Unveiling the role of surface heterostructure in Bi0.5Y0.5VO4 solid solution for photocatalytic overall water splitting

Enhanced Photocatalytic Degradation Activity Using the V2O5/RGO Composite

“…For the Vanadium 2p spectrum, binding energies of 517.44 and 524.85 eV correspond to V2p3/2 and V2p1/2, respectively, therefore vanadium is in the +5 oxidation state [ 27 ]. The Oxygen 1s spectrum is split into two major peaks, with binding energies of 530.31 and 532.63 eV; the peak at 530.31 eV corresponds to V-O bonds and the peak at 532.63 eV is associated with the presence of C-O/C=O bonds [ 28 , 29 ]. Figure 3 c shows the C1s spectrum, with binding energies of 284.94 eV and 586.56 eV.…”

New updates on vanadate compounds synthesis and visible-light-driven photocatalytic applications

“…The monoclinic structure of BiVO 4 can be achieved by the co-precipitation method at a suitable calcination temperature [56]. The co-precipitation method can be carried out at room temperature, and subsequently annealing process can be used on the resulting powder, as designed by Guo et al for the synthesis of Bi 0.5 Y 0.5 VO 4 solid solution [57]. In another research, Wang et al have prepared AgI/ZnIn 2 S 4 /BiVO 4 composite via hydrothermal and precipitation procedure [58].…”

Effective Charge Carrier Utilization of BiVO4 for Solar Overall Water Splitting

“…For the one‐step photoexcitation OWS, the CBM of BiVO 4 has to be modulated to satisfy the thermodynamic requirement of HER. Strategies of solid solution and dual doping had already been demonstrated to be feasible to modify the band structure of BiVO 4 , and OWS with AQYs of 3.25 % at 365 nm and 3.2 % at 420–800 nm, respectively, had been achieved [87,111] . Other strategies, such as particle size decreasing and construction of highly ordered porous structures with an ultrathin wall, had also been reported to be effective in negatively shifting the CBM potential, however, only sacrificial hydrogen evolution reaction rather than OWS was identified [106,107] .…”

“…Strategies of solid solution and dual doping had already been demonstrated to be feasible to modify the band structure of BiVO 4 , and OWS with AQYs of 3.25 % at 365 nm and 3.2 % at 420-800 nm, respectively, had been achieved. [87,111] Other strategies, such as particle size decreasing and construction of highly ordered porous structures with an ultrathin wall, had also been reported to be effective in negatively shifting the CBM potential, however, only sacrificial hydrogen evolution reaction rather than OWS was identified. [106,107] Besides (s-m) BiVO 4 , it was reported that the CBM of (z-t) BiVO 4 could be tuned beyond H + /H 2 potential under the influence of epitaxial strain, and OWS could be realized with a STH efficiency of 0.012 %.…”