Fabrication of an Efficient N, S Co-Doped WO₃ Operated in Wide-Range of Visible-Light for Photoelectrochemical Water Oxidation.

ABSTRACT: In this work, a highly efficient wide-visible-light-driven photoanode, namely, nitrogen and sulfur co-doped tungsten trioxide (S-N-WO₃), was synthesized using tungstic acid (H₂WO₄) as W source and ammonium sulfide ((NH₄)₂S), which functioned simultaneously as a sulfur source and as a nitrogen source for the co-doping of nitrogen and sulfur. The EDS and XPS results indicated that the controllable formation of either N-doped WO₃ (N-WO₃) or S-N-WO₃ by changing the n_W:n_(NH4)2S ratio below or above 1:5. Both N and S contents increased when increasing the n_W:n_(NH4)2S ratio from 1:0 to 1:15 and thereafter decreased up to 1:25. The UV-visible diffuse reflectance spect

SUBMITTER: Li D 

PROVIDER: S-EPMC9228223 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature