Impact of Average, Local, and Electronic Structure on Visible Light Photocatalysis in Novel BiREWO (RE = Eu and Tb) Nanomaterials.

Crystal structures of hydrothermally synthesized BiEuWO and BiTbWO nanomaterials are deduced for the first time by combined Rietveld refinement of neutron and synchrotron data using the ordered and disordered models available in literature. The ordered model is validated for the average structure of these nanomaterials, and it is further supported by the local structure analysis using neutron pair distribution function. Nanomaterials are characterized by field-emission scanning electron microscopy, transmission electron microscopy, Brunauer-Emmett-Teller surface area, diffused reflectance spectroscopy, and Raman Spectroscopy.

High Surface Area SnO -Ta O Composite for Visible Light-driven Photocatalytic Degradation of an Organic Dye.

SnO -Ta O nanocomposite was synthesized by a facile coprecipitation method and further calcined to obtain crystalline powder. Phase formation, morphology, bandgap and photocatalytic properties were analyzed using powder X-ray diffraction, scanning electron microscopy, UV-Vis diffused reflectance spectroscopy, BET surface area and Raman spectroscopy, respectively. Effect of calcination temperature on the crystallinity of the composite was studied.