Sn-doped hematite modified by CaMn2O4 nanowire with high donor density and enhanced conductivity for photocatalytic water oxidation

Sensitive Electrochemical Detection of Pb(II) and H2O2 via a Dual‐functional Sn‐doped Defective Bi2S3 Microspheres

“…Figure 2a depicts the high‐resolution spectrum of Sn 3d. Two well‐defined peaks at binding energies of 495.2 and 486.7 eV corresponded to Sn 3d 3/2 and Sn 3d 5/2 , respectively, in which the two main peaks with the peak splitting of 8.5 eV was consistent with that for Sn in the oxidation state of +4 [40, 41]. Similarly, two prominent Bi 4 f peaks, including Bi 4f 5/2 at 163.7 eV and Bi 4f 7/2 at 158.4 eV with the peak splitting of 5.3 eV, demonstrated a single oxidation state of Bi 3+ (Figure 2b) [42].…”

A comparative study of iron nanoflower and nanocube in terms of antibacterial properties

“…As shown in Fig. 2 b, NC@α-Fe 2 O 3 nanoparticle shows the presence of characteristics peaks corresponding to 24.1°, 33.1°, 35.6°, 40.8°, 49.4°, 54.05°, 62.42° and 63.9° for (102), (104), (110), (113), (024), (116), (214) and (300) planes of nanocubes α-Fe 2 O 3 phase, respectively (Pan et al 2021 ; Liu et al 2019 ). The characteristic peaks of the XRD peaks of α-FeOOH and α-Fe 2 O 3 indicate the high purity of the obtained nanoflowers and nanocubes.…”

Preparation of Ag3PO4/α-Fe2O3 hybrid powders and their visible light catalytic performances

“…The heterojunction structure formed between Ag 3 PO 4 and a-Fe 2 O 3 effectively promoted the separation of photogenerated electrons and holes and improved the electron migration efficiency, thus improving the photocatalytic activity of the material. 30,31 However, too much Ag 3 PO 4 will cause Ag 3 PO 4 particles to agglomerate on the sheet a-Fe 2 O 3 , which will reduce the surface activity of Ag 3 PO 4 /a-Fe 2 O 3 , thus reducing the photocatalytic activity of the composite photocatalyst. At the same time, it can be seen that the catalytic activity of the Ag 3 PO 4 /a-Fe 2 O 3 hybrid photocatalyst is higher than that of the physical mixture with the same proportion, which further indicates that the Ag 3 PO 4 /a-Fe 2 O 3 hybrid photocatalyst prepared in this experiment formed a heterojunction structure and improved the photocatalytic activity, while the simple physical mixture cannot form a heterojunction structure.…”