One-dimensional WO3/BiVO4 heterojunction photoanodes for efficient photoelectrochemical water splitting

In‐Situ Synthesis of Tetraphenylporphyrin/Tungsten (VI) Oxide/Reduced Graphene Oxide (TPP/WO3/RGO) Nanocomposite for Visible Light Photocatalytic Degradation of Acid Blue 25

“…This mechanism and the final charge transfer in the nanocomposite were attained through comparison of similar studies that use RGO as the support where electron spin resonance (ESR) spectroscopy was used to confirm the involvement of the • OH and O 2 •− radicals except the involvement of the photogenerated holes towards degradation of AB25 . Moreover, Figure (d) indicated that the TWR3 (350) (0.5% TPP/WO 3 /RGO) composite resulted in a comparatively more degradation of the AB25 dye compared other materials under similar conditions.…”

Chemically Bonded N-PDI-P/WO3 Organic-Inorganic Heterojunction with Improved Photoelectrochemical Performance

“…Density functional theory (DFT) calculations were performed with the Gaussian 09 program, using the B3LYP functional. All-electron double-ξ valence basis sets with polarization functions 6-31G* were used for all atoms; 1 H NMR and 13 C NMR spectrums were recorded by a Varian Inova 500 NMR spectrometer (Palo Alto, CA, USA) with CDCl 3 as a solvent and tetramethylsilane (TMS) as an internal reference; MALDI-TOF mass spectra were recorded by a Bruker BIFLEXIII (Bremen, Germany); Elemental analysis was performed on a flash EA1112 analyzer; the XRD patterns were recorded using a PANalytical X'Pert 3 powder diffractometer (Almelo, The Netherlands) with Cu Kα radiation (λ = 1.54056 Å); The scanning electron microscopy (SEM) images were taken on a JSM-638OLV scanning electron microscope (Tokyo, Japan) equipped with an energy-dispersive X-ray spectroscopy (EDS) detector (Tokyo, Japan); Film thickness measurement was performed with an AMBIOS Surface Profilomer XP-2 (Santa Cruz, CA, USA); the transmission electron microscopy (TEM) images were obtained with a JEOL Model JEM-2100F (Tokyo, Japan); X-ray photoelectron spectroscopy (XPS) spectra were measured on an ESCALAB 250XI electron spectrometer from Thermo Scientific (Madison, WI, USA) with an AlKα source (photoelectron energy: 1253.6 eV); and the Fourier Transform infrared spectroscopy (FT-IR) was tested in a 400-4000 cm −1 wavenumber using a Nicolet IS10 Fourier Infrared Spectrometer (Madison, WI, USA). When preparing the sample, the composite material was scraped off from the surface of the sample, and after KBr was mixed, the mixture was tableted for testing; Raman spectra were recorded on a Renishaw inVia raman microscope system using Ar + laser (532 nm, 20 mW) for excitation; the photoluminescence spectra with an excitation wavelength of 525 nm were recorded on a F1-4600 (Hitachi) fluorescence spectrophotometer (Tokyo, Japan); diffuse reflectance spectra (DRS) of the film samples were obtained with a UV/VIS/NIR spectrometer (Lambda 750, PerkinElmer, Waltham, MA, USA).…”

“…The photoelectrocatalytic decomposition of water is an effective way to transform solar energy into an important clean energy, hydrogen [1][2][3][4]. However, the half-reaction of water decomposition at anodic oxidation is relatively slow, which is the main barrier of the entire reaction [5].…”

Ag2O-decorated electrospun BiVO4 nanofibers with enhanced photocatalytic performance

“…[18][19][20][21][22][23][24] As for modications with noble metals, doping ntype noble metals oxides onto the surfaces of p-type bismuth vanadate semiconductors is a feasible way to construct p-n heterojunctions with enhanced photocatalytic performances. [25][26][27][28] Based on these considerations, we prepared p-n junction Ag 2…”