Conformal growth of ZnO on TiO2 nanowire array for enhanced photocatalytic activity

Abstract

Highlights TiO 2 nanowire array is achieved by direct oxidation of Ti in H 2 O 2 solution at a low temperature of 80 C. A subsequent pulsed laser deposition of ZnO on the TiO 2 nanowire array achieves core-shell TiO 2 /ZnO nanoarrays. The PLD ZnO layer is oriented grown to exhibit an abnormal strong X-ray peak corresponding to (002). The composite film exhibits improved photocurrent and photocatalytic activity.

Green synthesis of ZnO-TiO2/RGO nanocomposites usingSenna surattensisextract: a novel approach for enhanced anticancer efficacy and biocompatibility

“…1d ) show a mixture of the distinct peaks observed in TiO 2 NPs and ZnO NPs, as reported in earlier study. 20 This indicates that ZnO-TiO 2 NCs were successfully prepared. Fig.…”

“…NPs, as reported in earlier study. 20 This indicates that ZnO-TiO 2 NCs were successfully prepared. Fig.…”

A Novel Non‐Fullerene D‐A Interface with Two Asymmetrical Electron Acceptors Facilitates Charge and Energy Transfer for Effective Carbon Dioxide Reduction

“…Currently, inorganic semiconductors, such as TiO 2 ‐based photocatalysts, [ 8,9 ] Bi‐based photocatalysts, [ 10–12 ] transition metal‐based photocatalysts [ 13–17 ] and metal oxides [ 18–20 ] have been extensively studied for photocatalytic CO 2 reduction. However, the majority of inorganic photocatalysts exhibit significant drawbacks such as limited absorption range or exclusive response to UV light, readily recombination of photoinduced holes (h + ) and electrons (e − ), sluggish carriers transfer, and poor recyclability, which are not conducive to catalytic reactions.…”

Synergistic effect of TiCl4–ZnO treated TiO2nanotubes in dye-sensitized solar cell

“…6,7) However, the disordered pore structure of a TiO 2 nanoparticle (TNP) causes a problem in the formation of a space charge region, resulting in a short electron diffusion length and ineffective infiltration. 8) Recently, onedimensional structures such as nanowires, 9,10) nanorods, 11,12) and nanotubes [13][14][15][16][17][18][19][20] have been considered for performance enhancement as facilitated electron transport can be expected due to fast electron migration. TiO 2 nanotubes (TNTs) have a smaller surface area compared to TNPs, which offers various potential benefits such as (1) a higher charge transport speed, (2) the ability to function as a light-scattering material with minimum sacrifice of the surface area, (3) reduction in the charge recombination with the electrolyte, (4) and easy penetration into voids of the organic hole conductor in DSSCs.…”