the Fe@ACFs-1700/
H
2
O
2
pzc
system exhibited remarkable catalytic activity at neutral
and basic pH values. As seen in Fig. 5 (series E
), when both
Fe@ACFs-1700 and H
2
O
2
c
were present, the AO7 elimination rates
were 98.3%, 93.6%, 92.5% and 88.2% at pH values of 3, 5, 7 and 9,
respectively. These results suggest that the heterogeneous Fenton
catalyst system can efficiently remove the dyes over a wide pH
range.