Synthesis, characterization and photocatalytic properties of Er-doped PbSe nanoparticles as a visible light-activated photocatalyst

High-Efficiency Flexible Sb2Se3 Solar Cells by Back Interface and Absorber Bulk Deep-Level Trap Engineering

“…According to the literature, this doping density is insufficient to cause an evident change in the carrier concentration, conductivity, and mobility of the films . X-ray photoelectron spectroscopy (XPS) curves (Figure c) obtained from the back surface exhibit prominent peaks associated with the Pb 4f 5/2 and Pb 4f 7/2 states, which is consistent with PbSe thin films prepared by other techniques, such as magnetron sputtering, , spin coating, and hydrothermal methods. , …”

Fabrication, functionalization and performance of doped photocatalysts for dye degradation and mineralization: a review

“…In the study of Khataee et al (2015), it was found that 5 mg L −1 of malachite green dye had given rise to an appreciable degree of toxicity after a week and that had induced a significant decrease of the total carotenoids and total chlorophyll in fully grown fronds of Spirodela polyrhiza. Conversely, in the latter study itself, in the cases of exposure to undoped and a 4% Er-doped PbSe NPs, the total chlorophyll content was not significantly reduced when compared to the behaviour observed for the control test scenario.…”

Photocatalytic degradation of ciprofloxacin by synthesized TiO2 nanoparticles on montmorillonite: Effect of operation parameters and artificial neural network modeling

“…In this case, only parts of CIP could interact with limited active sites on the photocatalyst surface, thereby causing lower photodegradation efficiency of CIP at higher initial concentration. In addition, according to the BeerLambert law, as the initial CIP concentration was increased, the path length of photons entered the solution decrease, thereby resulting in lower photon adsorption on catalyst particles and consequently decreasing the generation of hydroxyl radical [52,53]. Thus, the photodegradation efficiency was gradually decreased as a result of increasing CIP concentration.…”

“…Eight intermediates with high match factor of mass spectrum were successfully identified (see Table 7). Some of the intermediates have not been detected due to their quick oxidation to the derivatives [53]. Generation of these intermediates during the degradation of CIP emphasizes effective photocatalytic degradation of this pollutant in the presence of TiO 2 /MMT nanocomposite.…”