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....
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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...
TiO 2 thin film with optimized thickness is deposited on ITO-coated glass substrate for absorbance and transmittance measurement. The Tauc extrapolation method used ellipsometry and absorption data to calculate the optical bandgap. The bandgap obtained via these measurements matches with earlier reported ...
The light source was positioned at 10 cm from the reaction solution. The removal rate of methyl orange was monitored by measuring the absorbance of the solution at 465 nm with a UV/Vis spectrophotometer. In the case of the mesoporous CÀTiO2 catalyst, the light was turned on immediately ...
3.6. UV–visible absorbance and reflectance measurement Fig. 6a and b display the UV–visible absorption and reflectance spectra of the IO materials, respectively. All materials showed enhanced absorption and reflection in the UV region. In Fig. 6a, the pristine TiO2 IO exhibits a broad absorption...
UV-VIS absorption spectra were recorded with an Able Jasco V-550 spectrophotometer; for the solid samples, reflection spectra were registered using an integrating sphere at normal incidence, a band width of 1 nm, and a scanning speed of 1000 nm min−1. The particle size measurement, ...
Five centimeters separated the quartz cells from the lamp. A Thermo ScientificTM Evolution 220 Spectrophotometer was used to measure the optical absorbance of the test solution every 60 min for the course of the 5 h of total irradiation. The absorbance peak reduction for MB was examined in the...
The total transmittance and the diffuse reflectance measurement of the samples are performed with the Ultraviolet-Visible-Near Infrared spectrophotometer (Shimadzu UV-3600, Shimadzu, Kyoto, Japan). Based on the diffuse reflectance measurement R, the bandgap Eg of the nanocomposite films is determined ...
(EIS) are measured with a whole PSC device and are carried out with frequencies ranging from 100 kHz to 0.01 Hz at 0.74 V in dark. The ultraviolet–visible absorbance and transmission spectra were measured by an ultraviolet–visible spectrophotometer (UV–Vis, U3900H). The crystal, chemical ...