Transition metal ions doped Bi12SiO20 as novel catalysts for the decomposition of hydrogen peroxide (H2O2)

Abstract

To the best of our knowledge there are no research in the literature on the catalytic hydrogen peroxide (H2O2) decomposition utilizing the pure Bi12SiO20 (BS) and transition metal ions doped Bi12SiO20 (M/BS; M = Fe, Cu, Ni, Co or Mn) as catalysts. The effect of transition metal ions doping on the crystal structure, morphology, surface and porous properties of Bi12SiO20 nanomaterial was estimated by the XRD, TEM and BET analysis. Interestingly, the doped nanomaterials possessed bigger specific surface areas and larger pore volumes than that of pure BS nanomaterial. Noteworthy, the catalytic performance of Bi12SiO20 catalyst was gradually promoted in the existence of the different transition metal ions as dopants. Interestingly, the performance of Bi12SiO20 catalyst was remarkably promoted with NiO, Co3O4 and Mn3O4 doping by conversion about 38.1% 41.9% and 71.4%, respectively. Furthermore, the H2O2 decomposition conversion was found to be 71.4, 82.9 and 90.5% on the most active catalyst (Mn/BS) at 20 °C, 35 °C and 50 °C, respectively. Finally, the Mn/BS catalyst demonstrated larger stability in the H2O2 decomposition and can be recycled several times.