Effect of different metal ions on degradation of fuchsine acid by laccase

摘要

10 kinds of common metal ions with concentration range from 1g/L to 3g/L were selected for investigating the effect of metal ions on degradation of fuchsine acid by laccase. The results showed that the degradation was promoted through the addition of Cu²⁺, Ca²⁺, Mn²⁺, Mg²⁺, Na⁺ and K⁺ with concentration range from 1g/L to 3g/L, while it was inhibited with Fe³⁺, Cr³⁺, Co²⁺ and Ni²⁺ with concentration range from 1g/L to 3g/L. In the presence of 3g/L Cu²⁺, 79.3% of fuchsine acid was degraded in 210 minutes.