TY  - JOUR
AU  - Shanbogh, Pradeep P.
AU  - Raghunathan, Rajamani
AU  - Swain, Diptikanta
AU  - Feygenson, Mikhail
AU  - Neuefeind, Joerg
AU  - Plaisier, Jasper
AU  - Narayana, Chandrabhas
AU  - Rao, Ashok
AU  - Sundaram, Nalini G.
TI  - Impact of Average, Local, and Electronic Structure on Visible Light Photocatalysis in Novel BiREWO 6 (RE = Eu and Tb) Nanomaterials
JO  - ACS applied materials & interfaces
VL  - 10
IS  - 42
SN  - 1944-8252
CY  - Washington, DC
PB  - Soc.
M1  - FZJ-2019-00736
SP  - 35876 - 35887
PY  - 2018
AB  - Crystal structures of hydrothermally synthesized BiEuWO6 and BiTbWO6 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. Rare-earth-substituted nanomaterials are found to be efficient photocatalysts over the parent Bi2WO6 under visible light irradiation for Congo-red dye degradation. Particularly, BiTbWO6 shows an enhanced photocatalytic (PC) activity compared to BiEuWO6, as evidenced from the photoelectrochemical and time-resolved fluorescence studies. The difference in the observed PC activity of these nanomaterials is also explored through a detailed comparison of crystal structure and electronic structure calculated through the density functional theory method.
LB  - PUB:(DE-HGF)16
C6  - pmid:30264556
UR  - <Go to ISI:>//WOS:000448754500021
DO  - DOI:10.1021/acsami.8b08452
UR  - https://juser.fz-juelich.de/record/859920
ER  -