Structural and spectroscopic comparison between polycrystalline, nanocrystalline and quantum dot visible light photo-catalyst Bi2WO6

Structure and shape of Bi2WO6 are constructed from the PDF data refinement, representing the quantum dot of the material. The outer-planes of the particle were constructed from the d-values of the TEM fringes. The nanocrystalline counterpart constructed from multiple unit cell is given for comparison.190