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Boosting charge transfer via molybdenum doping and electric-field effect in bismuth tungstate: Density function
Yuan Bian1, Weixuan Zeng1, Meng He1
1State Key Laboratory for Powder Metallurgy, Central South University, Changsha 410083, PR China.
Abstract:
Regulating internal electronic structure of photocatalysts via elements doping holds huge potential in tuning efficient charge transfer and boosting high-performance. Herein, molybdenum embedded bismuth tungstate (Bi2WO6) is employed to explore the electronic structures and various performances via the assistance of experimental verification and density function theory (DFT) simulation. The band structures and Mo ions doping behaviors of Bi2MoxW1-xO6 are systematically measured. Doping can induce the distortion of intrinsic electric density and internal electric-field, resulted in efficient charge transfer of Bi2Mo0.4W0.6O6. It exhibits much efficient photocatalytic activities under visible-light irradiation, also manifests huge potential as an anode material in lithium-ion batteries (LIBs) which is rarely reported before. This work may provide insights in the development of bismuth-based semiconductors in energy related applications.
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