Assembly of Ag3PO4 nanoparticles on rose flower-like Bi2WO6 hierarchical architectures for achieving high photocatalytic performance

One‐Step Construction of Novel PbBiO2Br/ZnO Heterojunction Composites with Enhanced Photocatalytic Activity

“…Figure c shows that the binding energy peaks at 142.95 and 138.09 eV are corresponding to Pb 4f 5/2 and Pb 4f 7/2 of PbBiO 2 Br/ZnO and PbBiO 2 Br, which could be from Pb 2+ atoms . Two strong binding energy peaks are observed in Figure d; they are located at 159.0 and 164.4 eV and are attributed to Bi 4f 7/2 and Bi 4f 5/2 , respectively, that indicate the presence of Bi 3+ in the PbBiO 2 Br/ZnO and PbBiO 2 Br materials . Figure e shows the Br 3d XPS spectra of the PbBiO 2 Br/ZnO and PbBiO 2 Br, where the characteristic binding energy peaks located at 68.48 and 69.45 eV are attributed to Br 3d 3/2 and Br 3d 5/2 , respectively.…”

“…[15,17,18] Two strong binding energy peaks are observed in Figure 2d; they are located at 159.0 and 164.4 eV and are attributed to Bi 4f 7/2 and Bi 4f 5/2 , respectively, that indicate the presence of Bi 3þ in the PbBiO 2 Br/ZnO and PbBiO 2 Br materials. [26,27] Figure 2e shows the Br 3d XPS spectra of the PbBiO 2 Br/ZnO and PbBiO 2 Br, where the characteristic binding energy peaks located at 68.48 and 69.45 eV are attributed to Br 3d 3/2 and Br 3d 5/2 , respectively. This indicates that Br À exists in the PbBiO 2 Br/ZnO and PbBiO 2 Br.…”

Synthesis and Enhanced Photocatalytic Activity of Rare Earth Ion (Ce3+, Nd3+, Pr3+ or Sm3+) Doped Bi2WO6 Microspheres for Rhodamine B Degradation

“…N 2 adsorption‐desorption measurements were conducted to determine the specific surface area and pore size distribution of the as‐prepared samples. As shown in Figure a, all isotherms of the samples are very similar and belong to the type II curve according to the IUPAC classification, implying the possible existence of slit‐like pores . The small hysteresis loop located at a high relative pressure range of 0.5–1.0 displays a loop of type H3, suggesting the sample is aggregated by many plate‐like particles .…”

“…As shown in Figure 5a, all isotherms of the samples are very similar and belong to the type II curve according to the IUPAC classification, implying the possible existence of slit-like pores. [18] The small hysteresis loop located at a high relative pressure range of 0.5-1.0 displays a loop of type H3, suggesting the sample is aggregated by many plate-like particles. [19] This is consistent with the SEM results ( Figure 4).…”

Facile Synthesis and Enhanced Visible-Light Photocatalytic Activity of Novel p-Ag3PO4/n-BiFeO3 Heterojunction Composites for Dye Degradation

“…Furthermore, it possesses superior photooxidation capability for organic pollution degradation due to its highly positive valence band position [34]. In most cases, owing to its appropriate energy band position and narrow bandgap, Ag 3 PO 4 is widely employed as the cocatalyst to combine with other photocatalysts to form composites, leading to an obvious improvement of photocatalytic behavior, such as Ag 3 PO 4 /Bi 2 WO 6 , Ag 3 PO 4 /BiPO 4 , Ag 3 PO 4 /Bi 2 O 2 CO 3 , Ag 3 PO 4 /g-C 3 N 4 , Ag 3 PO 4 /BiVO 4 , Bi 4 Ti 3 O 12 /Ag 3 PO 4 , Ag 3 PO 4 /ZnFe 2 O 4 , Ag 3 PO 4 /WO 3 , Ag 3 PO 4 /ZnO, and Bi 2 MoO 6 /Ag 3 PO 4 [38–47]. It is reported that BiFeO 3 is an n-type semiconductor and Ag 3 PO 4 is known as a p-type semiconductor [43, 48].…”