catalyst

- The Na species amount plays an important role for the formation of Na2Mo4O13/α-MoO3.
- The synthesis pH range can be widened from 3 to 6 by adding more Na species.
- The catalytic activity of all catalyst for the degradation of dye was investigated.
- The mechanism of the promoting effect form Na2Mo4O13 was explored.