Publication

Abstract : Among the several parameters that affect the performance of photocatalysts, crystal phase is one of the significant parameters that must be understood to improve the performance of the catalyst. BiPO4 is one such good example where the crystal phases play a vital role in determining the photocatalytic activity. However, the effect of crystal phases of BiPO4 is not well explored especially for the production of H2O2. To address the above-mentioned knowledge gap, we synthesized different phases of BiPO4 and evaluated their performance in the photocatalytic production of H2O2. Our study revealed that n-monoclinic phase of BiPO4 produced H2O2 with a yield of 788 µM/h/g and this amount is 2.7, 1.8 times higher than hexagonal and m-monoclinic phases respectively. The high dipole moment, low charge carrier recombination, low decomposition of H2O2 on the catalyst surface made n-monoclinic phase of BiPO4 as champion among the three phases.