Photocatalytic H2 evolution property of Zr-doped sodium titanate nanobelts prepared by dealloying of Ti-based metallic glassy powders

Nanosized Metal Oxide and Nanobelts Prepared by Selective Dealloying of Ti-Based Amorphous Powders

“…As shown, the sisal-like flowers consisting of numerous nanobelts grown on the surfaces of the Ti-based amorphous powders and the diameters of these flowers are ∼50 μm. The XRD and EDS analysis of the nanobelts show that they exhibit a Zr-doped Na 2 (Ti 0.85 Zr 0.15 ) 4 O 9 structure . In a high magnification image (inset of Figure a), one can see a large amount of nanobelts in the large scale.…”

“…The XRD and EDS analysis of the nanobelts show that they exhibit a Zr-doped Na 2 (Ti 0.85 Zr 0.15 ) 4 O 9 structure. 29 In a high magnification image (inset of Figure 2a), one can see a large amount of nanobelts in the large scale. The belt-shaped nanomaterials have dimensions of micrometers in length and nanometers in width and thickness.…”

“…The middle area of the well-separated single nanobelt was insulated, which results from the peeled off shadow mask . It is documented that the nanobelts as semiconductors exhibit absorption bands in the ultraviolet region and possess absorption edges at around 350–400 nm . Therefore, the photocurrent responses of the single nanobelt under UV light irradiation (λ = 254 nm) were performed and the results are shown in Figure d.…”

“…30 It is documented that the nanobelts as semiconductors exhibit absorption bands in the ultraviolet region and possess absorption edges at around 350−400 nm. 29 Therefore, the photocurrent responses of the single nanobelt under UV light irradiation (λ = 254 nm) were performed and the results are shown in Figure 2d. According to the energy band theory, electrons would be generated under UV light and excited from a surface state into the conduction band, 31 followed by further movement in one particular direction under an external electric field and thus forming the photocurrent.…”

2D Titanium/Niobium Metal Oxide‐Based Materials for Photocatalytic Application

“…In addition, Cu 2+ ions were also introduced into the crystal lattice of KNb 3 O 8 to enhance the photocatalytic activity for the degradation of acid red G . Being different from Cu doping, the introduction of Zr atoms played an important role in the formation of the top of the valence band (VB) and the bottom of the conduction band (CB) at relatively more positive and negative positions, respectively, by combining experimental results with first‐principle DFT calculations …”