The organotin coordination polymer [(n-Bu3Sn)4Fe(CN)6H2O] as effective catalyst towards the oxidative degradation of methylene blue

Electronic absorption spectra of MB degradation with the SCP 1 in presence of H2O2; MB, 5 × 10−6 M, H2O2, 20 mM and the SCP 1, 0.025 mM at pH 6 and 30 °C.