Figure 9

Percent reduction of 4-NP by NaBH4 in the presence of same catalytic strip Fe/CC-CH re-used three times (a), time taken by recycling catalyst Fe/CC-CH for 70% reduction of 4-NP (b).
Percent reduction of 4-NP by NaBH4 in the presence of same catalytic strip Fe/CC-CH re-used three times (a), time taken by recycling catalyst Fe/CC-CH for 70% reduction of 4-NP (b).