Ultra-stable self-standing Au nanowires/TiO₂nanoporous membrane system for high-performance photoelectrochemical water splitting cells

Abstract

Here we introduce for the first time a synthesis method of a core–shell photoanode composed of nanostructured self-standing titania nanotubes filled with Au nanowires. Photoanode shows high photon to current efficiency of 35% and incredible stability.

Photocatalytic VOCs Degradation Efficiency of Polypropylene Membranes by Incorporation of TiO2 Nanoparticles

“…The two peaks, Ti 2p 3/2 and Ti 2p 1/2 , correspond to binding energies of 458.24 and 463.94 eV, respectively. The distance 5.7 eV between the two Ti 2p peaks indicates that all of the Ti in the PPM + TiO 2 NPs sample is in the valence state of Ti 4+ [ 28 ]. Two deconvoluted O 1s peaks are shown in Figure 6 c. The lower binding energy peak at 529.25 eV is assigned to Ti–O bonds in the O 2− chemical state of the TiO 2 lattice.…”

Photoelectrochemical Properties of BODIPY-Sensitized Anodic TiO2 Layers Decorated with AuNPs for Enhanced Solar Performance

“…After the deposition of AuNPs on the TiO 2 surface, a second more negative flat band energy can be observed, and it is related to the formation of the Schottky barrier at the semiconductor-/metal interface. These observations are consistent with literature reports . Moreover, the donor densities were estimated for both photoelectrodes (Figure B), and an increase in the donor density from 1.2 × 10 –19 cm –3 for TiO 2 to 1.5 × 10 –19 cm –3 for TiO 2 /Au was observed (for details, see Table S2, Supporting Information).…”

“…These observations are consistent with literature reports. 63 Moreover, the donor densities were estimated for both photoelectrodes (Figure 8B), and an increase in the donor density from 1.2 × 10 −19 cm −3 for TiO 2 to 1.5 × 10 −19 cm −3 for TiO 2 /Au was observed (for details, see Table S2, Supporting Information).…”

Preparation of chitosan/retinoic acid @ nanocapsules/TiO2 self-cleaning one-dimensional photonic crystals and the study of the visual detection of acute promyelocytic leukemia

“…The anion free radical of cO 2− reacts with most organic compounds by oxidation to generate CO 2 and H 2 O, 36,37 while the hole oxidizes OH and H 2 O adsorbed on the surface of TiO 2 to cOH. 38,39 At the same time, cO 2− reacts with H 2 O oxidizing it to cOH. cOH has a strong oxidizing ability, which can attack organic compounds and extract H atoms to generate new free radicals, stimulate chain reactions and lead to the decomposition of organic matter.…”