Two-step hydrothermal process for synthesis of F-doped BiVO4 spheres with enhanced photocatalytic activity

BiOI/BiVO4 p⿿n heterojunction with enhanced photocatalytic activity under visible-light irradiation

“…In Fig. 2e, the O 1s region could be divided into three peaks at about 529.8, 530.3 and 531.6 eV, which could be attributed to the oxygen species of lattice oxygen (O 2À ) of Bi 2 O 2 2+ in BiOI, V-O bonds in BiVO 4 and that of hydroxyl oxygen and adsorbed oxygen on the surface of the composite, respectively [42,44,45]. The BET surface areas (S BET ) of as-prepared catalysts were evaluated by the nitrogen adsorption and desorption measurement, and the results are shown in Table 1.…”

Structural transformation of Sm3+ doped BiVO4 with high photocatalytic activity under simulated sun-light

“…1b shows the magnified XRD peaks in (2 0 0) planes of Sm 3+ doped BiVO 4 catalysts. The peak position of (2 0 0) plane has changed with doping different Sm 3+ contents, which indicates that different doping amounts of Sm 3+ can distort the crystal lattice of tz-BiVO 4 [16]. The refinement results of the samples are summarized in Table 1, using the Rietveld analysis.…”

Enhanced visible-light photocatalytic activities and mechanism insight of BiVO 4 /Bi 2 WO 6 composites with virus-like structures

“…It was found that the photocatalytic degradation process follows the pseudo-first-order kinetics, i.e. ln(C/C 0 ) = −kt, where k is the reaction rate constant [35]. As shown in Table 3, the deduced reaction rate constants of the BVO/BWO composites with BVO molar percentages of 30%, 50%, and 90% are higher than those of the pure BVO and BWO.…”