Figure2bcompares the extinction spectra of the TiO2-HA, Pt73-7/TiO2-HA, and Pt107-7/TiO2-HA. As expected, the pure TiO2-HA sample exhibits bandgap-dependent absorption only in the UV region (λ < 400 nm). The extended tail beyond 400 nm in the TiO2-HA extinction spectrum st...
coli and Pseudomonas may lose their living conditions during the progress, and planktonic bacteria cells are prevented from enriching on the surface. The Ce/La‐dopants can also improve the original photocatalytic response of nano-TiO2 to UV light and environmental temperature. These Ce/La-doped ...
A double beam spectrophotometer (JASCO model V-670 UV–Vis-NIR) was used to obtain the UV–Vis absorbance and transmittance spectra of the films. Raman spectra were obtained using a Renishaw inVia Raman microscope operated with He-Ne laser power of 20 mW (633 nm) as the excitation source....
For each experiment, a 150 W UV light source has been used for irradiation (The intensity was kept as 15 W/m2). At the end of each experiment, centrifugation with 12,000 rpm for 20 min have been performed for each with- drawn sample followed by absorbance measurement using UV...
The absorbance of the centrifuged liquid samples was investigated using a Shimadzu Model UV 2550 spectrophotometer at given wavelength to calculate the photocatalytic degradation rate of organic contaminants. 2.6. Photoelectrochemical tests Photoelectrochemical tests were record by an electrochemical workstation ...
the stability and recyclability tests Figure 5. (a) UV − Vis absorbance transformed KM function. spectra of TiO2, MoS2/TiO2 and CuS/TiO2 nanocomposites. (b) Plots of Scientific Reports | (2023) 13:7994 | https://doi.org/10.1038/s41598-023-34743-2 7 Vol.:(...
Therefore, under the irradiation of the sunlight, the SO42-/TiO2 sample absorbs both visible and UV energies to catalyze the reaction. All things considered, the SO42- doping in the TiO2 narrows the bandgap and reduces the recombination of the photoinduced electrons and holes, thereby making ...
For each experiment, a 150 W UV light source has been used for irradiation (The intensity was kept as 15 W/m2). At the end of each experiment, centrifugation with 12,000 rpm for 20 min have been performed for each with- drawn sample followed by absorbance measurement using UV...
from the absorbance peak intensities of the solutions at 270, 598, 555 and 664 nm, respectively10,12,45. Total organic carbon (TOC) of the solution was also determined by a Shimadzu TOC-V analyzer. Light source was positioned at 15 cm height from the experimental desk. The changes ...
2. The significant UV absorption below 400 nm is assigned to the intrinsic bandgap absorption of TiO2 (~3.10 eV). The deposition of Ag on Pt-TiO2 or TiO2 can greatly increase its visible light response ability. In addition to the absorbance below 400 nm, a broad peak was observed...